What causes the engine to go into reduced power mode when AC is running? Takes about 5 mins to shut down in town. Shuts down in about 15 mins running 65 on highway. Scanning computer shows no codes.

I need to take the light off

How are you suppose to loosen the serpentine belt to allow removeal of the alternator? looks like two idler pulleys without any way to rotate to allow tighten or lossen belt.

The battery light is blinking on and off in the message center. Is this an indication of a bad alternator?

Where is the engine coolant temperature sensor/sender located.

when i turn a corner in 2 wheel drive something is binding up like it s still in 4 hi. I took the actuator out and checked it , it goes in and out when i select 2 hi to 4 hi and back

Oil gauge always shows 80 lbs pressure/I have a new unit but I can't find the old unit on the engine

03 Silver. 2500HD 8.1. instantly cycles start/stop at 3 second intervals when key initially hits Run (not Start), but doesn't start, just cycles. Can start and run by pushing key hard past Run to Start, then it starts. Problem started after dead battery tries, and new batterey installed.

engine light goes on and off

I just purchased the truck. The gentlemen informed me he had just replaced the injectors last year, all 8 of them. Then while driving it the other day i noticed a little white smoke when I took off. I asked around, one of my buddies said i could have something in my air intake causing a little white smoke? is that possible or are the injectors going out again?
I figured I would add some better fuel treatment? and get a oil change plus buy a new air filter..

why does my truck read " reduced engine power "

high-beam lights go out when on bumpy road >

I am having trouble finding what is drawing my battery to complete dead after 5 to 6 hours. I took out electric start. Had battery and alternator tested. Did an oil change and oil pressures fine. Nothing on in truck to draw power?

my truck has diesel going into the oil, I already replaced all the injectors and its still doing it

I hear other happy diesel truck owners of getting 16 to 19 miles a gallon on their trucks I only get 13.7 not towing and if I go easy on the pedal. any sugestions?

I don't see idlerarm & pitman arm as a choice on the web site,can anyone give me an idea?

I hear of other 2500 HD Duramax Diesel truck owners of getting good mileage while I only get 13MPG or less in my 2007 HD Duramax Diesel, what is the problem why is my truck not given me a good Mileage? thanks I apressiate your imput

what sounded like a bad belt tensioner but driving this morning the sound just stopped and then I had no power steering and very limited brakes the display on the dash says battery not charging.

2004 Silverado 2500 HD 6.0 Gas where is o2 sensor (bank 2- sensor 1 located

hear a noise in front end when driving and turning

I have a truck that has a factory installed beacon light and I need the wiring diagram. Can you tell me where to get


My power steering pump is leaking and needs to be replaced. I'm told the job will cost $760.00 which includes a oil change. Does that sound fair?

problem started this morning and when you put it in park the doors do not unlock automaticly but the truck will start in park even though the indicator does not show that you are in park

I have a leak in the rear brake seal how do i fix it ?

Had clicking with intermittent starting Would start when starter was pounded on.. replaced starter still no start.. replaced the neutral safety switch still no start.. Now what ???

fuel gauge stopped working

takes a man to shift this trans into any gear

the problem only happens randomly. We are here in Austin and it happened almost when he got to Wichita Falls but has not happened again in 30 days.

just quit running, no code in display!

how do i remove the tube around the spark plugs?