GMC Sierra 1500 Questions Maintenance & Repair

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I have a 2006 GMC Sierra 1500 and the alarm goes off at random times only when we're at home. The other night we went out to check the area and heard our nasty neighbors laughing. We have had troubl...


What Is This Hole For? 1994 Gmc Sierra 4x4 K1500

I was changing the oil filter and noticed a hole, it has threads in it, seems to be an outlet plug for some kind of oil, the pan is shaped like a bloated belly its not tranny or oil pan. someone lose ...


Rear Running Lights

My rear running lights don't work. The brake lights work, reverse lights and signal lights all work normally. But when I turn the lights on the rear tail lights don't light up????

94 GMC Sierra 1500 2D

It starts to stall out and shake a lil when in reverve or coming to a stop. The "service engine soon" light comes on also when Im going over 50 mph for a couple miles or so. Ive been told its my cadil...


my truck has 5 error codes P0122 throttle position sensor low input the book says should be @ 5volts but i checked it and its @4.9 is that still too low? P0420,P0430 catalyst system efficiency below ...

Where Is The Computer Located On This Truck?

i'm looking for the computer. is it under the dash? or under the hood?

1991 Gmc Sierra Forum

My oil pressure guage bottoms out when i accelerate from a full stop... what can i check for?


Shudder During Acceleration

My truck begins to shudder between 40-50 mph but stops if I speed up or slow down. It rides rough before 40 and after 50 but not as bad as the 40-50 mph shudder. It seems to come from the rear of th...

1991 GMC Sierra 4x4. Doesnt Want To Lock Into 4 Wheel Drive???

I put a new axle in the front of my truck today and the 4 wheels drive worked. Tried it again a few hours later and cant get it to lock in? Anyone got any solutions to this problem???? Anything will h...

Heater On 2005 Sierra Does Not Work

I bought a 2005 Sierra SLT with 42k miles on it on Saturday 2/20/2010 from a used car dealer. The truck looks and runs great, ran a car fax and car check and it was rated at 93 on car check. The tr...

ABS And Brake Light On. What Does It Mean?

My abs light and my brake light is on, I heard this is a pretty common issue with these trucks. What are some recommendations on a starting point for troubleshooting.

4L60e Transmission

Can I use the trans from a 98 yukon in my 94 sierra ?

Cant Get The Tensioner Lifted

I'm trying to help my husband but only know a little. Hes asleep, would like to get this answered before he wakes


Just Bought A "06 GMC Sierra 4x4 Extended Cab 1500 SLE, Are There Any Probl...

my new to me truck runs great, bit hard on fuel but hey its a 4x4 truck with a 5.3 liter V8. Does anyone know if a 5.3L is similar to the old school 327 CI chev.


what should the engine compression test at?


Few Problems Please Help.

I have a few questions bout fixing it up first i have a problem with the interior passenger door handle not working so i was wondering if someone could help me out by giving me some ideas what might b...


what is the part number for the transmission?

Tire Size

will Lt 265/70R17 fit on my truck

My 1999 GMC Sierra Has The Check Engine Light On, ABS Light On, The Brake L...


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