Question about 1993 Chevrolet K1500

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Truck stumbles just off idle

1993 K1500 it stumbles just off idle already changed plugs,wires cap rotor tps sensor.air and fuel filter the only thing that i have inticed is the injectors pulse but does not spray good and they dribble some at idle but it idles smooth . and runs good other than that

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  • lexusanders Feb 09, 2009

    i have the same problem mine is a 92 and when i start it it bobbles bad it just wont idle consistently but after a minit it jumps to normal idle and runs great i need help what is the problem

  • Anonymous Mar 30, 2014

    truck dies after a few minutes of idling

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Your problem is probably going to be the egr valve. in is mounted on your intake next to your coil behind the tbi unit. it looks a little like a pancake flat adn round and it has one vacuum line going to it. pull that vacuum line from the valve and see if it still stumbles. This valve will stick and wont allow exhaust gas to recirculate into the intake which causes the engine to stumble. Good luck!

Posted on Mar 30, 2009

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May need to have a fuel injection service,but when i worked at chevrolet i believe those year trucks were having a problem with the throttle body sticking

Posted on Nov 14, 2008

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