1986 Nissan Truck Engine

Tiny
QUAYLT
  • MEMBER
  • 1986 NISSAN TRUCK
  • 4 CYL
  • 2WD
  • MANUAL
  • 132,000 MILES
Truck runs rough like it is missing. I changed the spark plugs and wires a month ago. It just started doing this a few days ago.
Tuesday, August 31st, 2010 AT 9:18 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.
10. Throttle position sensor.
11. Idle air control valve.
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Saturday, September 4th, 2010 AT 6:39 AM

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