2003 GMC Sonoma Questions

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At 55 mph my truck normally runs at about 1600 rpms. Now, with temps in the teens or lower, it runs at about 2000-2100 rpms for a while and then settles down to normal. I have tried down shifting and it does from D ...
This is a used truck, I got in Dec. and had brake and rotors pads replaced 4 times, since then. Brake lines and boaster also have been replaced once. My freind said there is a little box that goes from the Brake lin...
I changed the radio. Starts n shuts off
move. and when i turn the wheel, it makes a noise. Oh yea, and my speedometer is stuck at 100mph. What should I do?
Growels real loud going down road Grease is fine Mech says some wear but not terrible
The truck is a 4WD and every now and then makes a growling noise when you start from a stop, but the noise halts if you take the time to flip the drivetrain into 4WD and back to 2WD. The sound appears to be coming fr...
i need to replace bushings in front ,truck hits hard on all holes and bumps
Hi I've got a 2003 sonoma zr2 and I can't seem to get any heat coming out of the floor vents no matter which setting I use on the dash, when I do put it to just floor it will only come out of the defrost? Any advice w...
at first it only did it when it was wet then it ran ok for awhile. started doing it again but it was only right at start up. after it ran for awhile or shut it off then restart it would run fine. now it will start but...
I test the speed sensors in the front hubs and on the rear of the transfer case. I got no resistance on one side and also at the speed sensor on the transfer case. On one speed sensor I had 1140 ohms. Anybody know ...
Replace fuel pump with new GT280 connector Wiring is correct.What else could make the sensor light stay on?
when the engine is started when warm we get a little heat but that stops after a couple of minutes.