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Re: Does a GM oil pressure switch serve as a fuel cutoff ?
Ok I have 1994 gmc jimmy 4.3 vortec,.ran off road n down hill, truck wouldnt start sfter cuz fuel pump wouldnt engage, I traced connection and read YES oprs WILLNOT allow power to pump if in accident, I jumped the pins and voila pump sparked to life, I bought n installed new switch and pump now runs, now problem is spider Injectors not sending fuel and yes ive got 60 pounds at schrader valve. Vehicle will only run for short time on ether.
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