1988 F250 Custom - Highway Noise
#1
1988 F250 Custom - Highway Noise
In short, when I'm traveling over 55-60 mph the motor sounds very labored. Almost like the motor is sucking in too much air or there's something that doesn't close.
Once in a while it sounds like something closes and the labored noise becomes quiet.
Any suggestions on where to start looking for the problem would be a great help.
Thanks in advance
Once in a while it sounds like something closes and the labored noise becomes quiet.
Any suggestions on where to start looking for the problem would be a great help.
Thanks in advance
#4
#5
it's been years but i did have a vehicle years ago that did something similar to what you are describing. it was the clutch fan engaging (or not disengaging) properly. the clutch was worn out. The squeaking sound you referenced reminded me of it but in my case, it was the clutch trying to grab hold of the fan again at higher road speeds and once it did, the air noise coming from under the hood was tremendous.
changed the clutch, problem resolved.
changed the clutch, problem resolved.
#7
HI tykebe,
the transmission type of the vehicle is not relevant. I think there is a miscommunication.
the clutch is literally on the fan itself unless the stock fan has been replaced with an aftermarket flex fan. the image link below shows an example. Check to see if you have this on your truck.
http://www.2carpros.com/forum/automo...999_tool_6.jpg
If so, this is what I'm referencing in my post. Hope this helps.
the transmission type of the vehicle is not relevant. I think there is a miscommunication.
the clutch is literally on the fan itself unless the stock fan has been replaced with an aftermarket flex fan. the image link below shows an example. Check to see if you have this on your truck.
http://www.2carpros.com/forum/automo...999_tool_6.jpg
If so, this is what I'm referencing in my post. Hope this helps.
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#9
Doesn't matter whether the truck is manual or automatic, you still have a clutch fan, that is attached to the engine cooling fan.
I agree that it sounds like the mechanical clutch fan is hanging up. Pop the hood and spin it. How easy does it spin?
Now grab it and try moving it up and down and side to side. Notice any slop? If you do, change it before it destroys the water pump or before it gets bad enough to wobbling that it turns into shrapnel.
I agree that it sounds like the mechanical clutch fan is hanging up. Pop the hood and spin it. How easy does it spin?
Now grab it and try moving it up and down and side to side. Notice any slop? If you do, change it before it destroys the water pump or before it gets bad enough to wobbling that it turns into shrapnel.
#10
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andrewsmith
1987 - 1996 F150 & Larger F-Series Trucks
5
10-06-2007 07:37 AM