Re: IML: odd vaccum-related behavior (82 Imperial)

[Hank.Leskie@xxxxxxxxx]

You may try to spray a little ether around the vacuum lines while the car
is running. If the car speeds up, you have found the source of the leak. Be
careful though, it is highly explosive.


Hank Leskie
62 Crown convert



|---------+----------------------------------->
|         |            Elijah Scott           |
|         |            <imperial1971@xxxxxxxxx|
|         |            >                      |
|         |            Sent by:               |
|         |            mailing-list-owner@impe|
|         |            rialclub.com           |
|         |            18/05/2006 07:48 a.m.  |
|         |            Please respond to      |
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  |        Re: IML: odd vaccum-related behavior (82 Imperial)                                                            |
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Nat Hall <nathall@xxxxxxxx> wrote:
 I haven't had a chance yet to play with finding out why my carb-converted
 '82 isn't passing the smog test, but in the meantime I've noticed
 something very odd. On hard acceleration, like on a freeway on-ramp with
 almost-full-throttle to full-throttle acceleration, if my A/C is on
 blowing out the dash panel vents, air flow direction will temporarily
 switch to blow exclusively from the floor vents (isn't this the "default"
 position?). Is this a result of a vaccum leak somewhere? If so, could this
 be a cause of my emissions test failure?
You may well have found the cause of your emissions test failure. The
position of the vents is controlled by engine vacuum -- so if the air goes
from the dash vents to the floor vents when you hit the gas, there is
definitely a vacuum leak.

Tracking this down will likely be an exciting exercise in frustration.  :o)
You are most definitely going to need a shop manual with a schematic of the
vacuum lines.

Or you may get lucky and spot it right away on a visual inspection.  I
would start with the simple stuff and get under the hood and look at every
vacuum hose and connection that you can see.

Good luck!

Elijah


Imperial Power Window Switch Repair

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