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GMFS Military Member
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Discussion Starter · #1 ·
not sure when this started really but its been happening more often. When I accelerate half throttle or cruise at part throttle etc, there is a hissing sound that happens from under the hood. If I floor it or let off the gas it stops. Only happens at partial throttle. Im pretty sure its not an intake leak. Im wondering what else it could be. When its in park and I rev it , it wont make the noise so Im a little stumped. Belt? Exhaust leak? anything im missing?
 

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Its probably the cold air intake. :shrug:

Check around all the connections on the cai for leaks. But its probably just the air going through the cai.
 

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GMFS Military Member
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10,899 Posts
Discussion Starter · #6 ·
Its probably the cold air intake. :shrug:

Check around all the connections on the cai for leaks. But its probably just the air going through the cai.
Ill check again, i dont know how people havs TBS's. This is annoying.
 
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