idle

Hello everyone!! I'm somewhat new to this site and it looks like I need some help. Here's what I have: 2002 Tahoe 4.8L with 170,000 miles. Over the past few weeks I've noticed when it gets really cold at night (teens or 20's), and I go to start in the A.M., it cranks a while before starting...

I have a 96 Tahoe with the 5.7 Vortec. After parking it, I can start it up and it idles weird. It will idle up and down from 500 rpms to 1500 rpms until I give it some gas for a few seconds. Any ideas?

:help: Alright Guys (and Gals), please bare with me. I'm new to the forum and have noticed several other threads addressing a similar issue. I'm a novice when it comes to working on my truck (I rely on YouTube). I own a 1999 Chevy Tahoe LT, 5.7. Most recently, after the engine is warm, it...

2003 Yukon, 5.3 Flex Fuel w/124K miles. SES light on, P0303 w/rough idle. Previous repairs and PM history: Replaced intake manifold gaskets @ approx 85K miles in 2008 Replaced OEM spark plugs @ 92K miles 2009 (just because I thought it was time, no problems noted). Installed Bosch...

My Tahoe was running like crap. Ive replaced plugs, wires, rotor, distributor cap, O2 sensor, Catalytic converter and the muffler that was rusted out while I was down there. It runs and sounds better but...The idle is a little rough, but not much. The idle stays pretty much at 600-700 in...

Hi and Thanks in Advance for any help or advice. I have a 2002 Tahoe LT (5.3Z-Flex Fuel) with 95,000 miles which has been having a few issues lately. 1) Cold Start (<45 degrees) Rough Idle and Code P0300. When starting the car in cold weather it first revs up to 2000-2500 rpms for a few...

Hello, I have a 2002 Tahoe with 125,000 miles. The Service Engins Soon light came on and the error code shows, "Fuel too lean Banks 1 & 2." To me this indicates O2 sensors. I changed both, now the light comes on intermittantly. I have looked for the EGR valve, but think I don't have on...