1991 Jeep Wrangler Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 1991 Jeep Wrangler
1991 Jeep Wrangler Problems
The throttle position sensor (TPS) may fail causing intermittent drivability problems like hard starting, stalling, and/or hesitation when accelerating. A failed TPS will require replacement, proper diagnoses should always be performed before replacing any parts.
A ticking type noise may be noted from the engine area due to an exhaust manifold that has cracked where the pipes are welded; cracked manifolds should be replaced.
1991 Jeep Wrangler Questions
this started after someone try to tune it up and it has drop gas mileage
155000 miles, ran fine until it started too backfire when driving and now hard starting. changed fuel filter, and new spark plugs,wires,rotor and cap.
I have a 1991 Jeep Wrangler 4cycl. I am having problems getting it to start. The engine does turn over. I change out the fuel pump and bought a new battery. I also checked the sparks plugs and wires, all have spark. I sprayed started fluid in the carburator, it does start but kills. Any ideas wha...
1991 Jeep Wrangler Recalls
1991 Jeep Wrangler Reviews
I bought my 1991 new almost 20 yrs ago. Drove it all through 48 states, Mexico, and alot of Canada. For the last fifteen years I have used it on Catalina Island dirt roads only. No engine problems still. So I have begun to give the old dude a major overhaul to thank it for all those crazy road trips and harsh driving conditions. Pulled it in to the garage last weekend and I am figuring out all...
jeep will not start no power to the coil will roll over fine was always hard to start now it won't start at all please help
What can I say? It's a Jeep and the short wheelbase makes for a stiff ride. I LOVE the torque from the 4.0L HO engine but it eats gas like it's going out of style. Oil leaks everywhere mostly fixed now... valve cover gasket, pinion seals, diff covers, transmission oil pan gasket, and oil cooler lines. After test driving some soft tops I'm really happy with the hard top, it's much quieter and se...