K1500 Wont stay Running??
February 2nd, 2011, 11:11 AM
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K1500 Wont stay Running??
My 1995 K1500 extended cab , had new plugs installed, wires checked, new distributor & rotor, new, idle control sensor, new throttle control sensor, fuel filter checked, and it still wont stay running, it just boggs out and finally shuts down. What should I check now??
February 2nd, 2011, 9:13 PM
#7
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boggs down and shut off when you hit the throttle or just idleing? did you check for codes?
I would say that if the fuel pump or exhaust was clogged it wouldnt stay running for a minute. But it could happen. A detached baffle in the cat or muffler could cause such a symptom as well as a clogged up sieve in the inlet to the fuel pump. Both would show up when you would hit the throttle. Well lets see what fuel pressure is.
I would say that if the fuel pump or exhaust was clogged it wouldnt stay running for a minute. But it could happen. A detached baffle in the cat or muffler could cause such a symptom as well as a clogged up sieve in the inlet to the fuel pump. Both would show up when you would hit the throttle. Well lets see what fuel pressure is.
Last edited by RacerX; February 2nd, 2011 at 9:17 PM.
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February 2nd, 2011, 10:05 PM
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I have seen over 50 GM trucks with the same symptom that was a restricted fuel filter. I have also seen the pump cause the same thing. A restricted fuel filter does not always show up on a fuel pressure test because it reduces volume. Sometimes it even makes the pressure higher (think like your thumb over the end of a garden hose, pressure goes up but volume goes down).
February 3rd, 2011, 8:31 AM
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yea I thought fuel filter first but I took it off, and could blow air throught it. The plug wires I did a visual check and same time felt each wire for cracks, I'll run the preassure check today. get that reading and have a new fuel filter ready to put on and I'll check it again. I'll get back here later today after I get through all this. Thanks and stay here dont go anywhere!!
February 3rd, 2011, 3:15 PM
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The preasure was 10+ with just the ignition switch on and was 10+ after I started the engine. I changed the fuel filter and it still does the same thing but I can keep it running as long as I keep working the gas pedal. I stopped at a garage and they said "maybe air flow that it doesnt know where to go" or clogged exhaust ot the MAF.