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1988 Isuzu Trooper Cutting out and lose of power

Tiny
REMBREY
  • MEMBER
  • 1988 ISUZU TROOPER
Engine Performance problem
1988 Isuzu Trooper 4 cyl Four Wheel Drive Manual

I have a Isuzu Trooper that loses power and cuts out real bad at about 2500 rpm. Runs fine and idles fine below that. I have replaced the O2 senser, distributor cap, rotor cap, plugs, plug wires, fuel pump, fuel filter and coil. Can you give me some ideas on what to look at next?

Thanks,
Rob
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Tuesday, October 6th, 2009 AT 4:03 PM

4 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Check the crank and cam position sensors, and mass airflow sensor.
Thanx
joe
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Tuesday, October 6th, 2009 AT 11:37 PM
Tiny
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Is there a way to test those sensors? Continuity test or voltage testing of some sort?
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Wednesday, October 7th, 2009 AT 9:15 AM
Tiny
LEGITIMATE007
  • MECHANIC
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Continuity is how we usually like to test them. It sounds like you know how to test them?
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Friday, October 23rd, 2009 AT 4:49 PM
Tiny
LEGITIMATE007
  • MECHANIC
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The mass airflow sensor may just need a good cleaning, I would try that first, then check each of them with a multimeter.
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Friday, October 23rd, 2009 AT 4:58 PM

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