Truck starts, idles high, then dies

65

Asked by May 22, 2014 at 08:34 AM about the 1994 Chevrolet C/K 3500 Cheyenne Crew Cab LB RWD

Question type: Maintenance & Repair

Hi John! I'm hoping to get your sound advice and recommendations regarding my
issue. I have a '94 Chevy C3500 with the 7.4L motor. It was running fine until, one day,
I stomped on it and noticed that it hiccuped. When I got home, I changed the plugs,
wires, cap and rotor. When I tried to start it up after these changes, it wouldn't
immediately start. When it does start (it tries to turn over a few times), the idle jumps
to over 1,000RPM and then it dies out. Also, I noticed that the fuel pump is louder than
it's ever been. Please help me. Thank you.

1 Answer

35

Fuel pump

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