1988 cherokee no spark

[Thomas McCormick]

I have a 1988 jeep cherokee. The problem is i am getting no spark i have replaced the cps sensor, the ignition switch, the slator, and the coil and still no spark. Can someone help please.

 

[superj]

Your is still running the old renix ignition and fuel control system so you will have to get a manual and multimeter and check the sensors. That is a very solid and easy to work on system.

Once you get it up and running again, swap your throttle body for one that is bored out to a larger size and you will be extremely impressed at how much better (faster and more power) your Jeep has become

 

[superj]

Double post

 

[Thomas McCormick]

Got a manual and tested all are getting correct voltage. Have cleaned and tightened all of the grounds.

 

[superj]

ok, so everything is good.

but it just cranks and doesn;t fire up or it doesn;t even crank?

 

[Thomas McCormick]

Cranks but dont start you can smell the gas so i know the fuel pump work.

 

[JPNinPA]

Be sure to only use oem sensors. New does not always equal good. Also, consider the CPK. They will fail without warning resulting in a no start condition.

 

[Cchu272]

I have the same problem in my 88 Cherokee. Did you ever get yours going?

 

[je4reyk]

Be sure to check and clean all grounds. The wiring harness doesn't have good grounds. If you have replaced the crank sensor (they do go out) then check the C101 wiring plug by the brake booster ( I finally had to delete mine ) look up Renix ground refreshing and do it before spending time and money,you will be thankful that you did

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