Question about 1990 Isuzu Trooper

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My 1990 trooper izusu all of a sudden started losing speed one of the spark plug wires was completely burned before i changed them the trooper is still losing speed why please help

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I had the same thing happen to my trooper it started losing power I had to cut out the cateyletic converter and when I did it ran perfect but it was very loud but I only drove it to Darryl's Mufflers he put a new one on she ran like a champ it started to plug up or it could be the timing belt slipped a little, jumped a tooth it would still run depends on how many teeth that it jumped the more teeth it jumps the more it will loose power fast and eventually start missing and back firing and start being hard to start or it jumps to far out of time it will not start at all it will just turn over. If it breaks it will turn over fast and not fire at all. Hope this solves your problem its 2 problems that I know will make your trooper lose power and speed if this does not sound like the problem then call Affordable Battery & Auto Care and ask for Jed let him know Jeff referred you to him and he will look it up and help you diagnosis your problem. Call 503-477-9631 he is really good and he is affordable.

Posted on Feb 10, 2013

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6 Suggested Answers

6ya6ya

6ya staff

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Posted on Jan 02, 2017

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agent91

Ned White

  • 2100 Answers

SOURCE: 93 Izusu Transmission problem

I had the same problem, picked up a new computer for the tranny, I think it's under the seat, works fine.

Posted on Jan 29, 2009

mike raines

  • 120 Answers

SOURCE: 92 Trooper Spits and sputters

sounds like it needs a good tune up or mass air flow

Posted on Feb 27, 2009

Anonymous

  • 837 Answers

SOURCE: 94 Trooper will not start

clean all the connections at the battery and the starter .. also be sure that the ground (black) side is clean ..

Posted on Feb 28, 2009

emissionwiz

Marvin

  • 85222 Answers

SOURCE: lost of power under load(misfire)

In most cases that would be the plug wires, if u do them youreself do one wire at a time and route them correctly, replace any plastic cable clips they snap in to, do this and u will have a quality job that will cure your problem for years, if the plugs are more than 60 miles old change them as well, use the same plugs as the factory used, don't use Autolite..

Posted on Mar 01, 2009

Anonymous

  • 1 Answer

SOURCE: NO POWER WHEN DRIVING

Fixed problem it was the ignition coil, now it runs very smoothly! thanks to all that helped
Jon.

Posted on Mar 17, 2009

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