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Strange Moaning sound

 
  #1  
Old 04-19-2015, 10:08 AM
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Strange Moaning sound

I have 95 F20 XLT regular cab w/351W EFI and E4OD tranny.
Truck runs great, lot's of power for a 20 yr. old white brick.
Just recently however I started hearing a low pitched moan coming from the
engine. It doesn't vary with rpm, nor does the sound change, just a steady
moan.
Any ideas as to how to trouble shoot this potential problem?


Thanks


Guy
 
  #2  
Old 04-19-2015, 03:34 PM
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Does it make the noise at idle or under load. If it's at idle I'd try to pin point it. Under load is a bit more difficult.
 
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Old 04-19-2015, 05:09 PM
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Hi Jaagen thanks for your reply.
The sound is the same at idle and under a load.


Guy
 
  #4  
Old 04-19-2015, 05:35 PM
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Weird. My truck had a similar problem, but it was a strange whining sound instead. Seemed to improve when I dropped my teenage daughter off at her friend's house.
 
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Old 04-19-2015, 06:06 PM
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I knew a guy who had that problem a while back. It cleared up when he pried the guy in the Smartcar out of his grille.

Scott
 
  #6  
Old 04-19-2015, 06:34 PM
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Originally Posted by GocartMozart View Post
Weird. My truck had a similar problem, but it was a strange whining sound instead. Seemed to improve when I dropped my teenage daughter off at her friend's house.
Originally Posted by ng19delta View Post
I knew a guy who had that problem a while back. It cleared up when he pried the guy in the Smartcar out of his grille.

Scott

Somehow I knew it would come to this!
 
  #7  
Old 04-19-2015, 06:56 PM
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Yeah, all good entertainment!

Re: the noise. Moaning makes me think of air flow through a valve (air injection into the exhaust?), or possibly a fan clutch issue.
 
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Old 04-19-2015, 07:39 PM
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Thanks for the comic relief.
Yea I had the daughter noise too awhile back... seems she felt it was me and her mother's fault we didn't put her into acting when she was 5 years old. So now at age 24 she was too old
The little "princess" conveniently forgot the 70 grand we went into debt
so she could attend the New York School of Film & Television.
I could've built a couple of really nice trucks with that money.
Perhaps the moaning sound is me


But it just occurred to me to use my handy-dandy code reader.
Perhaps that will tell me something.


More will be revealed.


Guy
 
  #9  
Old 04-19-2015, 10:24 PM
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10, 000 comedians out of work and you'll trying to be one. Lol
 
 
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