20 Most Recent 1988 Jeep Wrangler Questions & Answers

If it's stalling out at times did you check the crankshaft position sensor? That usually happens to Jeep vehicles a lot for some reason or another.

1988 Jeep... | Answered on Feb 13, 2019

You have an air leak around the throttle body

1988 Jeep... | Answered on Sep 21, 2017

I hate to tell you this but... If it overheated you probably have at the very least blown a head gasket. The best thing to do is run a compression check and that will tell all. Hope that helps

1988 Jeep... | Answered on Apr 19, 2017

Start out by checking the latch mechanism on the door. Use a screwdriver to "trip" the latch with the door open, then pull on the screwdriver against the latch gate. If it doesn't hold then you may have a bad latch (the springs in the latch can go bad over time). You can also try spraying penetrating oil (PB Blaster) into the latch and again using a screwdriver to trip the latch, then open with the handle, and repeat several times to work the oil into the mechanism and free it up (this trick also sometimes works with the springs on wiper arms that have lost tension). If the penetrating oil trick works, think about spraying dry lube or white lithium grease into the latch to help prevent it from happening again. If the door is misaligned, consider new hinge bushings, a misaligned door can cause damage to the door, and put tension on the door latch in a direction that puts pressure on the latch that it wasn't designed for.

1988 Jeep... | Answered on Apr 15, 2017

richard is right
what ever has happened after you played at being electrician
Put it all back to standard then get advice as to how to do each part

1988 Jeep... | Answered on Mar 14, 2017

both stuck mid glass?, not stuck running endless when off,?
that means the auto park switches in the wiper motor guts are bad.
when you turn them on the motor self runs,
the runs until the keep alive contact cam reaches the end
ad self turns off in park.
that cam fails on all 1988, its old. and hopeless that old.
if you had dismantled it youd see DAMAGE on the cam contacts or the wiper brush to it.

1988 Jeep... | Answered on Sep 21, 2015

Could be the starter motor, a bad solenoid or bad battery connections.

1988 Jeep... | Answered on Sep 01, 2015

timing of what, cam or spark.
what engine, is there.
Computerized Engine Control or Computerized Emission Control (CEC)
the 4.0L and 2.5 liter , uses the RENIX ecu. and not the CEC. tje REnix has fixed, CKP sensor timing.

the 4.2liter has distrib timing.
see below.
my guess is you have the instructions and
get lost at the find VACUUM switch on top of valve cover words?


1988 Jeep... | Answered on Jun 28, 2015

Front main? Rear main? Trans main? Diff main?

1988 Jeep... | Answered on May 05, 2015

Hi there
Tap the starter motor and solenoid with the wooden (handle) part of the hammer to loosen the internal workings, a possible layer of rust formed on the inside of the starter.

1988 Jeep... | Answered on Apr 12, 2015

Your catalytic covertor has basically disintegrated and is blocking the flow of exhaust gas from the motor causing your lack of power. You need a new convertor

1988 Jeep... | Answered on Mar 15, 2015

old car. with A/C or with out. we cant guess this..
log in to alldata. com and read?
  1. drain coolant,
  2. remove housing
  3. remove core. (easy but what is step 2)

housing. no A/C
step 2. expanded.
  1. Disconnect the heater hoses at the engine side of the firewall.
  2. Detach the heater control cables.
  3. Disconnect the motor wiring.
  4. Detach the water drain hose and the defroster hose.
  5. Remove the nuts from the studs in the engine compartment.
  6. Tilt the heater housing assembly down and pull it back toward the inside of the vehicle.
  7. Remove the attaching screws and the blower motor.

alldata.com covers this , with nice photos. why not just login and read.

1988 Jeep... | Answered on Oct 02, 2014

May have a small short or the wrong fuse.

1988 Jeep... | Answered on Aug 21, 2014

You could have two different problems . I have had two 1999 wranglers an the dash panel going out has always bin a faulty main connecter to the panel . I reach up under an wiggle an push it back in place . It doesn't come out it just loses connection . The other problem is a faulty dimmer switch i think .

1988 Jeep... | Answered on Jun 24, 2014

you are saying it is getting spark, and fuel, right? If it is getting spark, and fuel in to the throttle body, check compression-make sure the Mass Air Flow sensor is plugged in, and double check your spark-you say you replaced all those ignition items, but do not say that you have spark.

1988 Jeep... | Answered on May 31, 2014

double posted, but not answered 2x.
back up one.
or read the FSM.

1988 Jeep... | Answered on Apr 27, 2014

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