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07-12-2006, 10:40 AM
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#1 |
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Registered User
Join Date: Sep 2005
Location: Wyandotte, Michigan
Posts: 24
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1990 GMC Sierra 1500
I bought this truck last fall for 750 bucks and it ran strong, but then I had trouble getting it restarted. It would usually start up first try, but eventually it woulden't start at all. I know it's electrical, and I'm getting fuel. It just cranks and cranks but wont fire. I'm thinking Ignition module, but I need some feedback from anyone who's had similar problems...help
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07-12-2006, 09:57 PM
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#2 |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,621
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Re: 1990 GMC Sierra 1500
The computer needs to receive a distributor reference pulse from the distributor module to trigger the injectors.
If by getting fuel you mean, the injectors are spraying fuel, then the ECM is getting a signal from the module. This does not mean the module is good. but it does mean the pickup coil in the distributor is working. Possibilities: Ignition coil, Coil wire Distributor (ignition) module Distributor cap, Distributor rotor |
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07-12-2006, 10:07 PM
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#3 |
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Designated A-hole!
Join Date: Mar 2003
Location: South Mississippi
Posts: 36,455
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Re: 1990 GMC Sierra 1500
Can they test the module like on the earlier HEI's?
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07-12-2006, 10:27 PM
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#4 | |
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Registered User
Join Date: May 2004
Location: Minnesota
Posts: 4,621
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Re: 1990 GMC Sierra 1500
Quote:
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