I-6 engine noise
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Joined: Feb 2005
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I-6 engine noise
I have an '87 F-150 with the 4.9L six. Recently I've been experiencing a ticking noise from underhood. Listening further it sounds as if it is a pulley in the location of the ac compressor, belt tensioner, and/or steering pump area. I don't think it's a lifter or anything deep within the engine. Any guesses or common problems that might cause this. It is louder when the engine is warm. Thanks.
Elder User
Joined: Dec 2003
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Here is what I do to isolate these types of noises. Use your own judgement on what you want to do...
Carefully - use a loooong handled screwdriver as a stethoscope. Put the blade on the housing of the compressor, mounting base of pulley, etc, and hold the handle to your ear.
Tips -
Make a circle with your thumb and finger as a cushion between your ear and the handle.
NO jewelry or loose sleeves, etc that can get caught in moving engine parts.
BE extra careful!!
Carefully - use a loooong handled screwdriver as a stethoscope. Put the blade on the housing of the compressor, mounting base of pulley, etc, and hold the handle to your ear.
Tips -
Make a circle with your thumb and finger as a cushion between your ear and the handle.
NO jewelry or loose sleeves, etc that can get caught in moving engine parts.
BE extra careful!!
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coelacanthes
1968-Present E-Series Van/Cutaway/Chassis
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Apr 29, 2013 05:43 PM
