Seven problems related to loud engine noise have been reported for the 2002 GMC Envoy. The most recently reported issues are listed below.
When I start the truck in the morning it sounds like the engine is reved up with the loud fan noise. I had the fan clutch replaced independently and the loud noise continues and a slight loss of power at times while driving and it feels like it's taking too long shift into the next gear. The noise is really heard when you accelerate on the gas pedal.
I have a roaring sound at times when I first begin driving the vehicle. If I slow down or stop within the first 5 minutes of driving, the vehicle commonly stalls. Has never stalled at a high rate of speed. I have the ecas (electric suspension) on my vehicle, but I was not part of recall 04v289000 as far as I know. This recall sounds exactly like what is happening with my vehicle. This problem has been going on for at least 3-4 years, and even the dealer "can't seem to find the problem. " I'll I ever hear is that the computer doesn't show any problems. The vehicle is a piece of !@#$%.
Roaring sound, no power, vehicle can barely reach 30mph, loud noise has existed for long time (several years) and the power problem usually resolved after about 5 minutes. This is a defect. I found hundreds of owners complaining of same problem on line. Dealer replaced fan clutch.
Severe loss of engine power, loud noises from engine and poor shifting and very poor acceleration.
February 2003 engine failed at only 8,000 miles. Driving at 45 miles an hour, without warning engine stop and car shut down. Dealership had to replace engine. I have had several problems since and nothing corrected. Dash board lights/computer does not work at times. Very loud wind noise while driving. Now loud noise coming from engine and dealership cannot fix 100%. This is the first time I have ever felt this unsafe in any vehicle. Manufacturer gave and extension on the replaced engine but that does not make me feel safer. I have contacted manufacturer on several occasions. When they do not do anything about all the problems, you cannot complain or go any further than clerk working on your case. Even if you mail in a complaint about the clerk, your complaint will only go as far as that clerk assigned to your case.
Engine stalls for no apparent reason. I have contacted dealership and they can find nothing wrong. I advised them of a recall regarding the fuel system that may affected the problem. Says they replaced the fuel filter. The first time I took it in, they said that it was the ignition switch. Also transmission makes a very loud noise when attempting to take off at times. It sounds like an engine fan that will not go off. There is a major lost of power when this problem is occuring. I bought this car as a program car, with @ 11, 000 miles on it already. I've had problems with it from day one. I have only had it a few months. I am extremely irritated with this engine problem. This is extremely unsafe. Dt.
When driving and without any prior warning vehicle suddenly stalled, causing loss of all power. Problem has occurred five times since purchase date. Consumer has contacted dealer. Consumer states after each filure, vehicle does not shift properly, the engine must reach a high rpm to shift transmission, even after shifting engine, the transmission makes an excessive noise, vehicle acts if though it is pulling heavy load, symptons persist for 40 to 50 miles after failure.