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Tims Auto Repair
Tims Auto Repair, GMC Mechanic
Category: GMC
Satisfied Customers: 15465
Experience:  have owned a repair shop for 25 years
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I have a 91 Sonoma that won't start without starting fluid

Customer Question

I have a 91 Sonoma that won't start without starting fluid and then it runs fine - never misses a beat. My mechanic replaced the ignition coil,cap & rotor, fuel filter, fuel pump, fuel pressure regulator diaphragm, coolant temp sensor and injector. Nothing helped and he gave up. What could the problem be?
Submitted: 1 year ago.
Category: GMC
Expert:  Tims Auto Repair replied 1 year ago.

Hi, My name is ***** ***** for the delay.

I will do my best to assist you

this sounds as if you have a bad ignition module

Expert:  Tims Auto Repair replied 1 year ago.

what is going on is that the starter is pulling amps away from the bad ignition module

Expert:  Tims Auto Repair replied 1 year ago.

thus,killing the fuel injector pulse

Expert:  Tims Auto Repair replied 1 year ago.

it will still have a spark when they do this but the fuel injectors wont work while the starter is turning

Expert:  Tims Auto Repair replied 1 year ago.

this is why it will start with a prime

Expert:  Tims Auto Repair replied 1 year ago.

replace the ignition module

thanks

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