engine idle vibration
 

Hi, All
92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
problem is still there.

Any idea is appreciate.

Herb

Re: engine idle vibration
 

And new cap, rotor, wires, and plugs?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Herb wrote:
>
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.
>
> Herb

Re: engine idle vibration
 

And new cap, rotor, wires, and plugs?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Herb wrote:
>
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.
>
> Herb

Re: engine idle vibration
 

And new cap, rotor, wires, and plugs?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Herb wrote:
>
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.
>
> Herb

Re: engine idle vibration
 

And new cap, rotor, wires, and plugs?
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/

Herb wrote:
>
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.
>
> Herb

Re: engine idle vibration
 

"Herb" <haizhong_email@yahoo.com> wrote in message news:Hlsqe.15329$Nd3.870927@news20.bellglobal.com. ..
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.

It's probably missing... fouled plug, or otherwise
bad cap, rotor, secondary wire. Do a tuneup...
save the plugs in the order they came out, so
you know which went where... hell, your Haynes
has a decent chapter on this.

If it *still* misses, then look at injectors... pull
the injector wires one at a time until you find
the one that doesn't change the idle... there
you go.
__
Steve
..

Re: engine idle vibration
 

"Herb" <haizhong_email@yahoo.com> wrote in message news:Hlsqe.15329$Nd3.870927@news20.bellglobal.com. ..
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.

It's probably missing... fouled plug, or otherwise
bad cap, rotor, secondary wire. Do a tuneup...
save the plugs in the order they came out, so
you know which went where... hell, your Haynes
has a decent chapter on this.

If it *still* misses, then look at injectors... pull
the injector wires one at a time until you find
the one that doesn't change the idle... there
you go.
__
Steve
..

Re: engine idle vibration
 

"Herb" <haizhong_email@yahoo.com> wrote in message news:Hlsqe.15329$Nd3.870927@news20.bellglobal.com. ..
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.

It's probably missing... fouled plug, or otherwise
bad cap, rotor, secondary wire. Do a tuneup...
save the plugs in the order they came out, so
you know which went where... hell, your Haynes
has a decent chapter on this.

If it *still* misses, then look at injectors... pull
the injector wires one at a time until you find
the one that doesn't change the idle... there
you go.
__
Steve
..

Re: engine idle vibration
 

"Herb" <haizhong_email@yahoo.com> wrote in message news:Hlsqe.15329$Nd3.870927@news20.bellglobal.com. ..
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.

It's probably missing... fouled plug, or otherwise
bad cap, rotor, secondary wire. Do a tuneup...
save the plugs in the order they came out, so
you know which went where... hell, your Haynes
has a decent chapter on this.

If it *still* misses, then look at injectors... pull
the injector wires one at a time until you find
the one that doesn't change the idle... there
you go.
__
Steve
..

Re: engine idle vibration
 

How is the clutch on the fan?

Is the serpentine belt wearing ok? If it is getting any wear on one
edge, suspect the harmonic balancer.

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

Herb wrote:
>
> Hi, All
> 92 Cherokee Laredo, engine vibration when idle. Cleaned throttle body,
> problem is still there.
>
> Any idea is appreciate.
>
> Herb