Question about 1994 Chevrolet C1500
4.3 (Z) A/T TBI Starts after sitting for several days. Try to restart after reaching operating temp, it will not turn over, as if the battery is dead. After waiting ten minutes, turns over and starts. New cap, rotor, wires, plugs, EGR, fuel pump, and filter, and timing set within the past year. Any suggestions?
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Posted on Jan 02, 2017
sounds like you are loosing the fuel prime from somewhere ? Not sure if you have a lift pump on the side of the engine on that model or not? follow the fuel rails from the tank pump up, and see if it runs into a lift pump or straight to the injector pump. I would guess that you are loosing your prime, so check the line and see if you if they are wet cracked or bent. also when you changed the fuel filter did you happen to notice if the o-ring came off with the last filter or not? You may just have doubled your gasket on the filter. Sometimes they stick on the filter housing and become unnoticed.
Hope this helps.
Posted on Sep 05, 2009
Testimonial: "i think its a pump issue /but its a 07 old body style(no lift pump)had 04 that i unplugged pump on frame /it still ran from front tank/2 pumps???"
TO SAVE YOU TIME AND MONEY.HAVE TRUCK SCANNED TO SEE WHAT CAUSES SERVICE LIGHT TO COME ON.YOU CAN GO TO AUTO ZONE THEY WILL SCAN IT FOR FREE.BUT IT SOUND LIKE YOUR O2 SENSORS COULD BE BAD.
Posted on Apr 18, 2010
SOURCE: 95 s10 blazer 4.3
Your blazer has to have 55 psi or better to start and starting fluild is possible to flood the plugs now their too wet to fire. Sit awhile and they should dry on thier own. The injectores won't past fuel below about 40 PSI while cranking the voltage to the pump or the pump ground is going away (starters not grounded good enought and the ground goes positive as the car cranks. Put jumper cables from another running car and coonect them right at the starter ( at least the ground, connect it right o the case of the starter, Pos/ can be connected at the battery). sure your battery may be toast and still crank a good starter but the voltage below 10 while cranking may not close the fuel pump relay al or the ingtion module. I've had this problem and sometimes I've found the ingtion module bad and I had it tested at the store and they said it was good but as I sent it in to be tested they sent a new one anyway and the new module would run it and the tested good old one won't start the car. BUT. Everytime it goes back to the quaily of the fuel pump and I've bought a lot of bad ones for GM products that were made by Master and Airtex. I've never had a problem with a Delphi. As long as the crank voltage is good jump it to make sure and the pump wire while cranking is more than 11 volts and it still has less than 55 PSI you take the pump back get another one or demand the delphi, and if they want you to put in another aixtex ask them to pay you to put it in. Bet you'll get the Delphi. The return level is high on the Airtex and Master pumps is high and the parts guy your buying from knowns this unless he's still wet behind the ears, and plain just does'nt know. Orginal equipment in this area keeps the comebacks away and I'm a pro. unless the customer makes me put in the junk pump I don't even give them a choice.
Posted on Sep 23, 2010
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