Volvo RWD Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 5/2021

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Any way to test 1993 240 inline pressostat WITHOUT draining a/c system?

posted by  vvpete on  Fri Jun 26 05:48 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Thu Jul 10 14:10 CST 2014
[RELATED]

If you mean by 'pressostat' the presure sensor in line before the orifice tube that controls the fan realy ground to switch the fan on, then yes, you need to dump all the R134 (not freon) from the system to replace it. Test with an ohm meter before & after switching the A/C system on, wait about 2-3 min, if it doesn't close( 0 ohms) then the ssytem pressure is too low or the switch is bad.

These rarely go bad, never heard of one going yet. It is much more likely that the system pressure is too low, and need service or charging.






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New Any way to test 1993 240 inline pressostat WITHOUT draining a/c system?
posted by  mr.zorak subscriber  on Thu Jun 25 12:25 CST 2009 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.