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1995 Nissan Truck hesitation upon a cold start

Tiny
GOUKI
  • MEMBER
  • 1995 NISSAN TRUCK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 91,000 MILES
I have a problem where my truck on damp mornings the engine hesitates, misses, bucks and fluctuates in revs between 1000 and 2000. At idle it appears fine but as soon as you step on the accelerator problem is back. It does it in the mornings specialy when its damp. Once it warms up, it works fine for the rest of the day. If you put the truck in neutral it revs fine place it back in drive and the problem is there. It does not do it all the time
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Wednesday, June 9th, 2010 AT 12:18 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
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.
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Wednesday, June 9th, 2010 AT 1:32 PM

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