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AC Compressor


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utfootball4
User

Jul 27, 2011, 8:47 AM

Post #1 of 13 (2243 views)
AC Compressor Sign In

We test drove a used 2006 325i bmw that had 80k and while driving the car it would jerk when at idle - only when the AC was on. This is what the dealership had to say:

Its the air compressor turning on and off. When the set temp is reached, it deactivates the ac compressor, and when temp drops-turns ac compressor back on. This causes a load on the engine since the compressor is driven by the belts of the main crankshaft. So when ac compressor turns on, it puts a load on the engine and that is what your feeling.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 27, 2011, 9:47 AM

Post #2 of 13 (2230 views)
Re: AC Compressor Sign In

To heck with that dealer. Car is made to cover the load and maintain idle. Vehicle is either way overcharged to cover a problem or if not now probably has a seizing compressor,

T



utfootball4
User

Jul 27, 2011, 9:49 AM

Post #3 of 13 (2224 views)
Re: AC Compressor Sign In


In Reply To
To heck with that dealer. Car is made to cover the load and maintain idle. Vehicle is either way overcharged to cover a problem or if not now probably has a seizing compressor,

T


Can you please explain what you mean by "overcharged to cover a problem"?


utfootball4
User

Jul 27, 2011, 10:38 AM

Post #4 of 13 (2217 views)
Re: AC Compressor Sign In

BTW, tech didn't find any issues with it and car did not throw any warning codes yesterday.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 27, 2011, 10:41 AM

Post #5 of 13 (2215 views)
Re: AC Compressor Sign In

It may be a leaker and dealer may have overcharged it just to let it leak down and work and you can't get away with that as compressor could be choking on liquid when it should be vapor.

Can't say much for sure on this and no telling who has done what? Big bucks to fix A/C so if not purchased yet pass on that car. Could be that engine can't compensate for the load and be another huge buck problem??

T



utfootball4
User

Jul 27, 2011, 10:48 AM

Post #6 of 13 (2210 views)
Re: AC Compressor Sign In


In Reply To
It may be a leaker and dealer may have overcharged it just to let it leak down and work and you can't get away with that as compressor could be choking on liquid when it should be vapor.

Can't say much for sure on this and no telling who has done what? Big bucks to fix A/C so if not purchased yet pass on that car. Could be that engine can't compensate for the load and be another huge buck problem??

T


I'll see, i doubt it's anything engine related. Car drives great and only does this when the AC is on and car is at idle and it doesn't do it non stop.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 27, 2011, 11:08 AM

Post #7 of 13 (2204 views)
Re: AC Compressor Sign In

You really don't need to keep 2 threads going on the same subject.



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utfootball4
User

Jul 27, 2011, 5:40 PM

Post #8 of 13 (2186 views)
Re: AC Compressor Sign In

nothing to do with AC - its the ignition coil..


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 28, 2011, 5:56 PM

Post #9 of 13 (2173 views)
Re: AC Compressor Sign In

A/C and ignition coil - WRONG!!!!

Tom



utfootball4
User

Jul 28, 2011, 6:24 PM

Post #10 of 13 (2163 views)
Re: AC Compressor Sign In

whar r u talking about?


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 29, 2011, 6:54 AM

Post #11 of 13 (2149 views)
Re: AC Compressor Sign In

Your reply says it all - you don't know Jack and should have anything that moves fixed by a pro! Nuff said,

T



utfootball4
User

Jul 29, 2011, 7:03 AM

Post #12 of 13 (2143 views)
Re: AC Compressor Sign In

Content removed by me! Up yours!

Tom


(This post was edited by Tom Greenleaf on Jul 29, 2011, 11:44 AM)


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Jul 29, 2011, 11:42 AM

Post #13 of 13 (2137 views)
Re: AC Compressor Sign In

Can you spell banned? You are now. I started this site and you can go to hell!

Tom







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