No spark

40

Asked by May 28, 2013 at 06:57 PM about the 1991 Pontiac Firebird Formula

Question type: Maintenance & Repair

I drive my car for 6 months. I came
home one day and went inside n20
minutes later I come out and the car
would crank but not fire. Ive since
learned I have no spark to the spark
plugs but I do have fuel to them. Ive
replaced the ignition coil, plug wires,
and ignition module. I have NO idea
what else it could be. HELP!!!!!

3 Answers

3,210

Get yourself a spark tester and start testing. Work your way back from the plugs to the distributor cap. Open up the cap and check it and the rotor for corrosion. Get a DVOM and test the crank position sensor.

1 out of 1 people think this is helpful.
40

The plugs are good but no spark. Tested the coil and cap and there is power to the distributor. When I replaced the module the rotors were Fine and the distributor was clean.

1 out of 1 people think this is helpful.

The security system has locked up if you have no spark and everything else is good. Unplug the battery for a long time one day(s) or tow to dealership to have vehicle's computer reset.

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