[DML] Re: AC blows intermittently

["David Teitelbaum" <jtrealty@xxxxxxxxxxx>]

If the fan speed isn't changing then the duct actuators are moving
when you accelerate. They are not supposed to be affected by momentary
lapses in vacuum. The vacuum source is from the vacuum resovoir in the
left pontoon ahead of the vapor cannister. I would suspect some kind
of a vacuum leak in the hose from the resovoir and/or a problem with
the check valve or vacuum resovoir itself. Check the vacuum line going
to the modulator on the front of the automatic transmission. There is
a short piece of rubber hose coming off the intake maifold to a metal
pipe and then after it gets to the front of the trans there is another
short piece of hose connecting it to the modulator. The rubber hoses
fall off or get old and crack. You may also have to lubricate or
rebuild the mode switch. You may have also knocked off a vacuum hose
under the dash. 
David Teitelbaum
vin 10757 


--- In dmcnews@xxxxxxxxxxxxxxx, "Greg Linstad" <glinstad@xxxx> wrote:
> After working perfectly last year in VIN #6214 (automatic trans), my AC
> now blows steadily at idle or coasting at any speed, but rapidly slows
> down to almost no air movement upon acceleration. It acts like old
> vacuum actuated wipers where going up a steep hill made the wipers stop,
> 






To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/dmcnews/

<*> To unsubscribe from this group, send an email to:
    dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/