rpm's drop when coming to a stop

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10-26-2011, 10:40 AM

CattyXJ

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Year: 1996

Model: Cherokee

Engine: 4.0

rpm's drop when coming to a stop

Hey guys...the past few weeks when I come to a stop, my xj starts to stutter like is is going to stall, then goes back to normal once I'm stopped. It hasn't stalled yet, but it's getting worse and I want to fix it before it gets there. The TPS, fuel pump, filter are all new. What do you think?

96 4.0 auto...

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10-26-2011, 10:53 AM

Gee oh Dee

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Year: 1987

Engine: Check

IAC could be giving trouble. Or a vacuum leak.

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10-26-2011, 02:13 PM

LCFRJEEP

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Year: 1997

Model: Cherokee

Engine: 4.0 H.O.

X2 on the IAC or vaccum leak! Last time you did a complete tune up (plugs, wires, cap and rotor)?? Good Luck!!

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10-26-2011, 04:15 PM

cruiser54

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Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by LCFRJEEP

X2 on the IAC or vaccum leak! Last time you did a complete tune up (plugs, wires, cap and rotor)?? Good Luck!!

A good throttle body and IAC cleaning is in order along with verifying tune-up parts.

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10-26-2011, 04:17 PM

troy fritz

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Look for vac leaks and clean the IAC. If cleaning it helps a little then try adjusting it. There is a bullet shaped thing when you remove the IAC. Just turn it one way and if that don't work then try the other way. good luck.