Moaning sound from engine when starting in morning
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Senior Member
Joined: Jun 1999
Posts: 382
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From: southern california
Moaning sound from engine when starting in morning
Last week, i started up my 1999 F-150 4.2 5 speed in the morning and the engine made a loud moaning sound for about 10 seconds. It only happened the one time. Any ideas what may have caused this? Regards, Bob.
