Hi all,

Just went down the highway with the company truck (2013, 5.0). During acceleration say from 50MPH to 60MPH (approx. 1800 to 2000 rpm) a "chatter" noise emits from the right side of the engine. If I press the gas a little more then the noise increases and can be heard on the left as well. Any thoughts?

Thanks!

 

A few threads have popped up on here for the same issue and i dont think any of them has been resolved. Any chance its pinging for bad gas?

Here are a few threads i was able to find

https://www.f150online.com/forums/20...lp-please.html

https://www.f150online.com/forums/v8...-knocking.html

https://www.f150online.com/forums/20...5-0-pings.html

https://www.f150online.com/forums/20...2013-f150.html

 

The sound is reminding me of a pump losing suction.

 

Hey Transplant,

Have you spoke with your Ford Dealer about this? Shoot me a PM with your name, VIN, mileage, dealer, and best daytime phone number; I'll have a look.

Nick

 

I have had my 2012 5.0 to make what I called valve chatter on the right side under light acceleration usually going uphill at very low rpms. Both times I really noticed it, it was after putting 87 gas in my tank, not always a full tank. Never had it to do it at upper speeds and move to both sides of engine. I am on my second tank of 93 in the past 2 weeks and no noise so far. Also i removed my air aid intake and put the stock one back on to see how it goes. So far so good! I had my vin number checked with fords data base and they said nothing there. I found a couple other threads and sent pms to others that described what I did and they said higher octane gas cured theirs. Yours sounds more intense being on both sides. I hope you can find something out. Are you running off brand gas 87 and what about intake, is it stock?

 

I am having the same issue with my 2013 F-150 Lariat 5.0. Do you know what the issue is/ where it is coming from? Also an estimated cost to fix it?