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Re: NOISY EXPANSION VALVE (archive)
[ Follow Ups ] [ 8-series (E31) Message Board ] [ Msg. Board FAQ ]
Posted by Len Cacioppo on August 06, 2000 at 22:41:42:

In Reply to: NOISY EXPANSION VALVE posted by JOHN THOMPSON on August 06, 2000 at 18:52:45:


WITH THE AC ON IN MY 93 850 ,IT HONKS INTERMITTENTLY.THE DEALER SAYS ITS THE EXPANSION VALVE,HE ALSO SAID REPLACING IT MIGHT NOT CORRECT THE PROBLEM.CAN ANYONE SHED SOME LIGHT ON THIS ANNOYING PROBLEM?

Just had this done a little while ago (less than 2 months). The operation was a complete success - big bucks later (over a grand). I am not sure what the valve does, but I can tell you where it is...right up in the back of the dash. Not an easy place to work for a mechanic. If your dealer is telling you it may not solve the problem then they have not diagnosed it properly. If the valve is broken (mine was - caused the same noise you described), replacing it will solve the problem. It took two days to complete the work - and now I have creaks in my dash that they are trying to tell me were there all along. I will NEVER have my local dealer do work on my car again! (Can anybody recommend an excellent shop in the SF Bay Area - I am thinking Bavarian Professionals, but I have no experience with them).


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