DezertTitan
NAXJA Forum User
- Location
- Hesperia, CA
Lots of threads regarding rough idle & bad running jeeps. None that I've read seem to describe what I'm experiencing.
I have an '87 Cherokee "Laredo", 4.0 5spd. Sat for 5 years in the desert before Some work was done to get it running again, then the jeep was sold to me because the guy didn't want to pay back fees for registration.
The engine idles fine. At low RPMs/idle if i punch the throttle it will hesitate & stutter/choke for a less than a second before revving up. Otherwise, there are no problems what so ever. I don't have to baby it, i just can't punch it.
Saturday i was finally able to drive it. Back-registration was all caught up & was taking it to the smog shop to take care of that so I could get brand new tags. I noticed that when coming off a stop sign at low RPM, the jeep would start to bog down. Push the clutch in, throttle up to around 3k RPM & it takes off no problem. I don't have a tac so i can't say for sure, but I'd call it around or less than 2k RPM is when it bogs out under load.
Another thing - if i was cruising down the road (again, around 1.2-2k rpm) and started climbing a hill, start to give it more throttle for the climb - it'd start to cut out and run rough. Ofcourse at this point i down shift, get my RPMs up & get past it.
I just replaced the spark plugs (Champion Platinum), plug wires look new, cap & rotor are in great shape (look new), the fuel injectors Look new, air filter is clean. My fuel gauge reads 1/4 tank, sometimes bumps to 1/2 tank briefly - regardless of how much fuel I have (as i found out saturday morning after running to the gas station). I don't know if this may be part of the problem, tho i doubt it. I don't believe the fuel pump is an issue, if it were I'd imagine I'd have problems @ high rpm, and not Only with hard throttle @ low RPM.
Could this be caused by a faulty sensor, or bad pressure? I already have to pull the fuel pump/sender/regulator to replace the gasket on the tank (since i also found it leaks right there when i fill the tank, thus insta-failing the smog check). If this is the fuel pump & i need to replace it, great! I'll do that all at once rather than going back to do it again, if not..... Crap! Lol I'm not real sure where to go with this.
This Is a toy vehicle, not a DD. Won't kill me if I can't fix this in one day. Sorry so long winded, and thanks reading!
I have an '87 Cherokee "Laredo", 4.0 5spd. Sat for 5 years in the desert before Some work was done to get it running again, then the jeep was sold to me because the guy didn't want to pay back fees for registration.
The engine idles fine. At low RPMs/idle if i punch the throttle it will hesitate & stutter/choke for a less than a second before revving up. Otherwise, there are no problems what so ever. I don't have to baby it, i just can't punch it.
Saturday i was finally able to drive it. Back-registration was all caught up & was taking it to the smog shop to take care of that so I could get brand new tags. I noticed that when coming off a stop sign at low RPM, the jeep would start to bog down. Push the clutch in, throttle up to around 3k RPM & it takes off no problem. I don't have a tac so i can't say for sure, but I'd call it around or less than 2k RPM is when it bogs out under load.
Another thing - if i was cruising down the road (again, around 1.2-2k rpm) and started climbing a hill, start to give it more throttle for the climb - it'd start to cut out and run rough. Ofcourse at this point i down shift, get my RPMs up & get past it.
I just replaced the spark plugs (Champion Platinum), plug wires look new, cap & rotor are in great shape (look new), the fuel injectors Look new, air filter is clean. My fuel gauge reads 1/4 tank, sometimes bumps to 1/2 tank briefly - regardless of how much fuel I have (as i found out saturday morning after running to the gas station). I don't know if this may be part of the problem, tho i doubt it. I don't believe the fuel pump is an issue, if it were I'd imagine I'd have problems @ high rpm, and not Only with hard throttle @ low RPM.
Could this be caused by a faulty sensor, or bad pressure? I already have to pull the fuel pump/sender/regulator to replace the gasket on the tank (since i also found it leaks right there when i fill the tank, thus insta-failing the smog check). If this is the fuel pump & i need to replace it, great! I'll do that all at once rather than going back to do it again, if not..... Crap! Lol I'm not real sure where to go with this.
This Is a toy vehicle, not a DD. Won't kill me if I can't fix this in one day. Sorry so long winded, and thanks reading!