20 Most Recent 1988 Jeep Cherokee - Page 4 Questions & Answers

try ignition switch

This can be due to a faulty Crankshaft position sensor, it is a common failure in the year. It is located in the bell housing and is accessed from under the truck on the side above the starter.

Not sure if I read your post right, but you have to have a hot wire to the ignition switch from the battery, independent of anything else on the car, before the switch will work.The CPS is a common problem on the jeeps, though. If bad, you may not get a coil signal.

It sounds like the vacuum acuater is cracked or broken internaly. Recomend replacing the acuater and replacing all vacuum hoses at the same time. There is also a small relay switch under the hood under the radiator tank that may also require replacing.

Check the universal joints at the ends of the front driveline and then the axle half shafts. One of them is bad.

check the wireing to the solenoid

Okay, the first thing to check is to turn on the signal on one side and see if the outside signal light comes on. if the light comes on then try replacing the flasher. Also see if your 4way flashers work or if they are also out. if they are out then check your fuse first.If the fuses are good then try the flasher, if the flasher does not solve the problem then you may need to replace the turn signal switch. I have worked on a few of these and most of the time it was a flasher or the turn signal switch. good day.

You should replace the thermostat first as it may be sticking. If no difference then change the radiator cap as it may not be opening to allow coolant to flow to the overflow reservoir. Also make sure there is nothing blocking the overflow tube or tube connections.

the best bet is to get an adjustable shifter and linkage kit for it to compinsate for the lift,especialy if drop down brackets where used for the trany and other parts.

You may want to check your carburetor our your fuel pump

There are two options for engines; a four cylinder 2.5L and a V6 4.0L You haven't told me which one is in the Jeep so I'll send them both...photos are very much the same..Disconnect the negative battery cable.If necessary, disconnect the coolant temperature sensor electrical connector.Disconnect the upper radiator hose from the thermostat housing.Remove the attaching bolts and lift the housing from the engine...Remove the thermostat and gasket.To install: Clean all gasket surfaces thoroughly.Place the thermostat in the housing with the spring inside the engine.Install a new gasket with a small amount of sealing compound applied to both sides.Install the water outlet and tighten the mounting bolts to 200 inch lbs. (23 Nm) on V-8 engines and 15 ft. lbs. (20 Nm) on non-8 cylinder engines.Install the upper radiator hose to the housing and tighten the hose clamp.Connect the coolant temperature sensor connector to the housing.Refill the cooling system.#1#2#3guru...saailer I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

any broken wires going to starter?

Well, I would try to check the spark to make sure the ignition system is providing spark to the spark plugs. Then, I would check fuel pressure, to make sure that the injectors are getting enough pressure to provide gas to the cylinders, using a fuel pressure gauge on the rail.

if you are getting fire to the plgs its not the cranksaft sensor...if you arent getting fire you need to replace it they are simple to replace on the jeeps. took my son 5 minutes to change one out