Metallic grinding?
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Senior User
Joined: May 2007
Posts: 124
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From: NC
Metallic grinding?
Theres some sort of metallic grinding in the engine compartment, I'm thinking its coming from the alternator. Checked current and its in spec so apparently alternator is good.
any ideas?
its a 93 f150 130k with the 302
any ideas?
its a 93 f150 130k with the 302
Posting Guru
Joined: Jan 2001
Posts: 2,358
Likes: 3
From: Nebraska
Take the belt off and spin everything by hand. You should be able to tell pretty easily. The smog pump will make some noise by hand so don't replace it right away unless you're sure. If everything seems alright try the fan clutch. I had one go bad and I went nuts trying to figure it out until I took the fan off and spun the clutch by hand.
Senior User
Joined: Apr 2005
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I had an A/C compressor do this and a clutch fan... Either way no matter what it turns out to be it ain't got much longer until total failure of the item as previously stated...
I seen a fan fail and take out the radiator...
Brent
I seen a fan fail and take out the radiator...
Brent
Postmaster
Joined: Jul 2006
Posts: 3,978
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From: Central PA
The idler pulley's both can go bad. The one on arm and the stationary one. Both are cheap . Take belt loose and check alt ,pulleys ,and smog pump for play or binding. For me if its Not the alt bearings its the pulley.
Good luck LOST
Good luck LOST
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Senior User
Joined: May 2007
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From: NC
I dont know if this is related to the grinding problem, but going out to the truck to go into town, apparently I lost power somehow while the truck was parked (radio presets disappeared). Also, the trucks been known on occasion to have the battery dummy gauge fluctuate back and forth from L to the R/M in normal when the trucks in park/neutral.
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