Having problems with your 1987 Pontiac Fiero ?

I have a 1987 pontiac fiero v6...it starts fine in the morning or at night but on hot sunny or muggy days it will make a whinning noise and now it wont start it will just crank...unless its in the morning or at night..

Posted / edited by AnonymousUser on : 24-06-2019

Answers :

During the time of the day that it won't start, try checking for spark to the spark plugs. Pull one of the wires and shove a screwdriver in it and place it about an 1/8 of an inch away from the engine to see if it sparks while someone cranks the engine.

If it doesn't spark then you definitely have a problem in the ignition system and it'll more than likely be a bad ignition module that controls the spark. You can take the part to Autozone and they'll check it out for you for free. These things tend to go bad sometimes and it'll just stop working sometimes due to heat. If that one checks out then you may have an issue with the pickup coil in the distributor.

One other thing to try is to pull the distributor cap and spray the inside of it with some WD-40. Could be you have moisture creeping in keeping it from starting but that is highly unlikely.
Think you mite have vapor lock in the fuel system-if its a maechanical pump-go to the auto zone or shlep boys there are some remedies viva gov motors
Repair Help & Product Troubleshooting for 1987 Pontiac Fiero

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