Rear Suspension Problems of GMC Envoy

The contact owns a 2005 GMC Envoy. While driving at various speeds, the rear of the vehicle abruptly dropped to the ground. The vehicle was taken to the dealer for diagnostic testing, however, the details could not be provided. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 101,000.

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Tl-the contact owns a 2003 GMC Envoy. The contact stated the rear suspension had dropped low to the point where the vehicle was unsafe to drive. The contact if the vehicle hits a bump the tires could blow out and cause a crash. The contact their are numerous complaints regarding the rear suspension for this year make and model but the manufacturer had not provided any assistance towards the repair. The failure mileage was 188,000. Jo.

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The rear of my 2003 GMC Envoy xl goes down after the vehicle is turned off. Usually the rear of the vehicle goes back up after the vehicle has been on for a couple of minutes. Once, though, the rear suspension failed while driving. Now my the rear on my vehicle is dawn this is a second time and no goes up that look danger for drive.

My 03 Envoy xl air compressor will not inflate the air suspension. The rear end is sitting way down with a little bit of air in the shocks but will bottom out easily. The compressor comes on for about 30 sec to 1 min at startup but no increase in ride height. This is the second time this has happened - 1st time was about 3-4 months after I bought the car in 2006 and the dealership fixed it for free. I have been reading on-line and have seen similar complaints over the years for the model - 2003 GMC Envoy xl.

For the last 6 months, the rear of our 2003 GMC Envoy xl goes down after the vehicle is turned off. We have had the compressor for the suspension replaced but it continues to happen. Usually the rear of the vehicle goes back up after the vehicle has been on for a couple of minutes. Once, though, the rear suspension failed while driving.

Rear suspension on my 2005 GMC Envoy denali has an air load leveling system. It continuously deflates. Manufactures owners manual says after 3 days of non-use will it deflate. While driving, the air compressor starts intermittently to inflate it back up. This started in October of 2008, and continues to this day.

While driving driver heard a loud banking noise coming from the rear of the vehicle. Drive took the vehicle to the dealer for inspection, but mechanic could not duplicate the problem.

Compressor for automatic load-leveling rear suspension cycles on and off intermittently while the vehicle is off. This happens even after the vehicle has been turned off for several hours. If not noticed, compressor will continue to cycle on and off and run down the battery. Usually can hear a "puff" of air being released from the system right before the compressor cycles on. The compressor can stay on for as little as several seconds or for up to a few minutes. The cycle can last for what seems to be as little as 5 minutes or up to a few days so that the battery runs down if left at an airport while on vacation, for example. The only way to "break" the cycle is to drive the vehicle or turn the car on and then turn it off after several seconds. Turning the car on and off doesn't always work. But, when operating the vehicle, the compressor seems to work normally. This problem has been happening for months, I have 5,000 miles on the vehicle which was purchased 2/2003. It has been in the shop for this problem 3 times. I took it in for service at farrish GMC / pontiac yesterday (3rd time) and it is still there today. As of yet, they have been unable to fix this problem because no technical service bulletin exists to guide them. The dealership has not conducted a visual inspection of the system or its components to look for leaks or broken parts. They've only done a computer diagnostic, which found nothing wrong. However, service consultants at the dealership have witnessed the event happening and the compressor turning on and off. . . While the vehicle is off. Again, I need to stress that the problem is happening when the vehicle is turned off and not in use. The compressor should not even be able to turn itself on if the car is turned off. First time I brought the vehicle in for service was 7/12/2003, the second time on 8/29/2003 and then again for a third time on 10/20/2003.

The vehicle was rear-ended at about 45 mph. The back-end now fishtails, and there's tremendous body-roll with the slightest turn of the steering wheel. Body work was completed to repair the beck-end, but no work has been done to the suspension. Three separate trips to the dealer's service department claim that the excessive body roll is a charcteristic of the car and that there is no work to be performed. The vehicle is unstable at best, and dangerous while changing lanes at freeway speeds.

Rear end load leveling suspension has gone down on two(2) separate occasions leaving the car body very low to the ground. Unsafe situation for driver and passenger. Complaints to GMC over faulty situation have gone unheard. Area zone manager contends there is nothing wrong with the vehicle.

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