rough idle

[Ed Fenwick]

Hey guys, FYI

My 4.0 was bucking and shaking when the A/C cycled. The idle was sometimes 650, sometimes 900. So the other day I sprayed the intake with carburetor cleaner and put some Lucas fuel system cleaner in the gas tank. Then I went for a 100 mile drive and now there is no bucking, and the idle is smooth at 900. 'just wanted to say something 'cause it made me happy. God bless Ed

 

[Todd Z]

 

[Dave S 2]

Isn't 900rpm a might high on the 4.0? Don't have it in front of me but I'm thinking the idle should be around 700/750rpm?



But yes, good deal in ridding the rough part.

 

[Rodger Tellefson]

I agree with Dave S.