Engine Bump?
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Engine Bump?
On the highway last night and noticed what seemd to be an occasional bump in the engine. Kinda reminded me of my 02 7.3 when the cam position sensor was going. Not as bad, but seemd to happen once and a while. So slight I almost suspected road bumps but figued I would ask here and see if this is happening to anyone else.
09 5.4 FX4
09 5.4 FX4
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Joined: Apr 2010
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Yes your truck is making the noise
Yes you are correct. Our 09 F150 almost stalled in rush hour after heavy stop and go traffic last night. It's currently at the dealer will add more after truck is returned to me.
On the highway last night and noticed what seemd to be an occasional bump in the engine. Kinda reminded me of my 02 7.3 when the cam position sensor was going. Not as bad, but seemd to happen once and a while. So slight I almost suspected road bumps but figued I would ask here and see if this is happening to anyone else.
09 5.4 FX4
09 5.4 FX4
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Truck runs great otherwise, just seems for no reason, to miss once and awhile. The problem with codes, as usual, it will likely not throw a code unless the miss is actually happening.
Cargo Master
Joined: Sep 2005
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From: Montana
Could be a bad COP... had one going bad on my 2000 that made it feels almost like the trans was slipping. Had the dealer do a stress test on the COPs and sure enough, one was missing under load. Didn't trigger the CEL but I think there was a code to be read by the dealer's scanner.
Posting Guru
Joined: Feb 2005
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If you're having an intermittent miss, chances are there's a code logged (unless you've disconnected the battery). If not, they can attach a datalogger that will record even more information until the problem occurs.
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