20 Most Recent 2003 GMC Sonoma Questions & Answers

Maybe there are videos on youtube showing how .

Powertrain Control Module (PCM) On the right side of the engine compartment

If compressor is not kicking in, low pressure will be too high. If Compressor IS kicking on, orifice tube may be blocked, or compressor may be bad. You need a full manifold set to work on AC, not just the gauge that comes on a refill can.

Sounds like you have a blown fuse or relay

What makes you think the IAC is the problem? Highly unusual to change this valve as much as you have in the time fame indicated. What are the symptoms?

fill until it runs out of the fill hole

Sounds as if the ignition cylinder has an internal problem. You may have a sticky wafer inside the cylinder. You can try using some WD 40 and inserting the straw inside the cylinder and giving it a good spray. You can also try gently rocking the steering wheel back and forth while trying to turn the key. With out the ignition cylinder turning, the gearshift will not come out of park nor will the steering wheel come unlocked. Hop this helps

The filter is located by the driver side underneath the truck. Following the fuel line coming out of the fuel tank will also help you to find the filter.

Driver's side of truck on the inside of the frame rail in front of the fuel tank.

Motor Burnt out , they don't last long , and they just die on you, any time

That should not have happened ! Did you disconnect and forget to reconnect, or otherwise damage, the security wires running to the ignition switch ?

well is the fluid discolored brownish looking instead of red or rose pink if so it might help a little if its like described there's something wrong the cooling system is not cooling it off the right way running hotter then normal there could be a broken vacuum line causing the late shift and that will make the fluid burn you could be hard on the gas and this makes a transmission shift late and on an old truck that's 13 years old now released in 2002 and the combo of not changing it for long periods of time /driving habits/cooling the fluid the lines go through the radiator to the trans cooler that's inside it this will take down a transmission in a short time that's brand new and will surely destroy and older one but maybe there's a chance you can catch it before its ruined and give it life till the summer

Could be a bad one even if its new it happens