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1988 Mazda B2200 running rough

Tiny
GRAEME72
  • MEMBER
  • 1988 MAZDA B2200
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 354,000 MILES
My truck runs rough, it backfires and stutters on hills and will die, I have changed wires, plugs, air and oil filter, I do not know where fuel filter is, I suspect this may be the issue but I am not a mechanic. What do u think the problem is, also on start up I need to sit in the truck and keep the revs up until it warms up or it will die, pls help
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Monday, February 22nd, 2010 AT 4:50 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Engine running rough or 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.
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Monday, February 22nd, 2010 AT 6:45 PM

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