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what next, oppinions please

what next, oppinions please

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Old

Oct 2, 2004 | 06:24 PM

#1

estearly

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Joined: Sep 2004

Posts: 26

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what next, oppinions please

we have a 1988 f150, 302 fuel injected, installed a "new full tank, in tank pump, side rail pump, fuel filters, fuel lines. Pressure is good, new plugs and wires, new relays from ford. ran great for about a week, then the problems start, poor performance, my mechanic said i had a bad injector on cyl #3 so i replaced it, now my rpm's at idle in park are about 1400 befor the were at about 700, and drive at about 1200 so when i shift from park to drive the trany sounds like a bomb, reverse seems normal. Please help with any suggestions.
thanks
eddie

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Old

Oct 3, 2004 | 11:28 PM

#2

LxMan1

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Joined: Dec 2001

Posts: 22,436

Likes: 17

From: Louisville,Ky.

Either someone has turned in the idle screw on the throttlebody or the IAC is stuck open causing it to idle too fast.

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