Weird Sound(Muffled Explosion?)
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Mountain Pass
Joined: Nov 2011
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From: Rudy, AR
Weird Sound(Muffled Explosion?)
My F250 with 6.0 PSD after having oil cooler,EGR cooler,and Egr valve all replaced is making weird sound I can only describe as a muffled explosion. I do not know if I am just paying more attention to my engine after having all the work done, or if this is a new thing? Engine?Truck is making weird sound, seems to be coming from the passenger side of motor.Have to really listen for it at low idle seems to be at 15 to 20 second intervals,can hear it pretty well at high idle, on smooth highway(if you can find one) can hear it fairly well if listening for it. It sounds like a very muffled explosion, there may be a slight variation in RPM but is hard to tell. Any ideas guys?
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Mountain Pass
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From: Rudy, AR
Duke I am not sure what sound you are referring to for sure but I just went and tried the key on like you spoke of and the only sound I heard was the clicking of the fuel pump and then another sound shutting off followed by a switch like when it ends.But the sound I am describing as an explosion is an actual "popping" sound, very similar to hitting(pretty hard) a crease/crack in the highway, coming from the passenger side of engine compartment.
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I know exactly what sound you are talking about! My 04 did the same thing way back when it use to run good and put a smile on my face to drive. Anyway never understood what or where it was coming from but it was very noticeable at Idle and very predictable as way of timing. The your description of the noise is good but the one thing that use to come to mind when I heard it was like a gas powered pressure washer pump building up pressure then bleeding it off. Come to think of it maybe the the lack of this sound on my truck now has something to do with it running like crap now! Maybe a HPOP thing?
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Mountain Pass
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From: Rudy, AR
Duke I have tried and tried to record the sound but have been unable to do so.Today Zhilton put the AE to it and nothing, could not even get the sound while he was with me(Naturally)But on the upside, everything checked out OK. Kudos to Zack...........Reps coming your way Zack since you would not accept anything else..........
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From: mckenna wa
That figures. Good job Zach I would Rep you if I could. Maybe somebody else will read this one day and Rep you for me.
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Mountain Pass
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From: Rudy, AR
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From: Houston, TX
could be jus the vacuum pump solenoid going out if ur talking bout the 4wd. or it could be the vacuum pump itself?
or maybe u needed to bleed some air out? when u change tat oil cooler, or anytime u open up the heads, ur gonna have air in ur system. when work is done, ur gonna need bout 500 miles to completely bleed ur engine of all tat air.
not to make u paranoid, but i dunno if the mechanic torqued everything exactly as per ford specifications. best of luck. hope it dont come back again. i hope everything is alright for u pal.
or maybe u needed to bleed some air out? when u change tat oil cooler, or anytime u open up the heads, ur gonna have air in ur system. when work is done, ur gonna need bout 500 miles to completely bleed ur engine of all tat air.
not to make u paranoid, but i dunno if the mechanic torqued everything exactly as per ford specifications. best of luck. hope it dont come back again. i hope everything is alright for u pal.
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