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| Author | Topic: Hissing - vacuum leak? |
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Dave Wendel Prowler Newbie From:Redmond, WA |
posted 09-19-2000 03:03 PM
    
I have a consistent hissing-like noise around the manifold area (sounds like a vacuum leak...) The Plymouth tech says this is normal for the 3.5V6 (M300 / Prowler). Is this normal? |
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Nyle Wing Prowler Junkie Personal ScrapBook From:USA. |
posted 09-19-2000 04:22 PM
Hi Dave, Glad you found the POA mine is very noisy to, sounds like it's sucking a lot of air. runs just fine so it must be normal. ------------------ |
Mike Krehel                    POA Site Supporter The World's Quickest Prowler (11.65 sec) and Administrating Kat Personal ScrapBook From:United States |
posted 09-19-2000 04:23 PM
Hi Dave and welcome to ProwlerOnline. A loud hissing sound is not normal. The only thing I hear under my hood is the sound of air being sucked into the air filter. Try taking a small hose (like fish aquarium air hose) and put one end to your ear and move the other end around the entire intake manifold to locate the leak. The intake manifold is made of plastic, and may have a hairline fracture. I hope this helps. Let us know what you find out. ------------------ |
Al Becker Prowler Junkie Personal ScrapBook From:Scottsdale, AZ USA |
posted 09-19-2000 05:59 PM
TSB 14-02-99 Hiss noise from engine when idling 98-99 LH 99 PR Involves replacing the throttle body assembly I ave had this done to my car runs much better and does not sound like a leaking tire. ------------------ |
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Dave Wendel Prowler Newbie From:Redmond, WA |
posted 09-19-2000 09:49 PM
I tried the aquarium hose and it worked well but I didn't find any cracks. Most of the air volume seemed to be coming from just behind the manifold but not emanating from the air cleaner assembly. I will keep looking and will approach the dealer again about the TSB. Thanks for the help. |
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