I have a 1989 Jeep wrangler that will not run at a idle and only is getting about 8 MPG. I have had it in a shop and it ran for a few days. The timing is correct. I have replaced the carburetor, Oxygen sensor, PCV valve, timing chain and sprockets, plugs, wires, distributor. The shop could not find a vacuum leak. The charcoal canister only had the carb vent line and gas line hooked up, the purge lines are both not hooked up. My emission light is on. my temperature gauge does not work. The catalytic converter is cut off. For the most part I have plenty of power. If I set the idle at about 10 thousand RPM It runs good other than the bad fuel mileage. The engine has 170 thousand on it but the compression seems to still be good and it doesn't burn much oil.
- posted
20 years ago