97 TJ hesitant acceleration
 

Hi All
My 97 TJ will hesitate while coming from a stop in first gear. It
feels like it is stalling out then all of the sudden it will catch and
run smooth. The RPM's stay constant though. Approximately 20k miles
ago I replaced the TPS on the throttle body when the TJ was idling at
2000RPMs.
I want to say this is the CPS but it starts fine. The only thing I
can think of is the Borla Header mod I did 30k ago maybe the heat from
that is screwing with the plastic sensor. I am going to take the TJ to
the quarter car wash and degrease the engine. Then go down and get
some WD40 in all the sensors.
Any ideas on what other sensors could have fouled up? Is there any
place other than the dealer to buy new sensors?
Thanks
Mike
97TJ 4.0L 5spd(Pepe the Mule)

Re: 97 TJ hesitant acceleration
 

How about the spark plugs, got close to thirty on them:
http://www.----------.com/lubeschedule.pdf ?
God Bless America, ßill O|||||||O
mailto:--------------------

Michael J wrote:
>
> Hi All
> My 97 TJ will hesitate while coming from a stop in first gear. It
> feels like it is stalling out then all of the sudden it will catch and
> run smooth. The RPM's stay constant though. Approximately 20k miles
> ago I replaced the TPS on the throttle body when the TJ was idling at
> 2000RPMs.
> I want to say this is the CPS but it starts fine. The only thing I
> can think of is the Borla Header mod I did 30k ago maybe the heat from
> that is screwing with the plastic sensor. I am going to take the TJ to
> the quarter car wash and degrease the engine. Then go down and get
> some WD40 in all the sensors.
> Any ideas on what other sensors could have fouled up? Is there any
> place other than the dealer to buy new sensors?
> Thanks
> Mike
> 97TJ 4.0L 5spd(Pepe the Mule)

Re: 97 TJ hesitant acceleration
 

How about the spark plugs, got close to thirty on them:
http://www.----------.com/lubeschedule.pdf ?
God Bless America, ßill O|||||||O
mailto:--------------------

Michael J wrote:
>
> Hi All
> My 97 TJ will hesitate while coming from a stop in first gear. It
> feels like it is stalling out then all of the sudden it will catch and
> run smooth. The RPM's stay constant though. Approximately 20k miles
> ago I replaced the TPS on the throttle body when the TJ was idling at
> 2000RPMs.
> I want to say this is the CPS but it starts fine. The only thing I
> can think of is the Borla Header mod I did 30k ago maybe the heat from
> that is screwing with the plastic sensor. I am going to take the TJ to
> the quarter car wash and degrease the engine. Then go down and get
> some WD40 in all the sensors.
> Any ideas on what other sensors could have fouled up? Is there any
> place other than the dealer to buy new sensors?
> Thanks
> Mike
> 97TJ 4.0L 5spd(Pepe the Mule)

Re: 97 TJ hesitant acceleration
 

How about the spark plugs, got close to thirty on them:
http://www.----------.com/lubeschedule.pdf ?
God Bless America, ßill O|||||||O
mailto:--------------------

Michael J wrote:
>
> Hi All
> My 97 TJ will hesitate while coming from a stop in first gear. It
> feels like it is stalling out then all of the sudden it will catch and
> run smooth. The RPM's stay constant though. Approximately 20k miles
> ago I replaced the TPS on the throttle body when the TJ was idling at
> 2000RPMs.
> I want to say this is the CPS but it starts fine. The only thing I
> can think of is the Borla Header mod I did 30k ago maybe the heat from
> that is screwing with the plastic sensor. I am going to take the TJ to
> the quarter car wash and degrease the engine. Then go down and get
> some WD40 in all the sensors.
> Any ideas on what other sensors could have fouled up? Is there any
> place other than the dealer to buy new sensors?
> Thanks
> Mike
> 97TJ 4.0L 5spd(Pepe the Mule)