check engine light on ...but truck runs great

Asked by Nov 10, 2011 at 09:59 PM about the 1991 Isuzu Trooper 4 Dr S 4WD SUV

Question type: Maintenance & Repair

3 Answers

140

If your gas cap isn't screwed on tight, it can cause the check engine light to come on. I was also told by my mechanic that the sensor for the EGR valve on the Troopers is very sensitive. It can react even when there is no real problem with the EGR valve. But cleaning the EGR valve may minimize this problem. Chances are, the light will go out by itself after a few days. Mine did. Apparently it's not a huge emergency unless the check engine light begins to flash. Then it's time to get thee to a mechanic, pronto!

5 of 5 people found this helpful.
85

There is a manual reset behind the trooper dash gauges, you have to remove the guage cluster to get to it.

7 of 7 people found this helpful.

Am un Monterey din 1999care nu porneste..imi apare check engine..ce probleme sa aibe

Your Answer

Trooper

Looking for a Used Trooper in your area?

CarGurus has 54 nationwide Trooper listings starting at $2,100.

ZIP:

Isuzu Trooper Experts

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

Related Models For Sale

Used Isuzu Rodeo
193 listings starting at $1,500
Used Toyota 4Runner
335 Great Deals out of 29,410 listings starting at $1,500
Used Mitsubishi Montero
105 listings starting at $1,700
Used Toyota Land Cruiser
12 Great Deals out of 1,093 listings starting at $5,300
Used Jeep Cherokee
290 Great Deals out of 53,832 listings starting at $2,000
Used Nissan Pathfinder
475 Great Deals out of 23,578 listings starting at $2,495
Used Jeep Wrangler
362 Great Deals out of 20,473 listings starting at $2,500
Used Isuzu Amigo
8 listings

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.