Once my 2000 Cherokee warms up, it hesitates and the tachometer flutters upon acceleration. It is a 4.0, automatic, 4x4. Tried 02 sensors and TPS, and it did nothing, even replaced coil pack and crank sensor. Any ideas?
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Level: Hummer (H2)
2000 Cherokee hesitation
Once my 2000 Cherokee warms up, it hesitates and the tachometer flutters upon acceleration. It is a 4.0, automatic, 4x4. Tried 02 sensors and TPS, and it did nothing, even replaced coil pack and crank sensor. Any ideas?
Super Moderator
Re: 2000 Cherokee hesitation
Check engine light or codes?
230 hp 4.3L Chevy
Built 4L60E with manual lockout
Atlas 4 speed
Griffin radiator
On board air
Warn 9.5ti on custom bumper
7.5" RE front and bastard pack rear on custom long arms
30 gal gas tank
lockers
And a bunch of other stuff
Level: Hummer (H2)
Re: 2000 Cherokee hesitation
No engine light, no codes.
Super Moderator
Re: 2000 Cherokee hesitation
I think then that it is probably fuel related. Perhaps you are not getting enough fuel to the injectors. It is a pain to work on the pump or regulator in yours since you have to drop the tank.
230 hp 4.3L Chevy
Built 4L60E with manual lockout
Atlas 4 speed
Griffin radiator
On board air
Warn 9.5ti on custom bumper
7.5" RE front and bastard pack rear on custom long arms
30 gal gas tank
lockers
And a bunch of other stuff
Level: Hummer (H2)
Re: 2000 Cherokee hesitation
I'll put a pressure gauge on and try.
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