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03-04-2014, 06:53 PM
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Registered User
Join Date: Jan 2010
Location: Kansas City, Mo
Posts: 284
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03 Tahoe
I have an 03 Z71 Tahoe 5.3L flex fuel and I am trying to find the intake manifold vacuum spec. My current map sensor reading at hot idle in park is 10.0 in/hg. I have tried google and it keeps giving me fuel pressure specs. I even contacted two local dealers,twice, and they have never returned my calls. Even went to one of them and I was told to bring my vehicle in and they would look at it. I just want to confirm what the reading is suppose to be so I know where best to go next on my diag. I have found no vacuum leaks, no ses light, just a driveability issue that has been confusing to figure out. The vacuum reading was the only reading that seemed wrong.
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Thank a Veteran. They have sacrificed more than you will ever know! 2003 Chevy Z71 Tahoe 190,500 miles 2002 Chevy Silverado 1500 4x4 230,000 miles 1987 custom built Silverado 4x4 435,764 miles 1985 K5 Blazer 396 bb 4x4 project 1982 K5 Blazer Silverado 4x4 519,348 miles |
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