my 1999 makes a loud knocking noise when in park on 1999 Ford Expedition

my radio goes out when driving and my 4x4 sensor light inside dash flashes and when Im driving and come to a stop it makes a loud fanning noise in engine. also when I turn off engine in the inside dash it makes a clicking noise

by in Appleton, WI on March 19, 2014
1 answer
ANSWER by on March 20, 2014
scan codes but sounds like you have a couple of issues. clicking noise could be air door actuators and fanning noise could be locked up fan clutch. just a good guess but start there
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my engine makes a loud knocking noise when in park and when I shift to drive it stops but when driving my 4x4 sensor light flashes when driving and my radio goes in and out

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