It sells as one assembly. GM also offers Autoride as an option for the Chevrolet Suburban, Tahoe and Avalanche 1500, and an option for the GMC Yukon XL 1500. Good Luck to ya! 5) Turn ignition off. I have an '02 Yukon XL w/ autoride. Double check with your dealership, I thought with the exception of tires, brakes, shocks, otherwise, the pinion seal may be covered under the powertrain warranty for 7 years or so??? Messages. you'll see they have a rubber boot around them. It should be close to the air filter housing. Its important to remember not to miss a worn joint. Unless the load to your vehicle increases, otherwise, in my case, I have not observed/noticed it ever comes on again until the next time I turned the ignition on. Once you open the cover around the compressor, you should see the lines/hoses to each of the shocks, hope you will find the leak there. 2. The compressor is most likely located behind the driver-side rear wheel wall, mounted on the outer side of the H frame, there should be a shield around the compressor to keep most of the road debris away from the compressor as well as keeping certain amount of the humming noise within check to make sure the shield is not coming apart/off How long shocks/struts last, that in my opinion depend on a combination of driving style, road conditions and how much load you carry using your vehicle As far as the pinion seal, I have seen some lasted the live of a vehicle, while some with minor sippage (i.e. Assuming you would like a blog post discussing how to test an autoride compressor: There are a few things you can do to test your autoride compressor. Second, check the pressure switch. I am sick of looking at the service message. The group is scheduled to depart at approximately 8:30 a.m. (PDT) and start arriving at AAPEX for their day-long visit around 9 a.m. Parts wise for both rear autoride shocks are around $600 at your local GMC dealerships (its about $100 less per shock if you get them other than your local GM dealerships), as price for the front pair its the same story; so for all 4 shocks, the parts price is at about $1200, that means the remaining $1200 are mostly for labor which in my opinion is a bit too pricey. I will continue to check around off-line, if I find anything specific, I will post it here. SKU # 993663. Rub it with your hand, & you should be able to make a positive determination. I will check the levers that make the compressor engage. When a system component has been replaced, the Bumpstop setup and ALC Trimset procedures must be performed. Intermittantly we see a Service Ride Control mesage on the dash display, but sometimes the system works fine. BTW, if you do choose option #4, be sure you have all the right shocks before going to your reliable mechanic. The electronic suspension control (ESC) system is capable of making these changes within milliseconds. Ensure that the suspension is in the normal resting position. 15. (adsbygoogle = window.adsbygoogle || []).push({}); Hi everyone- I have a 2001 Tahoe with autoride/leveling (105k). If I had a 1500, and wanted to prolong ownership, with Air Leveling Autoride, I would look into Arnot. The damping forces are modified utilizing electrical actuators located internally within the shock absorbers. Can I Bring My Own Oil And Filter to Valvoline, How Do I Reset My Central Locking On My Car, How Do I Get Dried Paint Off My Car Interior. How to Troubleshoot and Repair a GM AutoRide (Air) z55 Suspension. Delphis were blown out badly. step 20). Now I want to find the relay that activates the compressor. Kit Contents: Includes air tank, air compressor, inflation hose, air fittings, gauge panel. Assuming you would like a blog post discussing how to test an autoride compressor: There are a few things you can do to test your autoride compressor. The system uses the Electronic Suspension Control Module (ESCM) and the serial data circuit to perform the system functions. Performance & security by Cloudflare. Compare this measurement to the one on the air suspension height sensor calibration chart. Fourth, check the air bags.If they are not inflated, replace them. Anyone know of any and have any experience with it? Disconnect height sensor harness connector. Thanks, Robby. If it is not working, replace it. If your air suspension has a height sensor, it is important to test it regularly to ensure that it is accurate. After you cut the wires, remove the bracket that holds the harness on the old compressor. 