Jeep sport backfire and sputtering

Tiny
RICKUS1
  • MEMBER
  • 1996 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • MANUAL
  • 187,000 MILES
My 96 jeep will backfire and sputter with no exceleration on pedal untill floored, or I can turn ignition off then back on and it runs normal for a little while, ive changed coil, pvc elbow, wires and plugs, distributer, and gas filter there is no cat converter
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Sunday, July 24th, 2011 AT 8:39 PM

2 Replies

Tiny
RASMATAZ
  • MEMBER
Do you have a check engine light?

Check the fuel pressure with a gauge if its within specs-if okay

Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
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Sunday, July 24th, 2011 AT 10:02 PM
Tiny
RICKUS1
  • MEMBER
Thanks for helping no the check engine light only comes on when starting no cat converter or oxygn sensor, I took it to orilys and computer said oxygen sensor and had another person test it and his said throttle position sensor, new cap aand rotor I drove it from toledo to indy and no problems, new fuel filter, coil plugs and wires, pvc valve its bad now but befor I could turn it off and on while driving and it would work right, or when it starts acting up I can floor it and it runs, it was ideling fine but now it stalls sometime and backfires
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Monday, August 22nd, 2011 AT 1:49 AM

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