My 89 Trooper 2.6L 4 cyl has 159,000 miles on it. It runs great but after it warms up and I stop at intersections, the engine idles up and down between 1500 and 2000 rpms. Any ideas?
Several things can cause loping like that. egr valve stuck, timing, vacuum leak
Search Isuzu Trooper Questions
Isuzu Trooper Experts
Related Models For Sale