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Old 01-29-2004, 10:57 PM   #1
DarkAngel
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Member#: 38792
Join Date: Jun 2003
Question Help me with these vacuum readings??

So my car had heads and valves done and since I think my vacuum has been off. It reads when the car is warmed up -.67 to -.70 bar. Now it would read that -.70 bar when the car is really hot, like a hard freeway run, and less when not boosting much. (this is the idle reading). Well anyway if it was the intake manifold gasket thats leaking I dont see why it would get worse because that gasket would expand under heat. So now I think its the vacuum hose that is leaking somewhere. I also think I hear the hissing sound too when the car is idle. The rest of the time I get full boost.

BTW this car is STOCK

help me out guys
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Old 01-29-2004, 11:00 PM   #2
DarkAngel
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also my car takes a WHILE to warm up. maybe up to 10 min for the needle to be at operating temp with me just sitting there for maybe 4 min and driving below 3K RPMs the other 6 min
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Old 01-29-2004, 11:50 PM   #3
DarkAngel
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ttt
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