A/C & fan problems
Thread Starter
4th Gear
Joined: Dec 2006
Posts: 4
Likes: 0
From: Sacramento, CA
A/C & fan problems
Relative newbie. Have a 90 C2, 964. In the past 2 weeks, have been having following symptoms: fan blower (interior) set to 1, 2, 3 or 4 and everything is fine. In some cases, put on a/c. Then all of a sudden, fan stops blowing, a/c is not working. Then comes back on. This is intermittent. No specific conditions bring this on. I hear no noises (such as squeals, etc) indicative of any bearings, etc going out.
Have read the various threads and began the seek/find/eliminate problems. All the fuses work. Rechecked connection and all seem in order. Noticed a big hole in duct. Not sure what the part is called. Please see attached photo
My question is....would this gap cause my problem I am experiencing? Has anyone had to ever replace? If so, what is the part called and is it a realtive easy fix from a DIY (with help of a mechanic relative)?
Thanks in advance.
Have read the various threads and began the seek/find/eliminate problems. All the fuses work. Rechecked connection and all seem in order. Noticed a big hole in duct. Not sure what the part is called. Please see attached photo
My question is....would this gap cause my problem I am experiencing? Has anyone had to ever replace? If so, what is the part called and is it a realtive easy fix from a DIY (with help of a mechanic relative)?
Thanks in advance.
Last edited by Dyish; Jul 9, 2007 at 03:39 PM.
Three Wheelin'
Joined: Dec 2003
Posts: 1,632
Likes: 2
From: Milton Keynes, UK
It's called "air duct" - part no: 964.106.403.02. It seems fairly common for it to split and it will destroy the air pressure from the main engine driven fan to the rear blower. If the rear blower doesn't produce enough air pressure on the differential pressure flaps the a/c and the internal dash blowers will switch off. It's not expensive and a fairly easy fit.
Regards
Dave
Regards
Dave
Technical Guru
Rennlist Member
Rennlist Member
Joined: May 2002
Posts: 8,138
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From: USVI
Originally Posted by Dyish
would this gap cause my problem I am experiencing?
6th Gear
Joined: Jul 2007
Posts: 6
Likes: 1
From: Savoie France
You have to check the central console A/C CU.
Take it off the dashboard and look out the back relay : 2 contacts to be cleaned.
Spray some KF contact on temp/fan rotactors
Blow compressed air on the small fan and air probe et look up on the weldings.
First do something on that hole
Take it off the dashboard and look out the back relay : 2 contacts to be cleaned.
Spray some KF contact on temp/fan rotactors
Blow compressed air on the small fan and air probe et look up on the weldings.
First do something on that hole
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Thread Starter
4th Gear
Joined: Dec 2006
Posts: 4
Likes: 0
From: Sacramento, CA
OK. Trying to find time to find out what's going on. Fixed hole, checked the fuses and still looking at contacts.
What I have recently noticed is that the a/c and fan blow fine when weather is cool and car has been sitting in garage. After it's been on the road for a while, it turns off. I am wondering if it has to do with engine heating up and causing something to get loose.
Does any experts out there have any other thoughts?
Thanks in advance.
What I have recently noticed is that the a/c and fan blow fine when weather is cool and car has been sitting in garage. After it's been on the road for a while, it turns off. I am wondering if it has to do with engine heating up and causing something to get loose.
Does any experts out there have any other thoughts?
Thanks in advance.
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