2000 Grand Marquis Hissing Dash

[2000marquis]

Ok here is my problem

when i press the gas i do not hear the hissing noise
but when i let off the gas i hear the hissing noise

it does it with the a/c on and does it with the a/c off
but once i turn on the heat it never does it
what could it be ???? somehting to do with my a/c vacuum lines??

[86GmLsCoupe]

I'm really not familiar with the newer panthers but I'd look into the automatic parking brake release (99% sure it has it). There should be switch thats tied into the shift lever that will release the parking brake when you put the car into drive. They will fail over time and develop slow vacuum leak hisses while you're driving. Also there's the the HVAC vacuum lines but honestly they really don't seem to fail all that often unless you've dissembled the dash before.

[Lincolnmania]

leaking vacuum motor for the climate control is probably what is leaking......i have replaced a few on the 98-02 cars

[2000marquis]

leaking vacuum motor for the climate control is probably what is leaking......i have replaced a few on the 98-02 cars

that is what i am leaning towards now what would i have to do to fix that problem buy a new climate control box??

now i had another used one at the house and i took the one out of my car and put the other used one in and it still does it

but there is like 4 hoses behind the climate control box and there is one port open thaty does not even have a hose is there suppost to be a hose there?? now when i disconnected the box i heard the sucking noise like vacuum

what should i do b/c this is really!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111 annoying

thnaks alot

vacuum motor is there on the climate control?? or it located some where else in the car??

[Lincolnmania]

the part that was leaking and hissing and making this horrific whistling noise was a 2001 crown vic hpp........it is a vacuum motor.....buried up under the center of the dash. it is not the control unit......this thing looks like a little silver can with a vac hose and an arm attached to it

[2000marquis]

the part that was leaking and hissing and making this horrific whistling noise was a 2001 crown vic hpp........it is a vacuum motor.....buried up under the center of the dash. it is not the control unit......this thing looks like a little silver can with a vac hose and an arm attached to it

ok now do i have to take the whole dash apart to get to it???

and when i call the parts store what should i ask for a vacuum motor??

can i reach it without takeing the most of the dash off??

[Lincolnmania]

need to call the dealer
dash does not need to come out.....just need to be a contorsionist and have avg size hands to get in there

[2000marquis]

need to call the dealer
dash does not need to come out.....just need to be a contorsionist and have avg size hands to get in there

thank you very much i will be calling tommorrow to order

[2000marquis]

can you tell me the main name for this part b/c i have been looking all over the internet and Ford oem parts websites and i can not seem to find this part help me out thanks

[2000marquis]

evap motor or condenser motor??? is it one of these?? or is it just a can?

[Lincolnmania]

1W7Z19E616AA for non atc
XW7Z19E616BA with atc
check teamfordparts.com

[2000marquis]

what is ATC???

[2000marquis]

automatic traction control??? i have a button in glove box so do i have ATC or I Don't?

[79lincolnlover]

I think he means Automatic Temperature Control.

[2000marquis]

this part number XW7Z19E616BA with atc is for a blend door actuator this this what i need????



and the thing that looks like a can she said at the ford palce is called a vacuum control motor

there is one for

1. floor

2. winsheild defrost

3. recycling


what do i need????