My 2.8 Cherokee is grumpy

5

Asked by Nov 19, 2016 at 03:45 PM about the 1986 Jeep Cherokee 2 Dr Pioneer

Question type: Maintenance & Repair

The time light shows an erratic crazy timing and the car pops and idles rough

8 Answers

40,505

The timing chain may be stretched out.

40,505

If the distributor bushings are worn the timing may be erratic.

5

You mean the rotor? Replaced, still same, could be the map sensor? I have replaced alot of parts but not successful, replaced chain, rebuild carb, redone throttle shaft, alot alot, what does the fire timing regulations, the map or something else?, I bought a maintenance book also.

40,505

Not the rotor but the internal parts to the distributor. Depending on what type of ignition system you have, the bushings being worn can cause the timing to jump all over the place. You may want to get a new distrubutor.

40,505

If you replaced the timing chain did you replace the gears?

5

If I disconnect the 4pin connection to the distributor tha engine idles ok

5

I will try to do that with the distributor thanks, let you know

40,505

Try to wiggle the rotor around. If there is any play side to side then the bushings are worn.

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