Speaking of heater problems...

Here's an annoying one... On my 99 Wrangler Sport...

I have hardly any air running up to the defroster. It's blowing, just
something in the vent system doesn't seem to be opening up.

Other times I'll be driving along with the heater or AC on and it'll
make a 'thunking' noise like something is opening or closing.. and the
fan will shut off.

I've surmissed it must be vacuum related.. but anyone know how/where to
check this?

Joseph

The main vacuum connection should be on the rear corner of the intake
manifold. I would start there looking for a cracked fitting or line.

Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
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Ice wrote:
>
> Here's an annoying one... On my 99 Wrangler Sport...
>
> I have hardly any air running up to the defroster. It's blowing, just
> something in the vent system doesn't seem to be opening up.
>
> Other times I'll be driving along with the heater or AC on and it'll
> make a 'thunking' noise like something is opening or closing.. and the
> fan will shut off.
>
> I've surmissed it must be vacuum related.. but anyone know how/where to
> check this?
>
> Joseph

Real Jeeps don't have vacuum control on the heater.

Earle

"Ice" > wrote in message
oups.com...
> Here's an annoying one... On my 99 Wrangler Sport...
>
> I have hardly any air running up to the defroster. It's blowing, just
> something in the vent system doesn't seem to be opening up.
>
> Other times I'll be driving along with the heater or AC on and it'll
> make a 'thunking' noise like something is opening or closing.. and the
> fan will shut off.
>
> I've surmissed it must be vacuum related.. but anyone know how/where to
> check this?
>
> Joseph
>

Most "real" Jeeps don't even have working heaters until you get moving
;-)

Real Jeeps are heated by cordite and napalm.



--
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Helping is why we are all here on RAMJ+W, or should be.
"Ice" > wrote in message
oups.com...
> Most "real" Jeeps don't even have working heaters until you get moving
> ;-)
>

and by the brown stuff leaking out of your trousers :-)

"billy ray" > wrote in message
...
> Real Jeeps are heated by cordite and napalm.