91 XJ: idling problems
 

I've got a 91 XJ. When cold it has problems idling (whether in gear or not).
After about 15 minutes the idling problem disappears. Last time I checked
the plugs, the frontmost plug was in bad shape the electrode was nearly worn
away, I managed to gap it, but I really should've replaced it. Could this be
the problem?

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Re: 91 XJ: idling problems
 

Doug did pass the time by typing:
> I've got a 91 XJ. When cold it has problems idling (whether in gear or not).
> After about 15 minutes the idling problem disappears. Last time I checked
> the plugs, the frontmost plug was in bad shape the electrode was nearly worn
> away, I managed to gap it, but I really should've replaced it. Could this be
> the problem?

Yep. That and carboning up #1, and helping to clog your cat.

Saving a plug could burn out your coil. Go get some Autolite plugs and pop
em in.

Could also be the throttle body idle air passage.
http://members.cox.net/wilsond/tb/tb.html

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: 91 XJ: idling problems
 

Doug did pass the time by typing:
> I've got a 91 XJ. When cold it has problems idling (whether in gear or not).
> After about 15 minutes the idling problem disappears. Last time I checked
> the plugs, the frontmost plug was in bad shape the electrode was nearly worn
> away, I managed to gap it, but I really should've replaced it. Could this be
> the problem?

Yep. That and carboning up #1, and helping to clog your cat.

Saving a plug could burn out your coil. Go get some Autolite plugs and pop
em in.

Could also be the throttle body idle air passage.
http://members.cox.net/wilsond/tb/tb.html

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: 91 XJ: idling problems
 

Doug did pass the time by typing:
> I've got a 91 XJ. When cold it has problems idling (whether in gear or not).
> After about 15 minutes the idling problem disappears. Last time I checked
> the plugs, the frontmost plug was in bad shape the electrode was nearly worn
> away, I managed to gap it, but I really should've replaced it. Could this be
> the problem?

Yep. That and carboning up #1, and helping to clog your cat.

Saving a plug could burn out your coil. Go get some Autolite plugs and pop
em in.

Could also be the throttle body idle air passage.
http://members.cox.net/wilsond/tb/tb.html

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: 91 XJ: idling problems
 

Doug did pass the time by typing:
> I've got a 91 XJ. When cold it has problems idling (whether in gear or not).
> After about 15 minutes the idling problem disappears. Last time I checked
> the plugs, the frontmost plug was in bad shape the electrode was nearly worn
> away, I managed to gap it, but I really should've replaced it. Could this be
> the problem?

Yep. That and carboning up #1, and helping to clog your cat.

Saving a plug could burn out your coil. Go get some Autolite plugs and pop
em in.

Could also be the throttle body idle air passage.
http://members.cox.net/wilsond/tb/tb.html

--
-- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
Banks Header - and BEER, in the fridge!

Re: 91 XJ: idling problems
 

I wish I knew how that one plug got so eroded while the rest looked great. I
guess I'll replace it tomorrow. Autolite's your recommendation then? The
other plugs looked great so I shouldn't have to replace them.

--
Remove nospam to email
"DougW" <post.replies@invalid.address> wrote in message
news:EIbhe.8737$Ri4.7057@okepread07...
> Doug did pass the time by typing:
>> I've got a 91 XJ. When cold it has problems idling (whether in gear or
>> not).
>> After about 15 minutes the idling problem disappears. Last time I checked
>> the plugs, the frontmost plug was in bad shape the electrode was nearly
>> worn
>> away, I managed to gap it, but I really should've replaced it. Could this
>> be
>> the problem?
>
> Yep. That and carboning up #1, and helping to clog your cat.
>
> Saving a plug could burn out your coil. Go get some Autolite plugs and
> pop
> em in.
>
> Could also be the throttle body idle air passage.
> http://members.cox.net/wilsond/tb/tb.html
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!
>

Re: 91 XJ: idling problems
 

I wish I knew how that one plug got so eroded while the rest looked great. I
guess I'll replace it tomorrow. Autolite's your recommendation then? The
other plugs looked great so I shouldn't have to replace them.

