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Jeep Other Repair Question


Topics covered: Spark, Distributor, Backfire.
Mileage: No information provided.

Asked on July 29, 2006

Engine idles rough, just replaced oxygen sensor

1988 Jeep pioneer. When I bought this vehicle it had no spark. I replaced the pickup coil, & the ignition coil, got spark and started vehicle. It idled ruff. I decided to replace the cap, rotor and wires. Still idles ruff. When I give a little throttle it seems to choke itself and wants to stall. Slight backfire. Any info you can give relating this proble is gratefully appreciated.

OK I just replaced the oxygen sensor and it still idles ruff. Whats next.

Thanks
Avatar Asked by _Stingray_

Answer

Replied on July 30, 2006

How long has the fuel been sitting in the vehicle when you bought it?

Tiny Answered by demearsjr
0 questions asked
Replied on July 31, 2006

As far as I know it last ran in December of last year. There isn't very much fuel in the tank because the fuel light is on.

Tiny Response from _Stingray_
1 question asked
Replied on July 31, 2006

Didn't say if it was backfiring through the exhaust or the carb.
Did you move the distributor while you were changing the pick up coil?

Tiny Answered by demearsjr
0 questions asked

Replied on August 1, 2006

I removed the distributor off the engine and installed the pickup coil on the bench, and I reinstalled the distribuitor so that rotor is just before the #1 position.

Tiny Response from _Stingray_
1 question asked
Replied on August 1, 2006

Well, now it idled so rough it stalled itself and now I can't get it started. Theres still plenty of spark. I do believe there's a major vacuum leak which I cant seem to locate. Now I have to try to get it started again.

Tiny Response from _Stingray_
1 question asked
Replied on August 1, 2006

You have some spark now, I would look at the fuel. Put some good gas in it, and maybe a little additive to remove water. Check the fuel pump to make sure it is supplying good pressure.
Things do tend to break when they sit for too long.

Tiny Answered by Mikeybdman
6 questions asked