high pitch squeal from under the hood.....turbo?
#1
high pitch squeal from under the hood.....turbo?
ok i have a question........the last 500 km i have been getting a high pitched squeal coming from the engine compartment it happens usually from around 20-30 psi boost and 2000-2200 rpms especially if the engine is not at full temp which usually runs at 188-194......it does make the noise at highway speeds but not as bad at lower speeds......it sorta sounds like a belt squeal or pully bearing squeal but it is not consistant.......the engine has 110,000 km on it.......anyone have any idea what this could be or has had similar problems?
#2
#3
On the 6.0's with a blown head gasket you could get a squeal as the combustion pressure entered the coolant system and exited through the coolant pressure cap; usually under moderate to high boost. I would not consider it high frequency but a lower tone squeal...... similiar to low speed bushing, etc.......
Haven't heard of 6.4's having this problem but if you have also been losing coolant; or a tuner in the equation.......
Bob
Haven't heard of 6.4's having this problem but if you have also been losing coolant; or a tuner in the equation.......
Bob
#5
#6
https://www.ford-trucks.com/forums/8...ml#post7098031
#7
Not that it's cold outside yet (although it was in the 40's in Colorado Springs this morning on the way to the airport) but maybe this is the TSB?
https://www.ford-trucks.com/forums/8...ml#post7098031
https://www.ford-trucks.com/forums/8...ml#post7098031
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