Tip & How-To about Buick Park Avenue
How to recognize when your vehicle is having a vacuum leak. Contrary to many of the ASE professional, vacuum leaks can lead to serious engine performance problems, and even damage if not repaired. However vacuum leaks aren't always easy to spot.
As the article would suggest, a looping idle is the first sign of a bad vacuum leak. This usually occurs when the vehicle is in park and you first start out for the day.
A bad vacuum leak can also leave you stranded, can cause sudden engine shutdown, no start or hard start situations, and in some rare cases, transmission and brake failure, and no cruise control. A bad vacuum leak can also be extremely dangerous when driving at high speeds on the freeway, because of sudden engine failure. Plus cause the computer to seriously malfunction, since highly computerized cars like Buick's heavily rely on proper vacuum compression.
I currently have a Buick Park Avenue with a bad vacuum leak because of damage caused by the mechanics at Mark Miller Buick/Pontiac in Salt lake City, while their mechanics were doing clumsy work on my vehicle . I was very firm with the dealership letting them know I wasn't going to put up with mediocre service, being that I have spent a lot of money in car repair and maintenance at that dealership . In the hundreds of $$$$$$ in fact.
The mechanic tried to force the vacuum hose back onto the central vacuum switch with a screwdriver, ( a defiant no no!) breaking one of the vacuum hoses connection, off of the very rare and hard to find, vacuum switch. The mechanic also only put one of the vacuum hoses on halfway. The number one rule in mechanics, DON"T FORCE ANYTHING, because it can break!
Needless to say I was stranded three blocks from home, because of the vacuum leak, and contrary to the ASE guys popular myth, the vacuum leak created a no start situation, and I had to call AAA to tow it home.
With the broken part, the looping idle has returned and frequent engine stalling is very much a problem.
I finally got aggressive in my speech with the dealership the day I was stranded, who is now making emends for the sloppy labor that was performed on my car.
So again contrary to popular myth, a bad vacuum will cause sudden engine stalling and can leave you stranded anywhere.
Learn to recognize the signs of a vacuum leak before problems become severe.
Posted by Jason W on
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