NORCAL SS
Full Access Member
Trade that thing in and get something else.
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Well.......... I just got word from Ford Engineering, and they say the noise is normal. So Ford bought back my 2018 because of the noise and now say that it is normal for my 2019. What the Hell?
Coworker has a 2016 f150. He said after the Dealership did some brake work , he started getting a grinding noise at 50mph . I told him they probably cracked the plastic vacuum lines to IWE . They get brittle here in AZ . I told him put it in 4HI see if it goes away and it did. He takes it back and they tell him hotline says replace both IWE under warranty dealership did . Still making noise . Takes it back again and they replace the vacuum line assembly and that solves the problem. I Think Dealership plays games to get most money out of warranty and or customer.
have you personally checked the check valve for the IWE?
Definitely a good place to start. A bad check valve will cause this exact issue; partial IWE engagement (grind) after a few seconds at WOT at high RPM. I've replaced them for that EXACT issue.
A point of clarification; this noise and grinding would occur in 2wd but not 4a or 4h, correct? Assuming partial engagements haven’t damaged other parts or created more havoc.
Doesn't sound normal from your description. What is the nature of the current noise? Does it occur on cold start? Or does it happen under heavy acceleration in 2WD but not 4WD? It's possible it could be a few different root causes.
This attached picture is the reply from Ford Engineering. "undesired characteristic of the vehicle. This noise will result in no damage and repairs will not correct the concern." Anyone want to take a ride and hear a GRINDING NOISE THAT FORD SAYS IS NORMAL? How can anyone loyal to Ford be proud of this???? Is anyone thinking of buying and Raptor after reading this? Lets go for a ride! Clarification-noise happens between 50-70 mph before the shift to 4th and 5th
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