Yes, anothe newbie question...

[Inkyturbo]

Yes, another newbie question...

My name is Josh, and I am the proud new owner of a 1996 Ford F350 XLT Reg. Cab PSD with the 5 speed manual transmission. Around 157.5 k miles but maintained in very good condition. I have a question- in fifth on the highway around 60-65 at around 2k rpm the engine sounds like it is running at a really high rpm. But after continuing for a few minutes the roaring sound winds down and it continues at what I think is normal, and it does not return unless I slow down and come back to that speed. Is that normal?

 

[ryanPSD]

Sounds like a nice truck, and welcome! Is it a 4x4? That is my dream truck right there!!

Might be the fan clutch engaged??

 

[oi8228oi]

give us a signature to tell us about your truck and mods. have heard of that happening but i do have a 99.5...
good luck

 

[powerboatr]

My name is Josh, and I am the proud new owner of a 1996 Ford F350 XLT Reg. Cab PSD with the 5 speed manual transmission. Around 157.5 k miles but maintained in very good condition. I have a question- in fifth on the highway around 60-65 at around 2k rpm the engine sounds like it is running at a really high rpm. But after continuing for a few minutes the roaring sound winds down and it continues at what I think is normal, and it does not return unless I slow down and come back to that speed. Is that normal?

stab in the dark with a dull "chicken" knife....
sounds like the fan clutch engaging, how hot was it outside? a/c on or off?

 

[DaveBen]

I would bet that you are hearing the Fan clutch engaging. The diesel motors have a BIG fan to move a lot of air. Watch your temp gauge to see of it drops a little when it comes on.

Dave

 

[Inkyturbo]

That might be it. It seems like it comes on at low engine rpms when you can't really hear it and stays until running at high rpms for a little while. I haven't seen the temp gauge go past maybe one fifth of the normal range, even in yesterday's 100 degree heat.

The truck is a dually, 2WD. I'll get some pictures for you guys later on when I get some time. Thanks for the help!

 

[Tx_Atty]

It's normal. I hear the same thing periodically and it is the fan. You will find a lot of things you can do to your truck here. My list just grows even when I knock one off...

 

[haulin8or]

Welcome aboard the board! Dollars to those round things with holes in them that it is you fan! Careful you don't suck in a little Fiat when it engages.

 

[Inkyturbo]

Thanks for the welcome guys! I'm sure it is the fan now, because this morning when I drove it it did not come on at all until later. Thanks again!

EDIT: Here are some pics!

Notice the rear bumper. Have you guys seen anything like it? Salesman says it was a custom job. Also it has a brake controller. Two of the clearance light lenses are missing, but I already have new ones on order from one of the shops advertised on this site. The windshield will be replaced by the dealer. It's got a few paint chips and dings, but what do you expect?

 

[96EDGEpsd]

sweet truck, nice to have another 96' around here!!