obvious vacuum leak
08-23-2013, 01:33 PM
#1
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obvious vacuum leak
As a fairly new owner of a 1999 Boxster, a friend of mine had an incident that I need to help fix. After having lowered the car, he hit something underneath the driver's side on a ramp going up to his garage. ( the garage is somewhat elevated... long story ).
Upon hitting this, immediately the engine started to not idle correctly. This lead me to believe that a vacuum line of some type had been broken. Upon closer examination I did find a line that runs behind the driver's side rocker panel was broken and leaking. As far as I can tell, I broke a flange which joined two lines in that area. Also on the ground after the damage was a black plastic " holder" of some type. The flange on the lines were broken too. They are a white type of collar. I was successful wrapping the lines together with electrical tape and the motor now idles just fine. My question is, what is this line? And, what does it do? I need to track down the parts to repair it properly. I didn't show a check engine light at any time. Thanks for your help identifying this.
Upon hitting this, immediately the engine started to not idle correctly. This lead me to believe that a vacuum line of some type had been broken. Upon closer examination I did find a line that runs behind the driver's side rocker panel was broken and leaking. As far as I can tell, I broke a flange which joined two lines in that area. Also on the ground after the damage was a black plastic " holder" of some type. The flange on the lines were broken too. They are a white type of collar. I was successful wrapping the lines together with electrical tape and the motor now idles just fine. My question is, what is this line? And, what does it do? I need to track down the parts to repair it properly. I didn't show a check engine light at any time. Thanks for your help identifying this.
08-23-2013, 02:26 PM
#2
Race Director
My WAG is the line is a gasoline vapor line based on your description of where it is.
The lines must be secured by more than tape. They should be secured in the manner they were when the car came from the factory. It is seldom a home mechanic can improve on this. If they are not secure properly the lines will move/flex and fail or what they connect to will fail from the flexing. In either case there will be another leak.
The lines must be secured by more than tape. They should be secured in the manner they were when the car came from the factory. It is seldom a home mechanic can improve on this. If they are not secure properly the lines will move/flex and fail or what they connect to will fail from the flexing. In either case there will be another leak.
08-23-2013, 04:04 PM
#4
Race Director
You will probably have to visit a Porsche dealer parts department to have the counter person look up the part # for you. The online parts catalogs may not list/show every part and part #.
08-27-2013, 03:06 PM
#6
Burning Brakes
How does the brake pedal feel? There is a large line running back that is for the brake booster. If the pedal is hard that one is broken. There are also powersteering lines that run there.
09-19-2013, 07:28 PM
#7
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It's the power brake vacuum line - I've had one break on my car. It was a bitch to find...
You have to order the whole front section of the line - that's the one that has the white connector. It feeds up into the front wheel well where it goes into the booster. Part number 996 355 571 05 for my '99.
You have to order the whole front section of the line - that's the one that has the white connector. It feeds up into the front wheel well where it goes into the booster. Part number 996 355 571 05 for my '99.
