Five problems related to engine and engine cooling have been reported for the 2005 Chevrolet Suburban. The most recently reported issues are listed below.
In motion on city and highway.
The contact owns 2005 Chevrolet Suburban. The contact stated that when turning the vehicle off the engine fan failed to turn off. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was 120,000.
My 2005 Chevrolet Suburban z71 switches randomly and without specific cause into reduced engine power which nearly go me killed when merging into a high-speed interstate pulling a trailer. The only way to "fix" it (make the engine run normal again) is to pull to the side if the highway (dangerous!) and shut the truck off for a few minutes. This happen randomly but at least three times a day. I know others have this problem and gm says I have to bring it to then when this is occurring but I can't do that when the truck is barely limping along! this is a safety issue and is well documented on gm chat sites across the internet.
I was driving on the highway and looked down and the speedometer said 100! cars were passing me and I knew there was no way I was driving 100. Once I got to my destination, sitting still the speedometer was at either 50 or 60. When in motion it usually reads about 105-115 when going between 60-70 mph. (I think, I really have no idea since my speedometer is broken!!!) I have just over 75,000 miles on a 2005 Suburban 1500.
: the contact stated while driving 50 mph on a dry highway in a passing situation, a light stating "reduced engine power" illuminated in the vehicle. The vehicle lost a majority of the engine power, and the tachometer would not pass 1200 rpms. The vehicle was not immediately taken in for service.