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89 dodge van has poor fuel delivery


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quintin9
User

Mar 9, 2010, 3:47 AM

Post #1 of 3 (2512 views)
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Unsurei have an 89 dodge B250 van with a 5.2L 318 engine about a week or so ago it started losing power as i drive it some times it will take off fine others i have to put it in a lower gear to get up to speed but then it will slowly lose speed again i changed the fuel filter it didn't help. sprayed carb cleaner in it as it was running and the engine would smooth out but then go back to a rough idle could this be the fuel injectors causing the problem


(This post was edited by quintin9 on Mar 9, 2010, 3:49 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
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Mar 9, 2010, 5:05 AM

Post #2 of 3 (2507 views)
Re: 89 dodge van has poor fuel delivery Sign In

1989! No problem just at the age lots is possible. Given that it ran better while spraying carb cleaner suggests fuel delivery is too low/lean (guess) by a fault with a vacuum leak or injection not delivering.

Test for both would be my approach,

T



nickwarner
Veteran / Moderator
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Mar 9, 2010, 8:01 PM

Post #3 of 3 (2501 views)
Re: 89 dodge van has poor fuel delivery Sign In

You didn't mention what your fuel pressure was at. You could have a weak pump. Like Tom said, at the age of it many things are possible so check the pressure and go from there until you can track this down to a specific system






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