blows fuel pumps - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JBARTGMC-10 · 07-27-2004, 10:48 PM

we have a 95 s-10 blazer the has a 4.3 engine. It keeps blowing fuel pumps. Won't start if the motor is warm then finally just quits starting. Any ideas?

RodeRash · 07-29-2004, 10:15 AM

It the pump cannot reach the minimum required pressure (I think it is around 56 psi), there is a check valve that will not let any fuel to the engine.
If you keep having problems with the pump, (starting at the battery) I would check the electrical system. Low voltage (or amperage) could be causing performance problems with the pump.
Try jump starting your truck the next time it happens. (the extra battery power may make a difference)

07-27-2004, 10:48 PM	#1
JBARTGMC-10 Registered User Join Date: Feb 2003 Location: JENKS OK Posts: 34	blows fuel pumps we have a 95 s-10 blazer the has a 4.3 engine. It keeps blowing fuel pumps. Won't start if the motor is warm then finally just quits starting. Any ideas?

07-29-2004, 10:15 AM	#2
RodeRash Registered User Join Date: Jul 2004 Location: Northern Colorado Posts: 6	It the pump cannot reach the minimum required pressure (I think it is around 56 psi), there is a check valve that will not let any fuel to the engine. If you keep having problems with the pump, (starting at the battery) I would check the electrical system. Low voltage (or amperage) could be causing performance problems with the pump. Try jump starting your truck the next time it happens. (the extra battery power may make a difference)



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