Need help ASAP 94 Isuzu trooper very low power and only 5 mpg

Asked by Mar 31, 2017 at 03:27 PM about the 1994 Isuzu Trooper 4 Dr LS 4WD SUV

Question type: Maintenance & Repair

Okay so I have a 94 Isuzu trooper 3.2 dohc
that I just bought and me and my father
got very short notice about a job so we're
on the way to Idaho from Louisiana, the
vehicle idles at about 800 rpm but jumps to
900-1000 and then back down, it has very
little power and is having a lot of trouble
going up inclines and you have to pretty
much keep it on the floor to keep it at 75
on the freeway, it keeps shifting from 5th
back down to 4th, and is only getting
5mpg, since I bought it I have replaced the
spark plugs and wires, changed the oil and
fuel filter and cleaned the egr valve, I have
also noticed there is power steering fluid
on the alternator which in a couple cases I
have read that could cause these issues
but do not see how that's possible, please
anybody if you have any suggestions let
me know, need to have this fixed ASAP so
we don't get stranded somewhere hours
from home on the side of the freeway

6 Answers

22,045

Maybe your cat are clogged up.

96,035

Check the converter and tune it up but I suspect it is running really rich from a leaking injector.

96,035

Check the compression.

Is there any way you can tell without having to take the cat off?

96,035

Yes, there are several ways to check the converter. This is one but do an internet and youtube search for more info ------ https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Okay thanks I'll give it a try

Your Answer

Trooper

Looking for a Used Trooper in your area?

CarGurus has 1 nationwide Trooper listings and the tools to find you a great deal.

Postal Code:

Isuzu Trooper Experts

  • #1
    N8dogg
    Reputation
    750
  • #2
    tennisshoes
    Reputation
    470
  • #3
    DerekW85
    Reputation
    210
View All

Related Models For Sale

Used Isuzu Rodeo
1 listing
Used Toyota 4Runner
3 Great Deals out of 525 listings starting at $5,995
Used Toyota Land Cruiser
1 listings starting at $66,900
Used Jeep Cherokee
89 Great Deals out of 7,353 listings starting at $12,487
Used Nissan Pathfinder
23 Great Deals out of 1,354 listings starting at $3,888
Used Jeep Grand Cherokee
138 Great Deals out of 3,894 listings starting at $3,499
Used Toyota Tacoma
33 Great Deals out of 1,339 listings starting at $4,995
Used Jeep Wrangler
111 Great Deals out of 2,188 listings starting at $6,998
Used Chevrolet Tahoe
5 Great Deals out of 988 listings starting at $7,600

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.