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Click on image for the lowdown. 
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| | | Forums66 Topics128,035 Posts1,055,446 Members48,422 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Jan 2008 Posts: 165 Wrench Fetcher | | Wrench Fetcher Joined: Jan 2008 Posts: 165 | There may be a bleed off line from your dash valve that vents under the hood, if so and its leaking then the valve needs to be repaired or replaced. You'll need to find out what or where the air is coming from. | | |
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