Blow off noise

eng53ine

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Truck started making a noise today sounds like its coming from the pass. side of truck sounds like a pressure blow off or like one of those automatic air wick thingys I'm guessing its the vacuum pump anything to check on it or any other ideas? only does it while driving wont do it at idle and does with or with out the a/c / defrost on
Thanks
 

Blowby

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Remove and inspect the EBP tube on passenger side. Probably eroded a hole in it or maybe it just backed out of the manifold.
 

eng53ine

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Remove and inspect the EBP tube on passenger side. Probably eroded a hole in it or maybe it just backed out of the manifold.

Would that be the tube that runs up in front of the hpop if so ill check that first had the hpop off about two weeks ago
 

ghohouston

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Yes thats the tube. It mounts up on the front cover, on the hpop gear bolt cover to be exact, and runs to the pass side manifold. I would also check the ebpv. You can un clamp the down pipe and see if its open or closed.
 

eng53ine

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Yes thats the tube. It mounts up on the front cover, on the hpop gear bolt cover to be exact, and runs to the pass side manifold. I would also check the ebpv. You can un clamp the down pipe and see if its open or closed.

Ok thanks
 

eng53ine

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Noticed it looked like my fuel filter was leaking replaced it didn't notice the sound could that have been the problem?
 

Southmike

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it would be if that woosh was fuel sizzling fast....not good and very doubtful.
my ebp line was gone , had a rusted hole on a spot I couldn't see easily.

other things ,
I had a loose boot clamp but that sounded more like a giant trumpet fart then a woosh.
then the occasional turbo stall can bark some pretty big noises.
 

eng53ine

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it would be if that woosh was fuel sizzling fast....not good and very doubtful.
my ebp line was gone , had a rusted hole on a spot I couldn't see easily.

other things ,
I had a loose boot clamp but that sounded more like a giant trumpet fart then a woosh.
then the occasional turbo stall can bark some pretty big noises.

Still investigating haven't noticed it since new fuel filter I'm gonna blame it on the cold weather moving in thanks for the help guys
Also wiggled the plug at the end of the ebp line if that would make a difference.
 
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eng53ine

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Well I think it's the fuel pump last time it did it it was at 1/4 tank, hit 1/4 tank this morning and it started it again stopped and fuel still did for around 30-35 min. Of a 1hr drive did longer for longer periods or almost nonstop until I'd hit a bump could feel it vibrating the floor board. Could this be a pick tube issue or is the pump goof out?


02 ccsb, lariat, 7.3 auto, 4x4, 4" duals, 6637,zoodad
 

eng53ine

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What's the easiest way to post a video guess you can't via tapatalk


02 ccsb, lariat, 7.3 auto, 4x4, 4" duals, 6637,zoodad
 

Southmike

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Quarter tank is the magic spot that issues arise if the foot fell of your pickup. Have you done the hutch and harpoon mods?
 

eng53ine

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Quarter tank is the magic spot that issues arise if the foot fell of your pickup. Have you done the hutch and harpoon mods?

No I haven't done them haven't even looked into them yet honestly, it done it after I filled it up too and on the way home it didn't do it till I hit the slower roads mainly in turns and bumps had no effect in stopping it.


02 ccsb, lariat, 7.3 auto, 4x4, 4" duals, 6637,zoodad
 

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