Question about 1999 GMC Sonoma

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Airline by abs , cannot find where it goes small line goes to heater. 2002 gmc sanoma 2.2. should i put a screw in it?

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2 Answers

Where is the fuel pump shut off switch located on an 03 GMC SANOMA?


Pretty sure it doesn't have one. Mostly, only Fords had them. No fuel to engine? Check fuel filter and fuel pump operation, have the fuel pressure checked. Do you hear the fuel pump turn on for 2 seconds with key in on, not start? It should, to put pressure in the line to the engine and to the injectors. If pump doesn't turn on, either bad pump or a problem in the fuel pump circuit. There is a fuse and a relay in the circuit.

Jun 29, 2015 | GMC Cars & Trucks

1 Answer

I can't find the relay for the starter on a 2002 GMC Sanoma. It won't start makes no noise when trying to start.


Relays rarely go bad. Most likely to neutral safety /range selector switch is bad. Under the truck on the drivers side. Mounted to the transmission, under the shifter cable.

Jun 28, 2015 | 2002 GMC Sonoma

1 Answer

2002 gmc silverado NO voltage to air conditioner switch


theres an ac relay thats under the glove box and above your feet, if you were sitting in the front passenger seat. You have to remove the plastic cover which is held up by several small nut screws and behind that is the relay. it either has 2 screws or 4 screws I think, don't quote me on the 4 screw one it could be 3 but I can't remember. It's only a $35- 60 fix depending on which one you get but both will work. One you just have to screw in crooked and the floor ac blowers will lose a little pressure but not enough to notice. It's also covered up by that plastic piece that goes over it, that is if you put it back on

Sep 30, 2013 | Cars & Trucks

1 Answer

All lights out in back of 2002 gmc sanoma


check all fuses if its not a fuse check all wiring to see if one came out or corroded ....meaning if theres is corrosion it will not allow your lights to work properly

Feb 13, 2013 | 2002 GMC Sonoma Extended Cab

1 Answer

I have a 99 gmc sanoma there is a vacume leak some wears there is a vacume line running throu the driver side finder well and i dont know wear it goes


Have an assistant blow cigarette smoke in the end of the line and look for the leak under the dash,
Thinking that goes either to the brake light switch or the heater control

Sep 16, 2011 | 1999 GMC Sonoma

1 Answer

94 gmc sanoma. heater dampers do not work properly. can hear a vacuum leak at rear of heater control switch. new switch at dealer is not available,junk yards no luck. the vacuum hose configuration is what...


From the feed line under the hood,have an
assistant(engine off) blow cigarette smoke into the line,you should be able to see exactly where the leak is.Often is is a hose,not the switch itself.

Oct 05, 2010 | 1994 GMC Sonoma

1 Answer

1994 Sonoma: 1994 GMC Sanoma with 4.3 fuel injection. Idle spee...


that is un adjustable you would have to change the idle postion sensor

May 05, 2010 | 1994 GMC Sonoma

1 Answer

How do I replace Serpentine belt on 92 gmc Sanoma.


should just have to turn the tensioner and pull belt off alternator pulley, release tensioner ,remove belt. install new belt, apply tension to tensioner and put belt back on alt. pulley.will require 1/2 in ratchet or serp. belt tool.

May 18, 2009 | 1992 GMC Sonoma

1 Answer

Code 304 won't clear new plug wirea,new coils 2002 4cyl sanoma


Code 304 is a cylinder #4 misfire. After changing plugs did you clear your code by removing the negative battery terminal for a few moments and then re-connect. Also if the code returns check your cyl #4 wire for degradtion.

Feb 19, 2009 | 2002 GMC Sonoma Extended Cab

1 Answer

Hi.we need to replace the heater core on a 1999 GMC Sanoma how is this done


you must remove the dash assembly. and remove the hvac box.

Nov 25, 2008 | GMC Sonoma Cars & Trucks

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