1998 Chevy Astro missing fire

Tiny
JACQUES1998
  • MEMBER
  • 1998 CHEVROLET ASTRO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 250,000 MILES
I buy a chevy astro 1998 last mount I drove it for a while with no prolem unless some miss fire on the hyway last week my check engine come on so I rent to a shop repair and the mecanic do some test code mutiple miss fire (fuel pump pressure and some) and everything\r\nwas ok so mecanic tell me that I need a tune-up I came back to my home and do the tune-up (spark plug wires dist cap rotor and ignition coil)after that nothing better rough idle engine stop at light fire missing on the hyway
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Thursday, June 3rd, 2010 AT 9:50 AM

1 Reply

Tiny
RASMATAZ
  • MEMBER
Engine running rough or misfiring can be cause by the following-inspect and test all the following below:
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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Friday, June 4th, 2010 AT 2:33 AM

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