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Old 11-02-2010, 06:33 PM   #26
ryans69chevy
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Re: Something seems wrong...

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Originally Posted by Stocker View Post
Have you verified your actual speed with a GPS or by time between mile posts? Maybe you're running along at 95 or so, which would explain the truck being so noisy.
haha. well I'm fairly certain it's almost dead on. I travel 25 miles to school everyday and it takes me just over 25 min. (The speed limit slows down to 55mph the last 8-10 miles).

My exhaust shouldn't have a leak...

The only other thing that I could think that could be effecting this is maybe my lifters. They sound awful, or at least I think that's what is causing a really bad sound. Everytime I accelerate it sounds thug-thug-thug-thug or it seems like there is a gap of air being released or something. I don't know how to really explain this...Has anyone else ever had this problem? Maybe this problem wouldn't have anything to do with my tach, the thing just could be a piece of junk as I only spent $20 dollars on it.

From the beginning I was planning on buying the full instrument cluster that comes with the battery gauge and oil pressure and even the built in tachometer. Does anyone know if these built in tachs are pretty accurate?? Or would it be better to buy a really nice tach and put it on my steering column?
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Old 11-02-2010, 07:54 PM   #27
Stocker
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Re: Something seems wrong...

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Originally Posted by ryans69chevy View Post
My exhaust shouldn't have a leak...

Everytime I accelerate it sounds thug-thug-thug-thug or it seems like there is a gap of air being released or something. I don't know how to really explain this...
Awfully hard to diagnose a noise over the internet, but you seem to be describing an exhaust leak, possibly at the manifolds. If so, it should be slightly louder on cold startup. If you're quick, you can carefully feel all around each manifold for escaping air before it gets too hot. Don't touch them, just feel for little blasts of air.
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Old 11-02-2010, 10:38 PM   #28
ryans69chevy
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Re: Something seems wrong...

Quote:
Originally Posted by Stocker View Post
Awfully hard to diagnose a noise over the internet, but you seem to be describing an exhaust leak, possibly at the manifolds. If so, it should be slightly louder on cold startup. If you're quick, you can carefully feel all around each manifold for escaping air before it gets too hot. Don't touch them, just feel for little blasts of air.

I guess I never really thought that noise could be an exhaust leak... That would be a realieve if it turned out the noise was from the exhaust. Then I know I don't have to go into the engine very deeply. I'll check for one tom. hopefully I can get it pin-pointed. If not I'm coming to you and you can fix it!
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Old 11-03-2010, 01:35 AM   #29
Stocker
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Re: Something seems wrong...

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Originally Posted by ryans69chevy View Post
I'll check for one tom. hopefully I can get it pin-pointed. If not I'm coming to you and you can fix it!
You have a long drive ahead of you in that noisy truck!!
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