Edmunds.com | Inside Line | Auto Observer Your Account | Help | Directory
You are here:
![[F]](http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/site.gif){kind=small}
Forums
Pickups Chevrolet Silverado & GMC Sierra GMC Sierra: Problems & Solutions 
1492 messages, Last post on Oct 12, 2006 at 5:32 AM
You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram
|
Replying to: wolfdog (May 12, 2005 12:33 pm) I hope these potential problems point you in the right direction. |
|
|
Replying to: mekchalngd (Apr 27, 2005 9:50 am) |
|
|
Replying to: claw (May 12, 2005 6:41 pm) |
|
|
I got a new radio from a friend who didn't want it. We both have '04 2500HD pickups. I originally had just a radio, and I stuck his old one w/CD player in my dash and it's locked. Apparently the RDS radios aren't as easy to reset. These aren't the BOSE units - just the GM's. Any one have a clue if I can reset this or should I buck up and take it to a dealer? Thanks - Tim |
|
|
Replying to: wolfdog (May 12, 2005 12:33 pm) I had one hit indicating that it could be the fuel pump going out...I had the gas tank off a year ago to replace the brake line and had to take the pump off because I broke the ground lead and had to drill through the plastic electrical housing to resolder the lead...coincidence? I did replace the gas filter and that did not solve my problem. I haven't replaced the fuel pump as of yet... Now, I have taken a second look at the EGR valve. I took it off and cleaned it and tried to make sure that it was closing at idle. I didn't see any problem with it and stuck it back on. However, recently I disconnected the vacuum line, stuck a golf tee in the vacuum line and have been running it around and have noticed that my surging has cleared and the truck is running well. At highway speeds, after warmup, the Check Engine light comes on as expected, but the truck runs fine. My assumption at this point is that the EGR valve is spring loaded and lost enough of its closing strength that the small vacuum present at idle is enough to keep the valve open and cause the stumble I am seeing at low throttle. At least I hope it is because I'm going to replace it shortly... Another thing that has come to mind is that possibly there is too much vacuum at idle, indicating a malfunction of the EGR valve vacuum solenoid...It's probably the EGR valve because it takes alot of abuse in the form of heat and it is the original. Unfortunately, I don't have a vacuum gauge to give a definitive analysis. Good luck...
|
|
I own a 1998 gmc sierra extended cab 2wheel drive. Which has developed a vibration that no one can pin point. It seems to be comming from down in the under carriage or drve train not sure.. All u-joints and carrier bearing and tires have been checked. ??
|
|
|
Replying to: dhealey05 (May 18, 2005 3:26 pm) If that aint it, I've always been suspicious of that EVO switch for the steering. They go bad very frequently on these trucks and when they do, they sometimes make it do some really weird stuff. Mostly the steering is affected, but I just don't trust it - wish they never put it on the vehicle. - Tim |
|
|
|
|
1. I was wondering if anyone has heard a gurgling sound/ rattle coming from the dash area(passenger side more). It only occurs when truck is under load in 1st, 2nd, 3rd gear, you don't hear it in overdrive. When the truck is cold and the engine temp hasn't heated up the noise is not heard either.. 2. Anybody have problems with the digital odometer reading going off. If you bang the console sometimes it will come back on.
|
|
|
Replying to: bip44 (Feb 17, 2004 11:55 am) |
|
You are here:
Forums
Pickups Chevrolet Silverado & GMC Sierra GMC Sierra: Problems & Solutions
New? Join Now!
Forum Tools
Search Forums
Browse by Vehicle
2010 GMC Sierra 1500
2004 GMC Sierra 2500
2006 GMC Sierra 3500
Browse by Board
Browse by Topic
Today's Chats
