20 Most Recent 1990 Jeep Cherokee Limited Questions & Answers

Question edited into written English. Question moved to Jeep Cherokee category. Typing is all CAPITALS is considered shouting and rude. It is also difficult to read! Did you check for Diagnostic Trouble codes (DTCs). Have you disconnected the battery or let it run flat. This has all the hallmarks of an immobilizer lock out. https://www.google.com/search?q=1990+jeep+cherokee+reset+security+system ..

you need to get it checked out by someone with mechanical knowledge as it may be a freeze plug or cracked pump housing, burst radiator, just try to see where the water is coming out if you can while you pour it in.

Try replacing the wire from the positive battery cable to the small terminal it is attched to. It is the smaller gauge wire that is attched to the battery terminal. Be sure to use the right gauge, don't over or undersize it. I had this problem and it did'nt stop until I changed this. Without this wire in good condition, the starter will crank too slow or not crank at all, mimicking other problems (like bad battery, bad starter , etc.). Post if it works.

Check for spark, check fuel pressure.

sometimes an unbalanced tire could do this

old post and is key question on old jeeps no engine stated. guess 4L the ASD began 1990 to present. the ANSWER IS BELOW. the car did not have and ASD until your car was 100% Chrysler EFI. The goofy French EFI has none . ASD and the 3 second rules and 6 to 8 failure classes to trip it. none. some jeeps changed in 1993,

• 1986 - Renix TBI available on Jeep 2.5 L four-cylinder engines.
• 1987 - the new Renix controlled 4.0 L six-cylinder engine was rated at 173 hp (129 kW; 175 PS) and 220 lb·ft (298 N·m) of torque.
• 1988 - 4.0 L output increased to 177 hp (132 kW; 179 PS) and 224 lb·ft (304 N·m) of torque, due to higher compression ratio. Renix still TBI
• 1989 - Changed to Renix MPFI. (4 injectors now)
• 1991 - Chrysler Corporation (then the owners of the Jeep brand replaced the Renix control system with OBD-I-compliant control electronics, the Chrysler HO EFI) with check engine light.(and flash codes)

Rewire it and go after market radio.

Yes just punch it in on Google, remember to add the year make and model then put diagram,should bring up some pucs

The starter is not connected th the cooling system at all

try changing head gasket and this may sort your prob. could poss be a cracked head though

could be alot of things,get a code reader and find out

get the FSM, factory service manual or alldata.com login read how to remove ignition switch, bingo.

Here's a link on replacing your ignition switch. SAVE 20 ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE

ya its your regulator not putting out enough volts

did you go to lojack dot com and read. id bet not, huh? its there, after all it is their system. and is not in any new 1990 Cher.

Your description is too vague to give specific advise. However, if you are stating that the engine turns over when you turn the key but it wont run, then you want to check a few possibilities. Fuel, Spark, compression. Make sure the engine is getting fuel. Then check for spark at one of the plug wires. Then check cylinder compression. No fuel can be a fuel pump, plugged filter, or pump electrical connection, like pump relay or wires. Spark problem can be ignition coil, coil pack, distributor module, distributor points. Compression can be piston rings, valves, head gasket. This is not everything, but it may help you!

White smoke? Coolant is getting in the cylinder and the white smoke is really steam. Sounds like you have a blown head gasket. Bad news is that it needs to be replaced...good news is that the inline 6 cylinder engine is one of the easier head gaskets to replace. I've never replaced a head gasket but did it on my Cherokee just three months ago. If you tag your parts and pay attention how they are taken off you can do it. The other option is to replace the engine as they are pretty cheap to get. Good luck.

old post but a great question. over sized tires and and wheels? 1: incorrect assembly, (installation) tops list , did you read every step in the FSM? skip Step 3? that 175 foot /lbs rule? bingo , huh? 2: gross alignment issues, but the tires tread will tell you, hey buddy it's bad. 3: use Timken brand, (moog is great too) my wild guess, is you never read the chapter 2, page, 10? the hub bearing is preloaded. (crush bearings here) suspension opt chapter. 2. RTM read the FSM do not set the bearings in this hub like some utility or boat tailer hub. its totally different technology, this bearing. my guess is yours are loose. ; and the beat them selves to death. Timken runs tests on this and shows them doing that in under 1000 miles. (done wrong, too tight or too loose , out of spec range) these are crush bearings, that crush and the clearance goes to perfect like magic, and by DESIGN.