98 TJ Hesitation and Idle issues....
10-13-2004, 05:38 PM
#21
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Posts: n/a
Re: 98 TJ Hesitation and Idle issues....
jmorrison518 did pass the time by typing:
> OK, this is odd, I now have a new symptom, I don't know if this
> changes anything. When I drive the Jeep now, if I push in the clutch
> while it's moving, the idle jumps up to 1500 and stays there until the
> vehicle comes to a complete stop. Only after it comes to a complete
> stop does the idle kick back down.
>
> I even tried it on a big hill on my way into work. I got going and
> then pushed in the clutch to just coast. The whole time I was coasting
> the idle was at 1500. When I got to the end of the coast and stopped,
> it kicked back down to around 750 (the normal idle)
>
> Does this change anything, or should I still try the insulating of the
> fuel rail?
High idle is different than bucking/stalling after heat soak.
That said, I'm not familiar with how a standard affects idle. I would
expect the idle could remain high as the jeep is expecting to be put into
gear.
Have you cleaned the throttle body IAP?
http://members.***.net/wilsond/tb/tb.html
Do that first then check. Sometimes the Idle Air motor will stick.
--
DougW
> OK, this is odd, I now have a new symptom, I don't know if this
> changes anything. When I drive the Jeep now, if I push in the clutch
> while it's moving, the idle jumps up to 1500 and stays there until the
> vehicle comes to a complete stop. Only after it comes to a complete
> stop does the idle kick back down.
>
> I even tried it on a big hill on my way into work. I got going and
> then pushed in the clutch to just coast. The whole time I was coasting
> the idle was at 1500. When I got to the end of the coast and stopped,
> it kicked back down to around 750 (the normal idle)
>
> Does this change anything, or should I still try the insulating of the
> fuel rail?
High idle is different than bucking/stalling after heat soak.
That said, I'm not familiar with how a standard affects idle. I would
expect the idle could remain high as the jeep is expecting to be put into
gear.
Have you cleaned the throttle body IAP?
http://members.***.net/wilsond/tb/tb.html
Do that first then check. Sometimes the Idle Air motor will stick.
--
DougW
10-13-2004, 05:38 PM
#22
Guest
Posts: n/a
Re: 98 TJ Hesitation and Idle issues....
jmorrison518 did pass the time by typing:
> OK, this is odd, I now have a new symptom, I don't know if this
> changes anything. When I drive the Jeep now, if I push in the clutch
> while it's moving, the idle jumps up to 1500 and stays there until the
> vehicle comes to a complete stop. Only after it comes to a complete
> stop does the idle kick back down.
>
> I even tried it on a big hill on my way into work. I got going and
> then pushed in the clutch to just coast. The whole time I was coasting
> the idle was at 1500. When I got to the end of the coast and stopped,
> it kicked back down to around 750 (the normal idle)
>
> Does this change anything, or should I still try the insulating of the
> fuel rail?
High idle is different than bucking/stalling after heat soak.
That said, I'm not familiar with how a standard affects idle. I would
expect the idle could remain high as the jeep is expecting to be put into
gear.
Have you cleaned the throttle body IAP?
http://members.***.net/wilsond/tb/tb.html
Do that first then check. Sometimes the Idle Air motor will stick.
--
DougW
> OK, this is odd, I now have a new symptom, I don't know if this
> changes anything. When I drive the Jeep now, if I push in the clutch
> while it's moving, the idle jumps up to 1500 and stays there until the
> vehicle comes to a complete stop. Only after it comes to a complete
> stop does the idle kick back down.
>
> I even tried it on a big hill on my way into work. I got going and
> then pushed in the clutch to just coast. The whole time I was coasting
> the idle was at 1500. When I got to the end of the coast and stopped,
> it kicked back down to around 750 (the normal idle)
>
> Does this change anything, or should I still try the insulating of the
> fuel rail?
High idle is different than bucking/stalling after heat soak.
That said, I'm not familiar with how a standard affects idle. I would
expect the idle could remain high as the jeep is expecting to be put into
gear.
Have you cleaned the throttle body IAP?
http://members.***.net/wilsond/tb/tb.html
Do that first then check. Sometimes the Idle Air motor will stick.
--
DougW
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