No spark

100

Asked by 91fireformula 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!!!!!

6 Answers

6,400

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.

3 people found this helpful.
100

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.

3 people found this helpful.
60

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.

6 people found this helpful.
70

I have a 1981 Pontiac Firebird change coil change the plugs change ignition and still no spark no start

7 people found this helpful.

i have a 84 firebird 305 engine ive replaced cap ,rotor, ignition module ,and replaced wires on inside of distributor and i replaced coil nd im getting spark from my ignition to distributor what is wrong i even reset the timing i pulled dist and reinstalled it when i was on number 1

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