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  1. #1

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    Vacuum line to washer fluid reservoir?

    To start, wow.. what a great site.. Found it a while back when I was looking up some information on my older 91 Grand Prix SE. Due to horrible up keep (before I got it) and some major problems I gave up on it, but was lucky enough to find a 1997 Grand Prix GTP via private sale with a little over 60,000 miles on it in great shape and was treated very well (soon to be treated better though )

    Anyway, not much of a automotive person and having a odd problem. Started with what I thought might be a leak in the washer fluid reservoir. Couldnt track it down, no cracks and no leaks in hoses. Asked a great friend (much more automotive knowledged) to take a look at it since I only got it a few weeks ago.

    Strange thing is, pump pushes fluid when reservoir is refilled to max and stops when it reaches emptyer state (about 50% full). While trying to track it down we both noticed the vacuum line going to the resorvoir and were curious what it was for. Anyway, filled resorvoir and started car and watched vacuum actually pull some washer fluid in :shock: . My friend has never seen the vacuum line going to a reservoir in other Grand Prix's.

    A family member has a 1997 Grand Prix GT and I dont remember seeing this in her vehicle but will check tommorow if I can see her vehicle in the day.

    Does anyone know what this vacuum line is for? And possibly why I am seeing tis strange problem?

  2. #2

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    Vacuum line to washer fluid reservoir?

    Sounds like some idiot hooked up a vacuum line to the fluid nozzle hose port on the fluid pump :?
    -Tony
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    '90 Turbo Grand Prix STE - Crane H260 Cam, Getrag 282 Swap, 1.6 Rockers, Intrax Front Lowering Springs, KYB GR2s, 34mm Sway Bar, CS FSTB, AWeb RSTB, ES Poly Sway Bar Bushings, Cooper Cobra 245/50s, Speed Primer, Hail Speed Dents, NFG Keyless Entry, Lots of Extra Wiring - Running once again! Sorta! Not really...
    '92 Gutless Supreme SL - RIP 5-10 | '90 Turbo Grand Prix - RIP 6-15-05

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    sl3196's Avatar
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    Vacuum line to washer fluid reservoir?

    Wonder if someone had alcohol injection hooked up??????????????? :shock:
    2008 Pontiac G8 GT - Roto-fab Intake, Superchips Cortex tune, Solo Axle-back Exhaust

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    Vacuum line to washer fluid reservoir?

    We did that on a friends 4cyl mustang that we turbo'ed. It stopped the knock. Very unrefiend but it worked
    &#039;89 Cutlass Supreme 3.1 2dr,&nbsp; &#039;90 GMC 4X4<br />&#039;84 K5 BLAZER 4X4,&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &#039;86 Vette<br />&#039;97 Saturn 5spd<br />

  5. #5
    Forum Moderator digitaloutsider's Avatar
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    Vacuum line to washer fluid reservoir?

    It is NOT a vacuum line. Every '97 I've seen has this same overflow tube. I'm not sure why it's there. It doesn't really do much of anything.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
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    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
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  6. #6

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    Vacuum line to washer fluid reservoir?

    Overfill line? I assume it shouldnt be running to the vacuum by the intake then.. Idiots that had the thing before me or something.


    For now we just disconnected it from the reservoir and put a stoper in the hose. Going to stop by my sister today who also has a 1997 GP GT (not GTP though) and quick take a look under the hood.

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    Forum Moderator digitaloutsider's Avatar
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    Vacuum line to washer fluid reservoir?

    No, it shouldn't.

    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  8. #8

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    Vacuum line to washer fluid reservoir?

    Yup.. thats it in the picture.. Not present on the GT but there on my GTP. Checkeed my sisters GT out this morning.

    For some reason there is a line going from it to the vacuum on the far side of the super charger. I take it this is not supposed to be there? Or is it that it should be there, but not sucking up my washer fluid?


    There are three vacuum lines coming off by the intake/supercharger. I have not followed the other 2, but are there supposed to be 3 like in my car or only the 2 if it has not been modified or altered?

  9. #9
    5speedz34's Avatar
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    Vacuum line to washer fluid reservoir?

    That's stock, my friend's 97 has that on it.



    It does nothing I know of never worried about it either.

    I bet it's a pump problem or a sensor level problem.

    FWIW: The '97's are wierder than all the other years.

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

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    Vacuum line to washer fluid reservoir?

    Yeah.. I see there are alot of differences in it compared to the 98-2003's... Everything works fine with the hose (vauum hose) disconnected from reservoir and corked/stopped. With it on, we have literaly watched it suck up some of the washer fluid and then after it gets about 1/2 empty the pump will not be able to pump until I take the vauum line off.

    Oh yeah: Havent said this yet.. Thanks for all the input/help from all of you.

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    Vacuum line to washer fluid reservoir?

    @5speedz34


    Hey, could you do me a favor (if you or him can check) and follow that line from your friends reservoir back to its next connection and see if it goes to the vauum by the intake?

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    5speedz34's Avatar
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    Vacuum line to washer fluid reservoir?

    Sure, I wish I would've read this today then I would've known.

    I looked at the line though, citing your post and I think it is a vacuum line.

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

  13. #13
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    Vacuum line to washer fluid reservoir?

    Quote Originally Posted by GutlessSupreme
    Sounds like some idiot hooked up a vacuum line to the fluid nozzle hose port on the fluid pump :?
    Look at your vacuum/washer fluid lines........
    Baby Daddy

  14. #14
    Forum Moderator digitaloutsider's Avatar
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    Vacuum line to washer fluid reservoir?

    It's some sort of overflow tube. Don't ask me why it's there, but all it is (from the factory) is a 6 or so inch hose that sits along the hood tray on the side of the engine bay.
    2006 Nissan Altima SE-R 3.5L 214ci VQ35DE DOHC 60 V6 | 6MT
    Raclingline HFPCs and Y-pipe, NWP VIAS delete, Goodridge SS brake lines, removed airbox snorkel, deburgered.

    1998 Jeep Grand Cherokee 5.9 Limited 5.9L 360ci Magnum Pushrod 90 V8 | 46RE | NV249
    Flowmaster 50 SUV muffler, 180 t-stat, CAI, does sick burnouts.

    1994 Ford Thunderbird SC Supercharged Intercooled 3.8L 231ci Pushrod 90 V6 | M5R2
    180 t-stat, intake, ASP UDPs, 10% S/C pulley.

  15. #15
    5speedz34's Avatar
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    Vacuum line to washer fluid reservoir?

    Quote Originally Posted by digitaloutsider
    It's some sort of overflow tube. Don't ask me why it's there, but all it is (from the factory) is a 6 or so inch hose that sits along the hood tray on the side of the engine bay.
    See that's what I would've figured too.

    Tony.V
    1992 Lumina Z34 |3.4L 207ci DOHC 60 V6; Getrag 284|
    1994 Pontiac Grand Prix GTP |3.4L 207ci DOHC 60 V6; Hydra-Matic 4T60E|
    1999 Chrysler 300M |3.5L 214ci SOHC 60 V6; 42LE|

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