Depending on your year of Cherokee, I know the 1991 and newer Cherokees use Champion RC12LYC, Autolite 985, and Denso QJ16HR-U with the 4.0L 6 cylinder engine.
On my 2000 Jeep Grand Cherokee Limited with a 4.7L V8, I used Champion Copper Plus RC12MCC4. These are the plugs that the manufacturer calls for. No other plugs should be used. (If you don't believe me, search the internet)
Learn how to change the spark plugs on a 4.7L V8 (SEE LINK BELOW).
How to replace spark plugs in a 1989 jeep cherokee?
Yes.
They are under the coils.
Beneath their coils.
They are under the coils, next to the fuel injectors.
The spark plugs on a 1993 5.2 L should be gapped to .035 inch.
if it is an automatic could be spark plugs or spark plug wiring...if a manual check the fuel pump
Answer :jeep spark plugsfor some unknown reason Chrysler uses champion spark plugs and they work the best, everything else just does not seem to perform as well.If you are not experienced or knowledgeable with the jeep engine, have your mechanic do it for you,they can be a bugger
it is a diagram of the engine?
They are under the coils.They are under the coils.
For the 1991 Jeep Cherokee 2-wheel drive, 4.0 liter 6-cylinder, the spark plug gap is .035 (in thousandths). It should be noted that the gap is not adjustable on all brands of spark plugs. Check the package before purchasing plugs.
Bad spark plugs or wires, also check the distributor cap.