my 94 silverado rund great but after about 10 min AT INTERSTATE SPEED IT SGTARTS TO BACKFIRE BUT WKLL HOLD ABOUT 55 IF I BABY THE GASPEDAL, IF I STEP ON GAS IT SPUTTER AND BACKFIRES, i changed cat to

Asked by flaco1500 Sep 26, 2015 at 01:48 AM about the 1994 Chevrolet C/K 1500

Question type: Maintenance & Repair

155k miles, no check engine light no codes. new cat new plug wires and cap and rotor

188,365

Paul answered 8 years ago

Check your crankshaft sensor and also give your throttle body a good cleaner, use a good cleaner such as CRC...

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flaco1500 answered 8 years ago

I will try that. Dont i need rebuild kit for throttle body as well. I figure those filter screens r probably crap also. Do u think sock on fuelpump may play a role? Willcheck cranksensor .

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221,015

Rowefast answered 8 years ago

Need to check fuel pressure at the TBI, it needs to be 9 to 12 lbs. and to be able to hold that pressure, not bleed off. Start by replacing the fuel filter, this can cause low pressure at the TBI.

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flaco1500 answered 8 years ago

im finding it hard to find info on crank sensor for my 94... I don't think it has one.. does it????

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221,015

Rowefast answered 8 years ago

No crank sensor, no cam shaft sensor, that started 1996 with the vortec motor.

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my 94 silverado rund great but after about 10 min AT INTERSTATE SPEED IT SGTARTS TO BACKFIRE BUT WKLL HOLD ABOUT 55 IF I BABY THE GASPEDAL, IF I STEP ON GAS IT SPUTTER AND BACKFIRES, i changed cat to 5 Answers

155k miles, no check engine light no codes. new cat new plug wires and cap and rotor

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my 94 silverado rund great but after about 10 min AT INTERSTATE SPEED IT SGTARTS TO BACKFIRE BUT WKLL HOLD ABOUT 55 IF I BABY THE GASPEDAL, IF I STEP ON GAS IT SPUTTER AND BACKFIRES, i changed cat to

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my 94 silverado rund great but after about 10 min AT INTERSTATE SPEED IT SGTARTS TO BACKFIRE BUT WKLL HOLD ABOUT 55 IF I BABY THE GASPEDAL, IF I STEP ON GAS IT SPUTTER AND BACKFIRES, i changed cat to

5 Answers

Your Answer:

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