This is topic what are the symptoms of a bad bypass valve? in forum Tech Talk at Northern California Ford Owners .
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Posted by Mr JoCo (Member # 1549) on
:
on a supercharger ![[Confused]](confused.gif)
for example how would a car act?
[ June 01, 2005, 11:47 PM: Message edited by: Mr JoCo ]
Posted by mtbaughs (Member # 4052) on
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you need to test it with a vacuum pump. Make sure the vacuum source to it comes directly off of a manifold source....
Posted by John91coupe (Member # 18) on
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If it is stuck open you will have very reduced boost pressure. If it is stuck closed you will have bad driveability in cruise and low throttle positions. As mentioned, best to take it off and check operation with a hand vacuum pump and also make sure your vacuum hookup location is working.
Posted by SALEENx5 (Member # 1605) on
:
When the by-pass valve stuck closed on my S351, it actually blew out the front oil seal on the supercharger after letting off on the throttle while under boost.
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