20 Most Recent 2003 GMC Sonoma Questions & Answers

Maybe there are videos on youtube showing how .

2003 GMC Sonoma | Answered on Mar 16, 2017

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

2003 GMC Sonoma | Answered on Nov 10, 2016

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.

2003 GMC Sonoma | Answered on Jul 18, 2016

Sounds like you have a blown fuse or relay

2003 GMC Sonoma | Answered on Jun 10, 2016

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?

2003 GMC Sonoma | Answered on Mar 01, 2016

fill until it runs out of the fill hole

2003 GMC Sonoma | Answered on Jan 05, 2016

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

2003 GMC Sonoma | Answered on Jul 08, 2015

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.

2003 GMC Sonoma | Answered on Apr 28, 2015

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

2003 GMC Sonoma | Answered on Apr 28, 2015

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

2003 GMC Sonoma | Answered on Mar 10, 2015

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

2003 GMC Sonoma | Answered on Feb 20, 2015

Could be a bad one even if its new it happens

2003 GMC Sonoma | Answered on Feb 25, 2014

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