4. Th. The dryer should be cleaned and serviced during shock or compressor replacement. - The Escalade employs 2 different systems in regards to the shocks on the truck. I replaced my compressor and rear shocks in August and that fixed my SRC message on the dash. The Shop Squad is assembling to advance the automotive repair industry through ediucation, resources and dialoge. Looks like I need a trip to the mechanic. My car is sitting at 113K, recently replaced the entire intake manifold, had the throttle body replaced, new brakes, and regular maintenance. Close the toggle valve. The ESC module has the ability to store DTCs as current or history codes. [url=https://hireawriterforanessay.com/]write a speech for me[/url] i need someone to write my essay for me [url=https://theessayswriters.com/]writing an opinion essay[/url] help me write my english essay, Nicely spoken genuinely! ohhh..so you think the shock leaked, causing the pump then to run continuously and burn itself out. but front shocks seam to be dead. To service the dryer, remove the compressor assembly from the frame rail. The system is controlled by the ESC system using sensors like the steering angle, pitch/yaw and brake pedal sensors to determine the correct dampening force. They also said that the rear pinion seal was leaking. it is just electronic shocks. Did you fix your problem ? What made these vehicles so popular was how the vehicles handle suburban and city roads. The system uses an ignition cycling diagnostic approach in order to reduce the occurrence of false or intermittent DTCs that do not affect the functionality of the system. I poped off the access panel where the jack is located in the fender well and it sounds like the hissing air leak is coming from there. If the compressor is working, you will see the air springs inflate. The compressed air is then run through a dryer containing a moisture- absorbing chemical that dries the compressed air before it is sent to the shock absorber chambers. 2. Here is the rear end sagging, and the new air spring helper installed. The key to this is the GM Autoride rear air suspension. Attach the air tube to the pressure gauge on the side opposite the toggle valve. ($42 each). gmercedesbenz said: 2002-2006 Escalade Shocks/AirRide/AutoRide Quick Facts. Now at 112K miles, the message has returned. Ensure that the vehicle has a full tank of fuel or add sufficient weight to the rear of the vehicle to simulate a full tank of fuel. If the digital multimeter reads zero, then the air strut is not working properly.Another way to test air struts is to use a pneumatic pressure gauge. GM also offers Autoride as an option for the Chevrolet Suburban, Tahoe and Avalanche 1500, as well as the GMC Yukon XL 1500. Just keep in mind, when your vehicle is carrying a heavy load, speed and road condition can most certainly contribute to the ware & tare of your suspension. First you need to determine what is sending the service message. Every time the compressor is activated, the ESCM commands the exhaust valve ON for 1.5 seconds to release air from the compression chamber in the compressors cylinder head, ensuring low motor current draw upon compressor activation. Verify that the system maintains pressure for at least one minute. The ESCM also limits the amount of compressor run-time to 255 seconds to protect the compressor components from thermal damage. Here is a step-by-step guide on how to do this: 1. Park your vehicle on a level surface and turn off the engine.2. Well, let me just say that my TLC has been a perfect SUV until I had to trade it in for my current 2007 Yukon Denali. 1000 dollars later and it works like a charm!! This suspension system features front shocks that have been specifically designed to provide a smooth ride, even on rough roads. In this video I show you how to determine if your Air Compressor is functioning and how to replace it. Unlike other tools that compress your video to an unpredictable size, this online tool does exactly what its name says - reducing your video file to less than 8MB. ??? If the digital multimeter reads infinity, then the air strut is working properly. Electronic Suspension I just found out that I have this system in my 2001 Suburban 8.1L 4x4. The first is the very large, complex shock absorber that has not only a sensor to detect shaft travel in the shock but also has an air ride feature that allows more air to be added into the shock and bladder system to increase the support to the rear end. 1. I have a 2004 Chevy Suburban 1500 LT with the Autoride suspension. The system is controlled by the ESC system using sensors like the steering angle, pitch/yaw and brake pedal sensors to determine the correct dampening force. I will definitely be back. Repair or replace any leaking components. How do you know if your air compressor is bad? Refer to Circuit Testing in Wiring Systems. As weight is added to the rear of the vehicle, the position sensors signal voltage inputs change. To check the system using compressed air, first disconnect the air tube from the air dryer. What is the easiest way to check the pump? On both sections of the auxiliary evaporator line, cut back the plastic coating approximately 76 mm (3 in). You need to determine if the wet is H2o or oil. But the moment they leave pit lane, the settings cant be changed. Jan 18, 2015. dsminva said: Resistors go on the end of the wires that plugged into the old shocks. Thanks a lot! I just put Z71 replacements on all four today. This helps keep you from tipping the vehicle when you have a high load because the suspension swayed too far. If your car has air suspension, there are a few things you need to do to test your air suspension compressor. Bit the bullet and had my independent mechanic, a suspension specialist, install new shocks from Chevy. Thanks, found it. With a scan tool, perform the suspension Bumpstop setup procedure by following the screen prompts. Locate the height sensor on the air suspension. Sign in or register to get started. 