maplelakeduckslayer

Been doing some deep Googling, and it appears some Mini owners had similar issues with getting the timing chain/tensioner replaced, and still having a rattle at cold start. Rattle was coming from top of engine, and was traced to HPFP. Maybe my dealer is on to something

huntnrig

My truck did suffer the fuel-in-oil issue as was documented by two different dealers. I hope someone can find a fix.

maplelakeduckslayer

Mine does too I think. Seemed my oil was high when I checked, and I get a ton of oil picked up by the PCV system and deposited in my IC. Not exactly sure of the construction, but wondering if its possible for the fuel to drain out of the HPFP when it sits for a period of time into the crankcase...causing the oil level to rise. And causing the HPFP to make noise because its "dry" at first start.

snobdds

Does anyone know if the HPFP in the 3.5 ecoboost on the Taurus works on the F150 ecoboost? I haven't heard of the Taurus doing this. Maybe the dealer can put on that pump and see if the noise comes back.

itguy08

Nope - 2 completely different units by 2 completely different manufacturers. The FWD applications (Taurus, MKS, Flex, Explorer) use a smaller Bosch unit. The F150 use a larger unit made by Hitachi. They are separate parts.

FordService

Glad to hear your dealer's working hard on finding a diagnosis. Please let me know how it goes; I'll be happy to jump in to see how I can assist.

Meagan

FordServiceCA

Hey huntnrig,

Has this concern been resolved yet? Please let me know the details, along with the current odometer reading. I'll see how to best assist on my end.

Mariel

FORD FAILS

Please follow me on Twitter [MENTION=178147]fordf[/MENTION]AILURES and on Youtube here: https://www.youtube.com/channel/UCpp...qwnjQ8kxOFTCFw as I document the issues with the timing chain and the failure of Ford to do anything to resolve the issue.

rm -rf

In my case, dealer replaced the HPFP and vacuum pump and the noise went away for a year (12000 miles) before it returned. I did not detect a relationship between air temp or oil changes and the presence of noise (or 'death rattle' as I call it.)

maplelakeduckslayer

Dealers says they replaced the hpfp and it sat overnight and didn't rattle on startup. We will see I will pick it up tuesday