--
Remove nospam to email
"DougW" <post.replies@invalid.address> wrote in message
news:EIbhe.8737$Ri4.7057@okepread07...
> Doug did pass the time by typing:
>> I've got a 91 XJ. When cold it has problems idling (whether in gear or
>> not).
>> After about 15 minutes the idling problem disappears. Last time I checked
>> the plugs, the frontmost plug was in bad shape the electrode was nearly
>> worn
>> away, I managed to gap it, but I really should've replaced it. Could this
>> be
>> the problem?
>
> Yep. That and carboning up #1, and helping to clog your cat.
>
> Saving a plug could burn out your coil. Go get some Autolite plugs and
> pop
> em in.
>
> Could also be the throttle body idle air passage.
> http://members.cox.net/wilsond/tb/tb.html
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!
>

Re: 91 XJ: idling problems
 

I wish I knew how that one plug got so eroded while the rest looked great. I
guess I'll replace it tomorrow. Autolite's your recommendation then? The
other plugs looked great so I shouldn't have to replace them.

--
Remove nospam to email
"DougW" <post.replies@invalid.address> wrote in message
news:EIbhe.8737$Ri4.7057@okepread07...
> Doug did pass the time by typing:
>> I've got a 91 XJ. When cold it has problems idling (whether in gear or
>> not).
>> After about 15 minutes the idling problem disappears. Last time I checked
>> the plugs, the frontmost plug was in bad shape the electrode was nearly
>> worn
>> away, I managed to gap it, but I really should've replaced it. Could this
>> be
>> the problem?
>
> Yep. That and carboning up #1, and helping to clog your cat.
>
> Saving a plug could burn out your coil. Go get some Autolite plugs and
> pop
> em in.
>
> Could also be the throttle body idle air passage.
> http://members.cox.net/wilsond/tb/tb.html
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!
>

Re: 91 XJ: idling problems
 

I wish I knew how that one plug got so eroded while the rest looked great. I
guess I'll replace it tomorrow. Autolite's your recommendation then? The
other plugs looked great so I shouldn't have to replace them.

--
Remove nospam to email
"DougW" <post.replies@invalid.address> wrote in message
news:EIbhe.8737$Ri4.7057@okepread07...
> Doug did pass the time by typing:
>> I've got a 91 XJ. When cold it has problems idling (whether in gear or
>> not).
>> After about 15 minutes the idling problem disappears. Last time I checked
>> the plugs, the frontmost plug was in bad shape the electrode was nearly
>> worn
>> away, I managed to gap it, but I really should've replaced it. Could this
>> be
>> the problem?
>
> Yep. That and carboning up #1, and helping to clog your cat.
>
> Saving a plug could burn out your coil. Go get some Autolite plugs and
> pop
> em in.
>
> Could also be the throttle body idle air passage.
> http://members.cox.net/wilsond/tb/tb.html
>
> --
> -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> Banks Header - and BEER, in the fridge!
>

Re: 91 XJ: idling problems
 

How many miles are on the plugs? If more than 30K, I would dump them
all.

I also prefer Champion plugs, but that is just me.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's

Doug wrote:
>
> I wish I knew how that one plug got so eroded while the rest looked great. I
> guess I'll replace it tomorrow. Autolite's your recommendation then? The
> other plugs looked great so I shouldn't have to replace them.
>
> --
> Remove nospam to email
> "DougW" <post.replies@invalid.address> wrote in message
> news:EIbhe.8737$Ri4.7057@okepread07...
> > Doug did pass the time by typing:
> >> I've got a 91 XJ. When cold it has problems idling (whether in gear or
> >> not).
> >> After about 15 minutes the idling problem disappears. Last time I checked
> >> the plugs, the frontmost plug was in bad shape the electrode was nearly
> >> worn
> >> away, I managed to gap it, but I really should've replaced it. Could this
> >> be
> >> the problem?
> >
> > Yep. That and carboning up #1, and helping to clog your cat.
> >
> > Saving a plug could burn out your coil. Go get some Autolite plugs and
> > pop
> > em in.
> >
> > Could also be the throttle body idle air passage.
> > http://members.cox.net/wilsond/tb/tb.html
> >
> > --
> > -- DougW -- 93 ZJ 4.0 http://members.cox.net/wilsond
> > HESCO Supercharger - 300W IASCA Stereo - Edelbrock IAS Shocks
> > Gibson Exhaust - rear DCpower - custom gauge install - Stillen Rotors
> > Banks Header - and BEER, in the fridge!
> >