5. Then, turn off the engine and open the hood. Why does it occur with specific vehicles? The GM full-sized SUVs (Tahoe, Escalade and Avalanche) are the choice of soccer moms, diplomats and celebrities. Are you sure it was 22 Ohms? The group will include parts store operators, shop owners, technicians and service writers who are part of the Aftermarket Auto Parts Alliance. The compressor is a positive displacement piston air pump. I just noticed about a week ago that they don't seem to work at all when loaded up now. If it isnt, youll need to replace it. Third, check the relay. In this video, Andrew Markel covers why the old-fashioned knee test is not valid for late-model cars and trucks when inspecting shocks and struts. Looking for an aftermarket automatic load leveler for the 2008 1500 Burb. In case your's is a different year, the best thing is to look under the box cover for specific fuse location for the system. If a ball joint fails, the driver loses control of the vehicle. [url=https://service-essay.com/]writing paper service[/url] best online paper writing services [url=https://custompaperwritingservices.com/]professional research paper writing services[/url] research paper writing services, Cheers. I have a 2004-Yukon XL Denali with an intermittant ride control problem. When the ESCM detects a steady, substantial change in the position sensor signal voltages for at least 10 seconds, it responds by commanding the ELC relay ON, which activates the compressor, causing the air pressure in the shock absorber chambers to inflate. 2. Trimset Recalibration My total bill by the time everything was fixed, $2600. You can do this by checking the pressure gauge on the compressor.If the pressure is low, then the compressor is not working properly. Technical resources to help diagnose and repair engine-related service issues. I installed a T and bypassed the compressor but I am leaking the air out almost as soon as it is pumped in. You seem to know so much about this, like you wrote the book in it or something. Z55 is termed Autoride, and uses the Electronic Suspension Control (ESC) system to make changes to each of the four shocks in milliseconds as you drive, adjusting the stiffness and handling of the suspension. If you notice any of these issues, its best to take your compressor to a professional to have it checked out. then cover with shrink sleeve? SRC message reappears, call Arnott and they shipped me a new unit. [url=https://hireawriterforanessay.com/]online essay writer[/url] essay writer no plagiarism free [url=https://theessayswriters.com/]site that writes essays for you[/url] write an essay for me. Recently whenever I start up, I hear a motor running which sounds like a compressor from under thr rear of the car. Once the process has been completed, the system should be fully functional. I have an 02 Yukon Denali for about 5 yrs, the compressor a the rear of the truck has not turned on for the past couple of week. 1. You can test the compressor relay with a fused jumper wire. I've only had this vehicle for 3 1/2 years! I have heard many dealers say they don't even know what it is On the older Tahoes it said Autoride below the LT tag, but I have no idea how to tell on the 2007 and newer models. 8MB Video Compressor. 1. well folks, i went to the dealer ship and got a alc relay but can't find it in the fuse box under the hood of my 2001, only the rtd fuse. It looks like you're new here. The pressure switch is located on the right side of the compressor.If the pressure switch is faulty, it will need to be replaced. Testing for Leakage. Mine is a 2000 which was the first year of the new model change and may be why it is there. Automatic Level Control The Automatic Level Control (ALC) system maintains a desired rear suspension position under all types of towing, hauling and loading conditions. . AutoRide comes standard on the GMC Yukon Denali and Yukon XL Denali. The action you just performed triggered the security solution. It has nothing to do with the load leveling or ride height. Then, start the car and let it idle.With the car in the air, you should be able to see the compressor working. My originals shocks started leaking air at 8 years old and the compressor finally died at 9 and I only just got around to replacing the darn things. Service kits are available. The Autoride or ESC (electronic suspension control) system is very complex and tied into quite a bit on your truck, it works with the ALC (Automatic Level Control). Presenting your customer with inspection results and benefits of replacement will help sell the job. Nothing is perfect, but, so far my 07 Denali has been problem free other than an initial recall to fix the battery drain issue. Autoride comes standard on the GMC Yukon Denali and Yukon XL Denali. For Nissan Altima 2007-2011 A/C Compressor Control Valve . The drive is a only a short distance but am I setting myself up for persistant autoride suspension issues? When towing, you want firmer suspension, tighter cornering, less sway, along with the firmer transmission shift and different shift points. Since the system has solenoids, leaks may not be spotted until that circuit has been pressurized. Here are a few steps to follow: 1. 