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1996 Chevy Monte Carlo random/multiple cylinder misfire

Tiny
GANJAMANJA
  • MEMBER
  • 1996 CHEVROLET MONTE CARLO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 202,000 MILES
The code reader read a random/multiple cylinder misfire. I replaced the crankshaft position sensor, fuel filter, and the idle air control sensor and the car is still surging. What do I do?
Sunday, October 3rd, 2010 AT 7:50 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Misfiring can be cause by the following:

1. Defective spark plug
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.
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Sunday, October 3rd, 2010 AT 7:53 PM

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