Question about 1989 Jeep Grand Wagoneer

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89 Wagoneer drives rough

My 89 Jeep Grand Wagoneer idles fine, but as soon as I'm in a moving gear, it idles rough and accelerations is extremely poor (takes about 10 seconds to get up to 30 MPH). I've cleaned out the carb, changed the air filter and fuel filter to no avail. Does anyone have any idea?

The carb hasn't been rebuilt, the engine hasn't been overhauled. Drove fine for the past year when I purchased it, now is having issues.
Replaced spark plugs & wiring, oil, air & fuel filter 6 months ago. Have only added 3k miles since then.

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The thing to do now is a fuel pressure test pump could be weak just a few pounds under the recamended pressure will do that weather its mechanical or electrical . Is there a filter in the carb. wear fuel fine hooks? If none of this is an issue at least you can eliminate fuel deliverly as the problem.

Posted on Apr 19, 2009

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