Rough idle, 4.0

1989Bii · Mar 31, 2011

The other day i noticed that it was running really rough in drive at a stop, and then it shut off. It wouldn't crank up at first so i gave it some gas and it cranked back up and started chugging again. When i swapped the 4.0 i used the 2.9 fuel pump, do i need the 4.0 pump? Thanks! :icon_confused:

disciplerocks · Mar 31, 2011

My 2.9 pump is working fine. Check all the normal stuff. How long has the swap been complete?

RacinNdrummin · Mar 31, 2011

Sounds like maybe a sticky IAC... Check that first.

1989Bii · Mar 31, 2011

disciplerocks said:
My 2.9 pump is working fine. Check all the normal stuff. How long has the swap been complete?

I've had it done for about a month or two.

Rough idle, 4.0

1989Bii

10+ Year Member

disciplerocks

July 2011 OTOTM Winner

RacinNdrummin

15+ Year Member

1989Bii

10+ Year Member

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