20 Most Recent 2002 GMC Sonoma Extended Cab Questions & Answers


A chirping bird like sound could be a clutch

2002 GMC Sonoma... | Answered on Dec 21, 2017


Check the MAS sirflow sensor and clean them with the sensors

2002 GMC Sonoma... | Answered on Nov 07, 2017


We don't supply schematics. Check the wiring for chafing.

2002 GMC Sonoma... | Answered on Oct 26, 2017


check with junk yard for cheaper replacement --keep vin available ---if its a stock truck should be no problem with replacement

2002 GMC Sonoma... | Answered on Jul 01, 2017


Do you know how to do automotive electrical testing ? Looking at a wiring diagram an check power an grounds for the lights that are not working . Voltage drop testing !
Basic Electricity for Service Techs Ohm law Current Flow Opens Shorts
Learning how to test properly is the way we fix automotive electrical problems .
How to Use Multimeter to Troubleshoot Common Problems
Do you know what a wiring diagram is ? You need these to find testing points in a electrical circuits . Free wiring diagrams here . http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click on lighting ,then under subsystem click on parking lamps . Then click the search button ,then the blue link.
Electric Testing Techniques You Need to Know .
As far as your door goes take the door panel off an check componets inside , window componets for being tight . with out hearing an looking at the door would be guessing . take to a repair shop .


2002 GMC Sonoma... | Answered on Jun 25, 2017


Sounds like you need to check out your local public library for a service manual to find the headlight relay, or in the owner's manual. Either one will help you determine which relay is which. It would be a good idea to take notes and that way you will know which relay controls what.

2002 GMC Sonoma... | Answered on May 02, 2017


Possible the vacuum bleed-off to the switch you installed isn't allowing it to completely disengage. Pull the bleed-off line from the new switch and see if it works. could be just a tight spot/bent closed in the bleed-off line or the vent plugged.

2002 GMC Sonoma... | Answered on Apr 04, 2017


Your mechanic should know, he reset the light. Battery life can be as short as 24 months. You need to look at the age of the battery, if you bought a low price battery, it is a 24 month one. Check the cables on the battery and make sure they are clean and tight. You can get the OBD codes from any autoparts store, they read them free.

2002 GMC Sonoma... | Answered on Mar 25, 2017


No u unscrew the drain plug, and release the cap of pressure.

2002 GMC Sonoma... | Answered on Jun 04, 2016


Hi Shannon:
If it is a standard transmission it won't have one.

2002 GMC Sonoma... | Answered on Jan 09, 2016


Easiest place to start is checking for a broken control knob. Pull the knob off and see if it is cracked/broken on the back side. You can turn the metal control rod then by hand to see if it works. If no problem found there, you will have to check for a blend door motor/actuator that controls heat/cooling attached to the heater box under the dash for proper operation

2002 GMC Sonoma... | Answered on Jan 06, 2016


this indicates a problem battery (have a load test done on it) , drive belt adjustment or condition or problem alternator out put
with the head lights on there is insufficient capacity from the battery and/or alternator to keep everything running as it should

2002 GMC Sonoma... | Answered on Aug 02, 2015


put it in reverse and back up several feet. This should correct it, you may have to do it a couple of times.

2002 GMC Sonoma... | Answered on Feb 20, 2015


THIS IS NOT RECOMMENDED, IF YOUR IDLE IS TO LOW CHECK YOUR IDLE AIR CONTROL MOTOR, THIS IS WHAT CONTROLS IDLE SPEED. THEY OFTEN GET DIRTY AND CANNOT METER AIR PROFERLY

2002 GMC Sonoma... | Answered on Nov 20, 2014


Cable kinked up or linkage broken/loose...might b able to adjust on shifter end of cable

2002 GMC Sonoma... | Answered on Sep 01, 2014


ALL fuel pumps are in THE FUEL TANK

2002 GMC Sonoma... | Answered on Aug 08, 2014


An OBD Code --- doesn't mean a sensor failed

All parts have to be component tested, as well
as the engine's mechanical's that the sensor
gets it's info from

On the internet there are pictures

2002 GMC Sonoma... | Answered on Jul 30, 2014

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