The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

hissing from both sides of the firewall 700

posted by  Rtilghman on  Wed Jul 31 07:51 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]


so I've been noticing a hissing noise recently when I shut teh car off and have been trying to track it down. Hoping someone with more experience can offer some insight.

In the engine compartment the hissing noise appears to be coming from a little valve thing that looks like the fuel pressure regulator and sits in the middle of one of the two coolant hoses that go into the firewall. This would be the heater valve, correct? Does the hissing mean it's shot or is there something else at work?

On the cabin side the noise appears to come from behind the climate control board. I pulled the board to take a look and it was noisier once I got it open, but I couldn't find anything that appeared to be the source of the noise. Kinda tough to tell since its a pain in the arse to get past the control console (no slack). Is it possibel the noise is a byproduct of the engine compartment/heater valve hiss, or is this something else. I seem to remember hearing the engine compartment hiss first (before teh cabin hiss became apparent), so is it possible a shot heater valve killed a related product on the cabin side?

Any help is greatly appreciated. Thanks in advance for all replies.

-rt






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.