Question about 1989 Dodge Dynasty
I had this issue last summer. it turned out to be a weak fuel pump. Or more specifically the check valve in the fuel pump. It will buck and carry on when you goose it.
Let it sit after you have run it for a while and the fuel pressure bleeds off. (it is supposed to stay up around 30PSI). When this happens, because of the low pressure and the heat in the engine compartment the fuel will boil in the fuel rail causing a vapor lock. The engine may start after spinning a long while, but will want to cut out if you touch the accelerator. Have your mechanic put a fuel pressure guage on it. it should be up there, like I say, around 30PSI or better when the engine is running. It should hold that when it is shut off. If it bleeds down right away, replace the fuel pump. Took me a long time to figure out what was happeneing on mine.
Posted on Apr 15, 2009
I had a 98 dodge caravan with a 3.0 liter with the same problem I replaced the fuel pump and it ran ok for about a day then it started doing the same thing. we replaced the fuel pump 2 more times before we got a good fuel pump. apparently new fuel pumps aren't always dependable.
Posted on May 07, 2010
It could be a fuel pump problem or filter. When
the car doesn't start (or dies) you need to check to see if it is
getting spark and fuel. One will be missing.
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Posted on Apr 16, 2009
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Posted on Jan 02, 2017
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