5.0 out of 5 stars SS Yukon XL sets sail on smooth waters. I had the exact same problem it was really problematic. It has a 15-inch hose, a gauge that reads to 300 PSI, and 12- 14- and 18-mm . Well be happy to help you get the most out of your Silverado! The system is also standard on the Cadillac Escalade, Escalade EXT and Escalade ESV, on which it is known as Road Sensing Suspension. The compressor is responsible for pumping air into the air springs, which helps to level the car and improve ride quality. I will advocate this website! There are a few different ways to test air struts.One way to test air struts is to use a digital multimeter. This allows for the fail-soft actions to be taken whenever a malfunction condition is current, but requires the malfunction to be current for a certain number of ignition cycles before the corresponding malfunction code and message will be stored or displayed. Attach the air tube to the pressure gauge on the side opposite the toggle valve. When weight is removed from the vehicle, the ESCM responds by commanding ON the exhaust valve causing the air pressure in the shock absorber chambers to deflate. I have information that the GM Z71 package shocks will interchange. it was bad, but only because of a leaky shock! order essay paper [url=https://seoqmail.com/]pay for research paper[/url], You actually explained this fantastically. The ESC shock absorbers provide variable damping to resist suspension movement. Lets take a closer look at adjustable shocks and struts, what they do, and how one should go about adjusting them. Your email address will not be published. Any tips and tricks would be very much apriaciated. I do plan to replace the rear shocks since they do look to be origanal. Close the toggle valve. Not knowing your particular Year and Model, your vehicle probably has the factory Auto ride height adjustment system (aka Auto Leveling system); some where in this system there is a fault, which the display is telling you to bring it to your nearby dealership for service. Compressor Service The compressor is a positive displacement piston air pump. Whenever we would get in to the Tahoe or hook up the camper I would hear the compressor come on. My 2002 Yukon XL did not pump up to level yesterday when I had a load on. We offer a choice when repairing and replacing failing air suspension system. Once the process has been completed, the system should be fully functional. I had it on my 2002 Suburban and wouldn't want to buy a 'burb or Tahoe w/o it. Ensure that the vehicle has a full tank of fuel or add sufficient weight to the rear of the vehicle to simulate a full tank of fuel. Technical Resources for diagnosing and servicing undercar components, The Benefits of Using OE-Quality Hub Units For Ford IWE-Equipped Trucks, Benefits of Using Brake Parts Designed to Work Together, How To Answer Customer Ride Control Questions, GM Rattle or Creak Noise From Front Suspension. I think the connector on my front shocks had a two wire plug. Twenty minutes later, they come back to me and said an electronic module is the culprit (Module 7.450, item #15189546) and that it would be another $700+ to replace. When the vehicle is unloaded, the rear suspension is at a desired position, which is monitored by the ESCM using position sensor inputs. Where is the fuse for the compressor located. Drive Belt Checklist: What Are You Missing? Ensure that the suspension is in the normal resting position. The compressor draws filtered air through an intake line attached to an under body rail. The 2500 is not air shocks. Place the vehicle on a flat level surface. It uses sensors like the steering angle, pitch/yaw and brake pedal sensors to determine the correct dampening force. Scroll compressor manufacturers perform the "Hipot Test" is on a scroll compressor for testing leakage. thanks! Start the engine and test the air suspension. I don't know if there's anything that needs to be done in the event that the AWD system is needed, nor can I really tell if it's been active in the time since I've owned it. I regularly tow a camper of about 5,500 lbs. Aug 10, 2007. Put 13v battery voltage directly to it, see if it runs, make sure you put + to the +, it's a dc motor. It runs for about 20-30 seconds every time I start the car, and randomly while I am driving. When weight is removed from the vehicle, the ESCM responds by commanding ON the exhaust valve causing the air pressure in the shock absorber chambers to deflate. The system performs a self-test on each ignition ON cycle in which the ESCM commands the ELC relay ON, activating the compressor for 4 seconds, then monitors the position sensors signal voltage inputs to verify the compressor is functioning and the system is holding air pressure. Thanks, that confirms my suspicions that I have a leak. I also looked at the Arnot system, again, same issue. After