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john swanson
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• los angeles, CA, USA |
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• Registered on 7/16/2003 |
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• 7 posts |
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 Posted:7/16/2003 20:29 |
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i have a 89 bronco and it is in fairly good shape. The engine runs well but it runs very roughly. The rpm meter jumps up and down about 75 rpms while idling in drive. It runs smoother in park but still kind of rough. Is there anything i can do to help this situation besides adding fuel injection cleaner? Thanks! |
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J Root
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• Eagle River, AK, USA |
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• Registered on 7/7/2003 |
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• 8 posts |
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 Posted:7/16/2003 23:44 |
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Have you put a timing gun to it? Best of luck!
Junior
~Some people pursue happines... Others create it~ |
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matt berger
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• bethany, OK, USA |
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• Registered on 5/10/2003 |
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• 16 posts |
• 3 Vehicles
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Posted:7/21/2003 12:49 |
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Can we assume you've done a tune up? The symptoms you described could be caused by any myriad of things, or a combination, to my knowledge.
Could need new plug wires, plugs, oxygen sensor, could need to have the injectors cleaned (professionally, not just the additive) could have vacuum or exhaust leaks, or any combination of the above.
If you could get someone to do a diagnostic check on it, to see what codes the computer is showing, or buy a reader yourself and check it, that could be a good start as to determining the problem.
"There are chords in the heart of every man, which cannot be touched without emotion- even with the utterly lost, to whom both life and death are equally jest, there are some matters of which no joke can be made."- Edgar Allen Poe |
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