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Old 02-08-2007, 10:35 AM
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MT-2500 MT-2500 is offline
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Re: 86 s15 Jimmy running terrible

Quote:
Originally Posted by SCHADMAN
All of a sudden my 86 s15 Jimmy takes a year to start. when i drive down the road, the vehicle slows down, then speeds up and slows back down.
As this is happening, the lights dim when it bogs down and they brighten back up when it speeds up again. Almost runs like its bad gas i guess. Is this a possible sensor problem. I replaced the alternator and no change in lights dimming and getting brighter.
What engine?
How is the tune up end?
Any check engine lights?
First thing would be fuel filter and fuel pressure?
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