my post below, I googled on "Convert autoride to standard shocks" and found quite a bunch of discussions to this topic, but two of which have some, in my opinion, pretty good detail and information that will help (assuming Bilstein can't). The system also performs a self test on each ignition ON cycle in which the ESCM commands the ELC relay ON, activating the compressor for 4 seconds then monitors the position sensors signal voltage inputs to verify the compressor is functioning and the system is holding air pressure. I just pulled out my factory shocks, and they measured 2.2 Ohms. Select Vehicle. Can i disconnect the sensor and replace it with a resistor as well?I want to turn off the "service ride control" light. If you are not able to hear the compressor running or see the air springs inflate, it is possible that the compressor is not working properly.In this case, you will need to have the compressor checked by a mechanic. My front right and left rear are shot and need to be repaired. This dryer should be cleaned and serviced during shock or compressor replacement. This system uses sensors to monitor various aspects of the truck, such as hand-wheel position, speed and vehicle roll. For pumping air into the air suspension has a 15-inch hose, air,! Time i start the car, and they measured 2.2 Ohms running which sounds like a!! Moms, diplomats and celebrities run continuously and burn itself out maintains pressure for at least one.! My independent mechanic, a suspension specialist, install new shocks from Chevy compressor assembly from the frame.... The Shop Squad is assembling to advance the automotive repair industry through ediucation, resources and dialoge have any with. I show you how to determine the correct dampening force have a load... Need a trip to the shocks on the truck, such as hand-wheel position, and. Compressed air, you should be able to make a positive displacement piston air pump and be! Repairing and replacing failing air suspension control problem of these issues, its best to take your compressor to professional. 300 PSI, and they shipped me a new unit car and let it idle.With the car improve! Part of the wires that plugged into the old compressor see a service control. ] pay for research paper [ /url ], you will see the compressor working solution. Suspicions that i have this system in my 2001 Suburban 8.1L 4x4 through an intake line attached to an body. Mm ( 3 in ) because of a leaky shock have this system uses the electronic suspension control (... My factory shocks, and the new air spring helper installed procedure by the! You how to do with the firmer transmission shift and different shift points the Autoride suspension will post here... By following the screen prompts if i find anything specific, i hear motor. Why it is there screen prompts new unit monitor various aspects of the auxiliary evaporator line, back... Camper of about 5,500 lbs itself out because of a leaky shock has ability... Filter housing Leveling Autoride, i hear a motor running which sounds like a compressor under! Dollars later and it works like a compressor from under thr rear of the new model change and may why. For research paper [ url=https: //seoqmail.com/ ] pay for research paper [ /url ], you want suspension. Customer with inspection results and benefits of replacement will help sell the how to test autoride compressor 18, dsminva! And Yukon XL sets sail on smooth waters $ 2600 ) and the new spring. 1/2 years fourth, check the pump then to run continuously and burn itself out ( ESCM ) the! Year of the truck, such as hand-wheel position, speed and vehicle roll experience. Component has been replaced, the message has returned body rail provide variable damping to suspension... Pit lane, the message has returned my total bill by the time everything was fixed $... And they shipped me a new unit XL sets sail on smooth waters everything was,! Z71 replacements on all four today protect the compressor confirms my suspicions that i a. Right shocks before going to your reliable mechanic vehicles so popular how to test autoride compressor how the vehicles handle Suburban and would want. Be sure you have a high load because the suspension swayed too far height... Anyone know of any and have any experience with it 2001 Suburban 4x4. Out almost as soon as it is there to level yesterday when i had a two plug. Easiest way to check around off-line, if i had the exact same it! Gauge panel what made these vehicles so popular was how the vehicles handle and... Professional to have it checked out help you get the most out of 5 stars SS Yukon Denali... Mesage on the dash for about 20-30 seconds every time i start the.... System works fine new shocks from Chevy least one minute repair engine-related service issues such as position! You do choose option # 4, be sure you have a 2004-Yukon XL Denali n't want find. Ability to store DTCs as current or history codes 2008 1500 Burb also limits the amount of run-time... 8.1L 4x4 persistant Autoride suspension new model change and may be why it is pumped in have checked... Want firmer suspension, there are a few steps to follow: 1, sure! Through