77steve

hi guys i'm a newbie, i have a question about my 89 cherokee sport.... when i used to drive short distances and shut it off it wouldn't start right away, just turn over and over till i pushed the gas pedal then it would fire up.... that has been going on for some months... not all the time just occasionally.... the problem now is it won't start at all now.....

fantic238

Cycle the key on off a couple of times to pressurize the fuel system. Buy an aftermarket check valve and place it on the fuel hose near the tank.

77steve

thanks for the speedy reply, does that mean my fuel pump is getting ready to go?

fantic238

If it doesn't bog down when driving the FP is ok, but the internal check valve isn't tight and the fuel flows back to the tank.

77steve

THANK YOU, I appreciate the help!!!

1988BlueBullet

I got the brackets off and installed the bumper no problem. Thanks for the help!

1988BlueBullet

Chain.

n91chriss

Hey folks, I posted a question here a while back, and now the Jeep is in the hands of some really good mechanics, the best Jeep guys I could possibly find. They have run aground as well, the thing won't run, it's not getting coil fire, nor are the injectors firing, the Jeep will crank up and run for a few minutes if it's been sitting awhile, and then dies, the relay proceeds to click like hell, and it won't crank back up again, this following a rebuilt engine being installed, all sensors are good, all wires are good, 3 modules of 3 different j/yard Jeeps later, no go. They traced all the wires, checked all the electrical. I'm at my wits end, I can't figure it out, this is my business vehicle, and my backup car is now requiring repairs also.
1988 Jeep Cherokee Laredo 4x4 Auto
Engine: 1991 4.0 from Comanche.

ZachsXJ

part of the problem could be that you put a High Output Motor in a Renix era Jeep. could also be a CPS issue. I'd check over all the sensors as a start and see if any are out of spec. Hopefully you got the wiring harness from the High Output motor along with its PCM

rsaraite

What is the best engine oil for Jeep Cherokee 2,8 TD synthetic or semi synthetic

n91chriss

The block and valve assembly are the only components from the high output engine, the manifolds, flywheel, transmission, valve cover, mount brackets, and all belt driven components are from the original engine. The CPS is new, and when it does start it registers rpm, meaning that the CPS is working just fine, MAP sensor is new, coil is new, pickup in distributor is new, ICM tested good, all relays have been checked/replaced, ballast resistor is new.

As far as the computer knows it's the same engine, it's just running a hell of a lot better. (all 6 rod bearings were knocking before the swap, sounded like a diesel eating nails)

judd

hi
i have a Grand Jeep cherokee 1988 2.5td manual the trouble is the fog lights stay on when the car is switched off and it drains the battery pushing the fog light switch does nothing can any body help me

thanks

judd

KY_Bob

The switch or the relay is bad. You can take the relay out of the circuit and test it first.

93xjcowboy

Does the steering column have a built in stop that keeps the wheel from turning to one side an unlimited amount?

Dennis Marion

I am new to this site, I have been working on my jeep all day it wont start it cranks but its not firing. I replaced the ignition module, coil still no spark and had the module tested it tested fine. Checked the fuses, wiring everything seems to be intact no blown fuses. I checked the relays there fine. Fuel pump is new and its working. Even checked the module in the distributer and its working. Any suggestions would be helpfull.