Question about 1996 GMC Sonoma

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Will not start

How do you check the relay on a 96 gmc sonoma to see if it is working. i can hear it click when i turn the key on?

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  • kimberlystub Feb 05, 2009

    I was driving down the highway and my check engine light came on and then would not start.It wanted to start but would not turn over?Stranded 4hrs from home.

  • Anonymous Feb 21, 2009

    no fuel



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If it clicks that means it's working. doe you have a throttle body? is it fuel injected?is it a distributor or coil pack that fires the vehicle?

Posted on Aug 30, 2008


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1 Answer

Gmc sonoma no start

You could avoid that by taking it to a qualified repair shop ! Because it obvious you do not know how to do automotive electerical testing ! How to voltage drop test starter motor circuit First off you need to know how the system works , all componets in the circuit . How to find a wiring diagram , how to use a volt meter . And in a lot of caes the ignition switch is a input to a control module , BCM - body control module ,PCM - powertrain control module etc...
Starter Voltage Drop

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We have a 1999 GMC Sonoma that won't start. Sounds like the fuel pump isn't functioning---used to hearing a sound right at the time of ignition that is currently not happening. Any ideas?

Check fuse and relay first. If fuse is good, listen to the relay ( in the engine compartment relay box) while someone turns the key on to see if the relay clicks. If it doesn't click, try swapping it with a similar relay, or you can interrogate the relay socket to determine if the VCM is trying to turn the pump on. (Please see my tip at to check the socket) If all of this is working right, use a test light at the fuel tank connector (black and grey wires) to verify the voltage is getting to the pump. If voltage is getting to the pump, but the pump isn't running, replace the pump. Let me know if you have any questions.


Oct 28, 2010 | 1999 GMC Sonoma

1 Answer

No power to fuel pump 1998 sonoma

by turning the key to the ON position you should hear the fuel pump start to prime for 5 seconds. If not heard replace the oil sensor. If heard pumping replace the fuel pump relay instead

Jun 30, 2010 | 1998 GMC Sonoma

1 Answer

I have a 2001 GMC sonoma 4.3 v6 that will not turn over. I can turn the key all the way but starter does not engage. New starter, New relay switch. I get power, all lights lite up, battery fully charged. I...

Try another starter and also try turning the crank bolt with a ratchet and socket to make sure that the crank isn't frozen in place. Do not leave the keys in the car when doing so. You don't want anyone messing around in the truck when trying that!

Jan 11, 2010 | 2001 GMC Sonoma Extended Cab

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1997GMC Sonoma 4x4 engine cranks but wont start

sounds like a fuel pump problem. take off gas cap and have someone sit in the truck and turn iginition key to on. (do not turn key as if you were starting but to "on only") you should hear the fuel pump engage. if you dont hear the fuel pump then check the fuel pump relay. it is located behind the glove compartment. hope this helps...

Jul 04, 2009 | 1997 GMC Sonoma

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Need wiring diagram for 1996 GMC Sonoma, I lost all electrical power( no accessories, none),I have 12.67 volts to the starter and alternator, fuse links to this components checked good. is there some kind...

i have had same problems i can turn key on radio works and everything else i have found that problem with mine to be a short ground out from the main power lead from the battery to the starter that was shorting it out until i moved it around and found it

Apr 19, 2009 | 1996 GMC Sonoma

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Sonoma,check engine light doesnt turn on

dont worry about it ,perhaps the bulb has blown ,if car runs ok leave well alone

Mar 20, 2009 | 1996 GMC Sonoma

1 Answer

2003 Sonoma does not turn-over

U have lost the battery, check the cables, if they are clean (no corrsion) replace the battery, modern sealed batteries fail like this, crank fine and then puff nothing, happened to at least 5 times over the years and saw it all the time at work.

Jan 07, 2009 | 1999 GMC Sonoma

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