Loud squeal
09-01-2009, 07:14 PM
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Loud squeal
Coming from my truck after it's warmed up. It was running fine until I put on a TBSS intake. Can't figure how switching intakes would have caused this. I'm afraid it might be a main bearing as it is loudest under the truck. At first I though it might be the alternator but I have verified it isn't anything driven by the main belt. 
09-01-2009, 07:22 PM
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No I'm not 100% sure of that. Guess I can run and get some new intake gaskets although the RPM on decel problem doesn't seem to be a problem any longer. With the squealing as loud as it would be hard to believe it's an air leak but anythings possible. I know some new gaskets are sure cheaper than a new engine.
09-01-2009, 10:39 PM
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Well I think I figured it out and it wasn't the intake gaskets although it was probably good I replaced them anyway. Seems the port I chose to use for the pcv/crankcase vent in the passenger side valve cover is too much vacuum for it. I unhooked it and went for a drive and no more squeal (at least not yet). Now I need to figure out where to hook that thing up.
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09-01-2009, 11:04 PM
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I'll sure have to figure something out. The TBSS intake doesn't have the same port for that vent like the truck intake so I tried using a T off of the port on the top. Apparently that was a bad Idea.
09-02-2009, 11:15 AM
#9
There was a good thread around here not too long ago about the benefits of a properly working PCV system, I can't understand why anyone would want to eliminate it.
The hose going to the passenger side is just a vent, and the driver's side that has the PCV requires vacuum. I believe that the newer (than mine at least) trucks have a fitting for the vent on the throttle body. You could always drill a hole in the air intake tube and fab some sort of plastic fitting to plastic weld/hot glue/whatever, and run the vent hose to there, or get a newer throttle body, depending on what's available and will work on your truck...
The hose going to the passenger side is just a vent, and the driver's side that has the PCV requires vacuum. I believe that the newer (than mine at least) trucks have a fitting for the vent on the throttle body. You could always drill a hole in the air intake tube and fab some sort of plastic fitting to plastic weld/hot glue/whatever, and run the vent hose to there, or get a newer throttle body, depending on what's available and will work on your truck...
