1987 Jeep Comanche Repair Question
Topics covered: Sensor, Fuel pressure, Fuel pump.
Mileage: 168 miles.
Mileage: 168 miles.
Asked on July 9, 2011
1987 jeep comanche weill not run
I have a 1987 Jeep Comanche Pioneer, 4.0 6cyl., 5 speed man, 4X4. I have replaced the following parts: fuel pump, map sensor, fuel regulator, TPS sensor, mat sensor, cam sensor, crank sensor, electronic igniter, all relays, ,ECM. It will start and idle, but if you accelerate it dies. Any ideas?
Asked by JCareyAnswer
Replied on July 9, 2011
It might be time to stop throwing parts at it and doing some diagnostic testing. I would start with the fuel pressure.
Replied on July 9, 2011
I think I have sufficient pressure because I replaced the fuel pump and added a second booster pump after the fuel filter.
Replied on July 9, 2011
No wonder you're having problems. What is the current fuel pressure?
Replied on July 9, 2011
I don't know, I don't have a gauge, but I replaced the regulator today. The booster pump is a 60 psi max, 31psi at idle.
Replied on July 9, 2011
I'm sorry. that's not the way we work. The vehicle requires a specific fuel pressure.