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 | | | mailing-list | |---------+-----------------------------------> >----------------------------------------------------------------------------------------------------------------------| | | | | | To| | mailing-list@xxxxxxxxxxxxxxxx | | cc| | | | Subject| | Re: IML: odd vaccum-related behavior (82 Imperial) | | | | | | | | | | | | | >----------------------------------------------------------------------------------------------------------------------| 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 Find Repair & Shop Manuals, Parts Books, History & More at The Imperial Bookshelf! My Collection of Imperials 1965 Imperial LeBaron 1967 Chrysler Newport Custom Sedan 1970 Imperial LeBaron 1971 Imperial LeBaron How low will we go? Check out Yahoo! Messengerâs low PC-to-Phone call rates. ----------------------------------------------------------------------------------------------------- The information transmitted is intended only for the person or entity to which it is addressed and may contain proprietary, business-confidential and/or privileged material. If you are not the intended recipient of this message you are hereby notified that any use, review, retransmission, dissemination, distribution, reproduction or any action taken in reliance upon this message is prohibited. If you received this in error, please contact the sender and delete the material from any computer. Any views expressed in this message are those of the individual sender and may not necessarily reflect the views of the company. ------------------------------------------------------------------------------------------------------- Ûiÿü0Â)©z¸ÉnmÊ&N¬ë,j°jËÛhÊÊØ^"j^®&¥1¨¥xËOæ¬z·©+h¨¥x%Ëb«©\æÜf§w*.®·¬¦ì{¥·¬ ªÞw ëÞ*'xúâ^ë,j¬jwZ¶Ög§¶Çè®Ø^Ù+-«h®Ë!¢é]mëÛhÁææjË^®)©z¸ÉnmÊ&N I@R -¢m§ÿâ«©\æÜoî˱Êâmèm