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1990 GMC Truck Repair Question


Topics covered: Spark, Distributor, Engine.
Mileage: No information provided.

Asked on February 19, 2010

1990 GMC Truck won't restart

1990 GMC Truck V8 Four Wheel Drive Manual 120000 miles

It has only slight hesitation starting first thing in the morning but after warming up it won't restart until engine cools. The engine will crank just fine but won't turn over. If i leave it still at work all day then it restarts just fine. I just can't move it within a couple hours. I've put heet, fuel injector cleaners, and new gas in the tank. I've replaced the fuel filter, spark plugs, and spark plug wires. Someone told me try the distributor.
Avatar Asked by mocarpenter

Answer

Replied on February 19, 2010

Could be one of the electronic items in the distributor(pick-up coil or ignition module). Have you checked to see if it has spark when it wont start?

Tiny Answered by 2CarPros Jack (expert)
12,033 answers provided
Replied on February 19, 2010

How do I check for spark?

Tiny Response from mocarpenter
1 question asked
Replied on February 19, 2010

Use a spark tester so you dont get shocked.They are cheap and available at auto parts stores. Test for spark out of coil and out of distributor

Tiny Answered by 2CarPros Jack (expert)
12,033 answers provided