Posts Tagged: grinding noise

Grinding noise F150 Mark LT pickup

September 3, 2009

I have a grinding noise on my F150 Mark LT pickup Ford has issued a service bulletin to address a Grinding noise F150 Mark LT pickup problem on these vehicles. The noise appears to come from under the dash and happens when you switch modes from heat to defrost or vent. The noise is caused by the mode door motor cam plate and the cam. To fix the problem, turn the HVAC control to PANEL mode. Leave the mode door connected to the cam plate and remove the four bolts … Read More