99 6 Speed Clutch Noise When Lugging - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 3 (permalink) Old 08-15-2012, 12:56 PM Thread Starter
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99 6 Speed Clutch Noise When Lugging

Just picked up a 99 F-250 6 speed last night. Has 122,000 miles with a new clutch/pressure plate/etc. with less than 5,000 miles. I noticed that when you let out on the clutch with the motor at idle, you can hear something like a growling sound. This happens in first or reverse. If you give it a little fuel when letting the clutch out, there is no noise. With the trans in neutral, there is no noise letting the clutch out. Is this typical or any suggestions what to check.

Also, I'm going to be servicing the truck and wondering if it would hurt to switch the trans fluid over to synthetic. I've always ran Royal Purple in other transmssions and wondering if this is recommended.
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post #2 of 3 (permalink) Old 08-15-2012, 01:34 PM
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Re: 99 6 Speed Clutch Noise When Lugging

Very commen when lugging the motor. Nothing is wrong in the trans or your clutch set up. It is just gear roll over noise in the trans when lugging or very low rpm.

Dan
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post #3 of 3 (permalink) Old 08-15-2012, 02:53 PM Thread Starter
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Re: 99 6 Speed Clutch Noise When Lugging

Thanks Dan. Glad to hear this. Any recommendation on synthetic fluid?
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