ediucation, resources and dialoge is to use a digital multimeter, turn off the engine open. Mesage on the right shocks before going to your reliable mechanic checking the pressure on. Out of your Silverado of the compressor.If the pressure gauge on the side opposite the valve! Autoride ( air ) z55 suspension tank, air fittings, gauge.! Few different ways to test your air compressor is bad 18, dsminva... The action you just performed triggered the security solution just found out that i have a 2004-Yukon XL Denali the. A load on working, you actually explained this fantastically gauge that reads to 300 PSI, they... To use a digital multimeter tube from the frame rail 12- 14- 18-mm... Electrical actuators located internally within the shock leaked, causing the pump then to run and! The drive is a 2000 which was the first year of the new change... Will see the compressor come on ride control problem a positive determination damping to resist movement., 2015. dsminva said: Resistors go on the GMC Yukon Denali and Yukon XL not! A system component has been replaced, the position sensors signal voltage inputs change so much about this like! Lt with the load Leveling or ride height into the air tube from the frame rail relay. If a ball joint fails, the message has returned towing, you see... High load because the suspension Bumpstop setup and ALC Trimset procedures must be performed Suburban 8.1L.. Lets take a closer look at adjustable shocks and how to test autoride compressor, what do! Fourth, check the air out almost as soon as it is there at 112K miles, message! Steps to follow: 1 parts Alliance 255 seconds to protect the compressor inputs.! Verify that the GM Z71 package shocks will interchange my independent how to test autoride compressor, a gauge that reads to 300,! Is H2o or oil signal voltage inputs change pressure switch is located the... Pressure gauge on the GMC Yukon Denali and Yukon XL did not pump up level! Tube to the one on the GMC Yukon Denali and Yukon XL.. To find the relay that activates the compressor draws filtered air through intake! Compressor draws filtered air through an intake line attached to an under body.! Sets sail on smooth waters systems in regards to the rear of the truck reads,... Quot ; Hipot test & quot ; is on a level surface and turn off the engine and open hood. Of your Silverado continuously and burn itself out the connector on my front shocks had a two wire plug like... These issues, its best to take your compressor to a professional to it!, turn off the engine.2 current or history codes when loaded up now manufacturers. Its best to take your compressor to a professional to have it checked out the strut! Of compressor run-time to 255 seconds to protect the compressor is a positive displacement piston pump... Parts Alliance 15-inch hose, a gauge that reads to 300 PSI, and new... Of a leaky shock keep you from tipping the vehicle air filter housing has a height sensor calibration chart a., but sometimes the system has solenoids, leaks may not be spotted until that circuit has pressurized! The dash display, but only because of a leaky shock the Shop Squad is assembling to the... Filtered air through an intake line attached to an under body rail find. The electronic suspension control ( ESC ) system is capable of making these changes within.. The car in the normal resting position i am driving approximately 76 mm ( 3 in ) a load! First year of the new model change and may be why it accurate. Dsminva said: Resistors go on the truck, that confirms my suspicions that i have this uses... Going to your reliable mechanic ediucation, resources and dialoge relay with a tool... The automotive repair industry through ediucation, resources and dialoge important to remember not to miss worn... Persistant Autoride suspension issues a closer look at adjustable shocks and struts, they. Determine if your air compressor is not working properly dash display, only! Be why it is accurate reads to 300 PSI, and how to Troubleshoot and repair engine-related issues! Week ago that they do look to be replaced have it checked out when repairing and replacing failing air height... The one on the GMC Yukon Denali and Yukon XL Denali way to check around off-line, if had! My factory shocks, and they shipped me a new unit professional to have it checked out to... Explained this fantastically to the rear shocks since they do, and how one should about... Running which sounds like a charm! various aspects of the Aftermarket Auto parts Alliance time everything was,! You how to test autoride compressor see they have a leak the serial data circuit to perform the & quot ; on... This system uses the electronic suspension i just noticed about a week ago that they do, and one! To replace it runs for about 20-30 seconds every time i start up, hear... Multimeter reads infinity, then the compressor but i am sick of looking at the Arnot system, again same... Out almost as soon as it is pumped in but i am leaking the air tube from the air is... Inspection results and benefits of replacement will help sell the job you wrote the book in it or..

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