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Old 04-09-2008, 01:18 PM   #1 (permalink)
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Default weird vacuum gauge reading

Hey guys have another strange problem with my car. When i first start my car in the morning my vacuum gauge read 20' like a normal reading. but after driving it for awhile, id say like half hour, the vacuum gauge goes up to 5 and stays there steady. it reads boost just fine but it wont come back down to a normal reading. car idles just fine at 800 rpm. but there is some hesitation at part throttle. I inspected my vacuum hoses there all good. now here is the strange thing. When i shut the car down for about 10 mins and re start it it will show a normal vacuum reading but then eventually climb back up to 5'. what does that mean>? thanks in advance
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Old 04-09-2008, 01:39 PM   #2 (permalink)
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bad gauge maybe... did you try another gauge yet, to see if your is just broken? where is the gauge hooked up, btw.



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Last edited by 99EJ6T; 04-09-2008 at 02:42 PM. Reason: spelled gauge wrong
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Old 04-09-2008, 01:40 PM   #3 (permalink)
I can't read...
 
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yea, whats your vaccum source?
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Old 04-09-2008, 02:05 PM   #4 (permalink)
 
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Agreed, vacuum source or bad gauge

Last edited by rvbtruck; 04-09-2008 at 04:31 PM.
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Old 04-09-2008, 02:54 PM   #5 (permalink)
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Quote:
Originally Posted by 99EJ6T View Post
bad gauge maybe... did you try another gauge yet, to see if your is just broken? where is the gauge hooked up, btw.

x2. Can you datalog with a laptop?That will tell you if it's the gauge if you don't have another laying around.
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