Question about 1995 GMC Sonoma

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91 sonoma 4 cyl has no spark

Has no spark, getting gas, coil tested good, fueses good, was told to remove and check module inside distributer and if its good, not sure wear to look next need suggestions!!! also ignition switch good woman that olnly knows so much and would appreciate some help

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Ok now i really have it fixed..turns out that i some how disconnected the main vacum hose. now running like a charm go figure! thanks for all the input

Posted on Feb 20, 2009

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Ok..after starting with fuses then cap and turns out the 5 month old rotor was fried!! so problemo fixed.. thanks for suggestions. and to my mechanic friend who told me to start from scratch!

Posted on Feb 18, 2009

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1996 Sonoma Problem

Not sure. You need to do a little checking of ignition and fuel delivery. I would first check for spark at all four cylinders to eliminate or verify if ignition is causing it. If you have distributorless ignition, you have 2 coils. One coil serves cylinder 1 and 4, the other coil serves cylinders 2 and 3. If for instance, you have weak or no spark on 1 and 4, suspect the coil for them.
If you have good spark on all four, a bright blue, snapping spark, then pull the spark plugs to check they are not fouled, like oil fouled that prevents spark..
If ignition is good, look to the fuel system.
Maybe an injector is blocked open by debris and won't close. That's very rare, but a possibility. The spark plug for that cylinder would likely be much wetter than the other plugs after cranking it over. Maybe the fuel pressure regulator has failed. If you can find the fpr on top of engine (some are located under the intake manifold, hard to get to. and some are fitted to the pump in the gas tank-impossible to inspect) then pull off the vacuum line to it and check for evidence of gas there-a sure sign of a ruptured regulator, and it will let extra gas get sucked into the engine-just like your problem. If you can't find the pressure regulator, you should have the fuel pressure tested-mainly to see if it is too high-also a pressure regulator problem,. likely.
IDK, maybe this will help you a little, good luck.

Dec 20, 2012 | 1996 GMC Sonoma

1 Answer

1995 gmc sonoma has no power to ignition control module or coils there for has no spark

Since you said coils, I will assume you have a 4 cyl engine. The V6 models use a distributor.
The pink wire which powers the module as well as the injectors is from a 20amp fuse number 10. It is supposed to be hot in the On position.
If you have no power there with the key on, check the key switch.

Aug 24, 2012 | 1995 GMC Sonoma

1 Answer

I have a 1992 gmc sonoma and it starts fine when its cold and runs good but when it warms up it dies and wont stay running and sometimes wont start till it sits for 15 20 min

sounds like a bad ignition module check for spark when it dies if you do not have spark at plugs check between coil and coil wire if still no spark most likely module it is under rear of distributer cap resembles a black wafer board with two electrical plugs

Mar 25, 2012 | 1992 GMC Sonoma

2 Answers

91 jeep no spark

wd 40 your flywheel sensor plug

Sep 02, 2009 | 1996 Jeep Grand Cherokee

1 Answer

Car just stopped running. Lost power suddenly.

Find an inductive pickup indicator for spark. Place on distributor cap to see if spark is at coil internal tower. If no spark at internal tower, look at ignition module or pickup coil. Ignition modules are prone to failure on 626's. But if you have spark at tower but not at the wire end, then your rotor is gone.

Aug 18, 2009 | 1993 Mazda 626

2 Answers

93 ford probe no spark,gets gas,checked compression replaced cap

you should check power at each one to verify that they have power, which engine do you have 4 or 6 cyl? the 4cyl the coil is seperate from the distributor and the module is located on the side of the distributor, the 6cyl it is all inside the distributor, but to replace parts without verifing power is not cost effective. The most common ignition failure is the ignition module, but you still need to verify that it receives power.

May 18, 2009 | 1993 Ford Probe

1 Answer

91 hyundai excel with no spark from coil

If it has a dizzy then you need to check the ignition module, these are normally mounted inside the distributor. 

Apr 07, 2009 | 1991 Hyundai Excel 4 Door

2 Answers

1993 Chevy Cavalier 2.2 not firing on 2 cylinders

you can test it but removing wires on the coil. they should have same strength as 1 and 4. if they are weaker then you have a bad coil. if nothing happens your have a bad module.
if you want put the 1,4 coil on the suspected bad tabs on the module and see if spark is same strength.that should do it. you pretty much did the right thing is swaping with what testing equipment you have to work with.
its most likely a bad module though. very common. when you test something always have someone explain how its tested and how it works.

ASE certified

Jan 24, 2009 | 1993 Chevrolet Cavalier

1 Answer

Dead cylinders 2003 sebring

it sounds like you may have the wires on the wrong coil. It should be #1 on the #4 coil, and the #3 wire on the #2 coil. you probably have them backwards so 1 and 3 are firing on the exhaust stroke.
the firing order is 1-3-4-2.
they should be hooked like this.


Jan 23, 2009 | 2003 Chrysler Sebring

1 Answer

1995 Monreto sport

please try checking the contiunity of the ignition cable (spark plug cable) and the spark plug itself, if ok check the distribution cap and rotor for the contacts, good luck

Aug 02, 2008 | 1994 Mitsubishi Montero

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