87 Sierra 4x4 Fuel Injector Pod issue - The 1947 - Present Chevrolet & GMC Truck Message Board Network

sandorjoben · 08-01-2010, 04:25 PM

Dear everyone,

I just finished posting my introduction thread in another part of the forum and surprise... I have a question. I just purchased a 1987 sierra 4x4, the engine is a TBI 350(I believe), I'm doing some other safety certification work(brakes, etc.) on the truck and left the vehicle for a week and now the Injector pod sprays no fuel when turned over, I can hear the fuel pump cycle when I turn the ignition key, and it started a week ago with no problems. Any ideas?

Dave

Big Port Jimmy 6 · 08-01-2010, 05:50 PM

Dave check the injector plugs for power. They should have power with ignition on. the ECM controls the ground to fire the injector. You may be able to find a noid light. http://www.sjdiscounttools.com/otc7187.html It will check both the power and the ecm function. It will flash as the injector cycles. Jay

sandorjoben · 08-01-2010, 07:20 PM

I have discovered that I'm a bit of a dumb-dumb, found a shut off switch that one of the previous owners must have added, I threw the switch a few times last week and left it in the off position, went camping, then forgot about the switch until, now. Thanks for the help though.

Dave

Admin can delete this thread at their leisure

08-01-2010, 04:25 PM	#1
sandorjoben Registered User Join Date: Jul 2010 Location: Niagara, Ontario Posts: 87	87 Sierra 4x4 Fuel Injector Pod issue Dear everyone, I just finished posting my introduction thread in another part of the forum and surprise... I have a question. I just purchased a 1987 sierra 4x4, the engine is a TBI 350(I believe), I'm doing some other safety certification work(brakes, etc.) on the truck and left the vehicle for a week and now the Injector pod sprays no fuel when turned over, I can hear the fuel pump cycle when I turn the ignition key, and it started a week ago with no problems. Any ideas? Dave

08-01-2010, 05:50 PM	#2
Big Port Jimmy 6 Addicted to Rust Join Date: Dec 2009 Location: Abbeville SC Posts: 1,030	Re: 87 Sierra 4x4 Fuel Injector Pod issue Dave check the injector plugs for power. They should have power with ignition on. the ECM controls the ground to fire the injector. You may be able to find a noid light. http://www.sjdiscounttools.com/otc7187.html It will check both the power and the ecm function. It will flash as the injector cycles. Jay __________________ Current trucks: (48 GMC100 320 inliner) Gone (48 Suburban in pieces) Sold 87 GMC CCSB 5.3 4l60E Daily Driver ECTA National record holder XO/PP We never really grow up, we just learn how to act in public.

08-01-2010, 07:20 PM	#3
sandorjoben Registered User Join Date: Jul 2010 Location: Niagara, Ontario Posts: 87	Re: 87 Sierra 4x4 Fuel Injector Pod issue I have discovered that I'm a bit of a dumb-dumb, found a shut off switch that one of the previous owners must have added, I threw the switch a few times last week and left it in the off position, went camping, then forgot about the switch until, now. Thanks for the help though. Dave Admin can delete this thread at their leisure Last edited by sandorjoben; 08-01-2010 at 07:21 PM.



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