SPONSORED LINKS

88 Nissan PU hesitate/stumble

Tiny
HAMRNTONG
  • MEMBER
  • 1988 NISSAN HARDBODY
  • 4 CYL
  • 4WD
  • MANUAL
  • 180 MILES
88 Nissan Pickup XE, Z24i, 5 spd, 4X4, 180k miles.
Starts ok but with slight hesitate/stumble during idle and at speed. Pronounced smell of exhaust but no smoke. Really struggles to restart as though starved or flooded after short trip to store (1 minute away) before engine is completely warmed up. Restarts aren't as labored after engine is fully hot, but still has slight stumble at all speeds.

Replaced fuel filter, In/Ex coils, vacuum lines, cleaned/gapped plugs.

SPONSORED LINKS
Thursday, August 11th, 2011 AT 9:50 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
https://www.2carpros.com/articles/engine-hesitates and https://www.2carpros.com/topics/engine-performance/hesitates

Could be one of the following below -check and test:

Oxygen sensors.
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.
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.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Thursday, August 11th, 2011 AT 11:35 AM

Please login or register to post a reply.

Related Engine Hesitate Content

Vacuum Leak Test and Repair
VIDEO
Vacuum Leak Test and Repair
Instructional repair video
Hesitation
GUIDE
Hesitation
An engine hesitation is an interruption of continuous power during acceleration. When a engine is hesitating it will cause the car to lunge or surge which will cause a...
VIEW MORE

Sponsored links