[GreenD]

Meaning you don't think the fan and clutch will fit?

 

[Neil]

We'll have to wait for one of the Dodge Tech guys here to post but I don't think this TSB covers 2000-2003 D's
Steve
DOC Pres

The reason for the TSB was that 98-99's sometimes ran hot, we only have the mechanical engine driven fan. 00+ got the aux electric fan which helped with the cooling when the A/C is on. That's why it's not listed for 00-03.

 

[FSTDANGO3]

Meaning you don't think the fan and clutch will fit?

Meaning it won't be free! It should fit??
As Neil stated, 00-03 got an e-fan as well which was supposed to be the fix.
Steve
DOC Pres

 

[GreenD]

I guess I wasn't expecting free for an 8 year old vehicle!

I just ordered the V-10 fan and clutch and will let you know how it goes.

 

[MWeed]

The other reason for the v-10 was the fan roar on startup. For some reason the fan would drive on startup and you'd hear the roar of the fan at that point, even when the engine was cold. It'd go away, but for some it was a real bother. The fan clutch worked well otherwise.

 

[GreenD]

Yes, had that on my '01. Not a problem on the '03, but higher volume and less noise seem like a worthwhile mod given that I need a new clutch anyway.

I wondered about that roar - bad design - I'm guessing it needed some rotational speed, or maybe centrifugal force, to release when first started. I have no idea what changed on the newer Gen 1's, along with the electric fan they must have modified the clutch as well.

 

[FSTDANGO3]

The 03 most likely has a new design plastic fan blade.
The 01's had an odd looking metal blade.
Need someone with an 03 4.7 to look at their mechanical fan blade and let us know if it's plastic?

Steve
DOC Pres

 

[IndyDurango]

The other reason for the v-10 was the fan roar on startup. For some reason the fan would drive on startup and you'd hear the roar of the fan at that point, even when the engine was cold. It'd go away, but for some it was a real bother. The fan clutch worked well otherwise.

+1. I had that exact symptom. Not a drivability issue, just a roar at startup and cold for the first few minutes. Why it went away afterwards? Dunno. When I pulled it off, the viscus fluid/gel that was supposed to be in there? nada. It was as dry as a very old bone.

The 03 most likely has a new design plastic fan blade. The 01's had an odd looking metal blade.

The 2000 has an all metal fan, but the fins aren't equally spaced apart. Some are closer and a few are father apart. Really an odd look to it.

IndyDurango

 

[Neil]

The 2000 has an all metal fan, but the fins aren't equally spaced apart. Some are closer and a few are father apart. Really an odd look to it.

IndyDurango

That's the way they all are, my 99 stock, V-10 and my Wrangler fan.

 

[MWeed]

That design goes all the way back to the 60's for Dodge.

 

[tomk]

The reason for the odd blade spacing, I'm told, is noise. The varying blade spacing spreads the noise spectrum out making it sound quieter and reducing vibration.

 

[FSTDANGO3]

It doesn't work they're too noisy!

 

[GreenD]

Remember, these are some of the same types of engineers that think putting oil filters on sideways is a really solid idea!

 

[MWeed]

They supposedly did that for clearance issues. Otherwise they stuck straight out from the engine. I always preferred a bypass plate and a remote filter.

 

[DCDAD]

The 03 most likely has a new design plastic fan blade.
The 01's had an odd looking metal blade.
Need someone with an 03 4.7 to look at their mechanical fan blade and let us know if it's plastic?

Steve
DOC Pres

Steve, My 03' 4.7 had the same metal fan blades as my 01 5.9L

Ron

 

[greendurango]

It doesn't work they're too noisy!

VERY! :lol:

 

[Big Al]

FYI, what makes a fan blade noisy is, as it spins, the tips actual go supersonic and the noise is the min-sonic booms coming off them (the same effect is what makes helicopters so noisy.)

If done correctly, varying the pitch and separation between the blades lessens the noise by allowing some of the trailing blades to "slice thru" the sonic boom of the preceding blade before it can fully collapse and cause the "boom" noise.

 

[dizzyD]

I 2nd that theory Al.

 

[monkeyman]

My 03 4.7 has the metal fins too. I also started getting a chirping/rattling sound from somewhere around the serpentine belt area that turns into a squeal when the motor revs. I'm kinda hoping it's related to my fan as well so I'll have an excuse to get rid of it.

 

[greendurango]

I called the local stealer and they said the blade was on backorder? wonder if dodgeparts.com has it in stock?