Thread: Knock at idle

Got my oil changed today at dealer.when i got home today hearing a sporadic knock at idle. Oil level is good . Any ideas ?

----------

2013 150 with 5.0

Originally Posted by fordrules

Got my oil changed today at dealer.when i got home today hearing a sporadic knock at idle. Oil level is good . Any ideas ? ---------- 2013 150 with 5.0

I would wait about a week if it's still there I would take it back. My mom's explorer did that for a few days. Then it was quiet. Although I did it myself.

Went away after a day or so.

Originally Posted by AlbertaOilPatchF150

Could be the start of the "normal" 5.0 knock. A lot of them do it, some are really bad, mine isn't terrible but noticible.

As you know, I don't know nothin bout nothin. However a "normal" and "knock" don't go together unless a diesel.

Originally Posted by fordrules

Went away after a day or so.

yay I was right for once

Originally Posted by DWC (donewithchevy )

I know many with the knock now ( 11's, 12's, 13"s and 14's) Your the 6th person I know of that the knock started after dealer service oil change,( mine was after the first service) ..... Including myself. Maybe it was always there and maybe it showed up after but one things for sure, ........like mine and the others I know, sometimes you'll hear it and other times it's barely audible , but it WILL be back. I'm not so worried about it really, but will be pointing it out at next service sometime over the next two weeks, along with an intermittent shudder I've been having at different shift points that I can now reproduce with heavy throttle from first to second. I'll update this thread after the service and let y'all know what they say. And to me seems to be louder or shows up when up to temp mostly. But have , although not often , noticed it at cold idle. Also it's louder in park and neutral and quieter in gear . At least this is what I've noticed.

Mine does it at idel too. If it's for more than 5 mins. I had the shutter in the tranny to. It also made a horrible thump as it downshifted into first while braking. They put it in the computer and fixed the shift prob. It still a little faint. I feel like it's still there. Slightly. I also think I'm very picky. So. Now? So far so good

Originally Posted by Joe Grasso

Mine does it at idel too. If it's for more than 5 mins. I had the shutter in the tranny to. It also made a horrible thump as it downshifted into first while braking. They put it in the computer and fixed the shift prob. It still a little faint. I feel like it's still there. Slightly. I also think I'm very picky. So. Now? So far so good

Just like the 5.4 had a ticking the 5.0 has a knock? No!!! We are not having a repeat of that engine...ever. Damn Engineers lol

Dodge Sucks, Chevy Swallows, Toyota's the Turd

Originally Posted by Joe Grasso

Mine does it at idel too. If it's for more than 5 mins. I had the shutter in the tranny to. It also made a horrible thump as it downshifted into first while braking. They put it in the computer and fixed the shift prob. It still a little faint. I feel like it's still there. Slightly. I also think I'm very picky. So. Now? So far so good

Joe,

If it's for more than 5 mins. What does that mean?

When I think about odd noises, I think problems. I think of an engine as quiet running with the exceptions of sucking air and blowing exhaust. Sure, the fan makes noise, the belts can too. Who care? But a knock(of pistons) is caused by exploding gas and hard on the engine as is sound in the valves or bearings.