2005 Mustang 4.0 V6 crank pulley failure

75352 Views 39 Replies 21 Participants Last post by amustangrocks, May 25, 2017

amustangrocks

Discussion Starter · Jul 7, 2009

3

i posted this some in the talk section but the v6 guys need to check this out. i noticed at most a month ago the rubber ring from the crank pulley was looking tattered,( 1st pic) but yesterday it came apart.(2nd pic) if you run your car hard at all, better check your pulley. i was lucky and made it home but it would be a real bummer on the side of the road as it could cause some serious and dangerous problems and its not a easy fix. the pulley is so deep in the frt, most pullers dont work good and you need xtra long metric puller bolts for a pulley puller. i had better luck with a large 3 jaw puller. i scrolled through pages on ebay at rpm outlet. they have aftermarket pulleys but i didnt see one for the 4.0. stlwagon has a good link for ford parts if you have time to order and wait.129.00. i picked up a pulley at one dealer, 168.00 but had to go to another dealer to get the new bolt required for install,6.00. i failed to take a pic of the new pulley out of the box but it is pretty different.(3rd pic) the crank sensor gear is way different and the frt of the new one is completely covered with rubber so its gonna be harder to see its going bad. at least the new one 3" puller bolts will work to remove it. you`ll have to pull the cai, radiator top tank, powersteering tank, and the fan assembly out. the mechanic at the dealer said he has seen quite a few come in so it sounds pretty common( or more so with people who run their car harder, which i`m sure no one here does :nogrinner)

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05horse

· #2 · Jul 7, 2009

mines still intact...suprisingly

amustangrocks

Discussion Starter · #3 · Jul 8, 2009

05horse said:
mines still intact...suprisingly

i dont see how it could be :nogrinner it is something to keep a eye on for sure.

GlueFactory

· #4 · Jul 16, 2009

Mine went at...sub 20k miles I think.

stlwagon

· #5 · Jul 16, 2009

Wow that's bad! A new one is $129.13 from Bob Utter Genuine Ford Parts www.bobutterfordparts.com

amustangrocks

Discussion Starter · #6 · Jul 16, 2009

stlwagon said:
Wow that's bad! A new one is $129.13 from Bob Utter Genuine Ford Parts www.bobutterfordparts.com

thats a great price stl, and if i would have been smarter, i would have posted about the pulley when i noticed it looking bad( when i took the pic) instead of waiting till it came apart. i could have had it changed before and saved a few bucks. i guess i was in denial that it was really coming apart on a low milage motor and just how fast it would fail.:embarrassed

old coot

· #7 · Jul 17, 2009

I was not on this site for a while, now I foud out to watch the harmonic balancer, and the thermostat housing. Thanks for the heads up

sum_weirdo

· #8 · Jul 17, 2009

Just went out and checked mine. At 37,000 KM it looks fine, hopefully it stays that way.

It's possible your new one came with a rubber face specifically to protect the ring from drying out and decaying....perhaps the rest of us can follow the example by applying something to protect our good balancers.

amustangrocks

Discussion Starter · #9 · Jul 17, 2009

sum_weirdo said:
Just went out and checked mine. At 37,000 KM it looks fine, hopefully it stays that way.

It's possible your new one came with a rubber face specifically to protect the ring from drying out and decaying....perhaps the rest of us can follow the example by applying something to protect our good balancers.

well, i dont know. its the rubber inside the hub that goes bad. a few other guys have had the exact same problem. the new one does have a rubber coating over the entire face though. so you might be right about that and fords saw the problem and changed it. maybe its just the 05`s. ive run the car hard on occasions, combined with water and rust getting inside it, thats what did it in. i dont know what you could coat it with :scratchchin

old coot, right on. the lower thermo housing is like 53.00 and the top is 13.00. of course the bottom is what cracks :so

Alley's Stang

· #10 · Jul 26, 2009

Dang Crank Pulley

:happyhapp Hello, New here but i got a problem. My wifes mustang's cranshaft pulley is DUNN SON!. Does anyone know how much the stealership will charge to replace this part. I need to like asap , im thinkin of doing this myself. thank whom ever :happyhapp

amustangrocks

Discussion Starter · #11 · Jul 26, 2009

Alley's Stang said:
:happyhapp Hello, New here but i got a problem. My wifes mustang's cranshaft pulley is DUNN SON!. Does anyone know how much the stealership will charge to replace this part. I need to like asap , im thinkin of doing this myself. thank whom ever :happyhapp

i kinda touched on how to do it in the 1st post. the bolt is set back inside so far it was a pain to try to get off. have to come up with some spacers to go behind the puller. no idea what they charge to do it.

Alley's Stang

· #12 · Jul 26, 2009

Question

Thank you for replyin so quickly. can you tell me some more about whats in detail about the operation of removal an install of this part. Do you have to worry about timing it or the indicator? what of the crankshaft seal, did you replace that too? Did you use any special tools other than the puller? I bought a puller today but the bolts that are the proper thread are about 1/2 inch short, im think of going to Lowes and getting longer ones..your thoughts. (Please)
:bigthumbsupI got a feeling that the dealer is going to charge me out the you know wat!!

Alley's Stang

· #13 · Aug 6, 2009

ONE BIG pay in the ASS!:bigthumbsup

amustangrocks

Discussion Starter · #14 · Aug 6, 2009

Alley's Stang said:
ONE BIG pay in the ASS!:bigthumbsup

yep, i tried to tell you,lol....its a simple part ( 1 bolt and line up the keyway) and something that anyone could do, but its a challenge.

Steeltiger

· #15 · Aug 9, 2009

This is not only a Mustang issue, I have a 2004 Sport Trac with the 4.0 and just had mine replaced at the dealership for $500, it seems this is a parts manufacturing issue and needs to be addressed by Ford. If I were a Ford top dog I would make the pulley manufacture pay for all the repairs, this makes Ford look bad to it's customers.

amustangrocks

Discussion Starter · #16 · Aug 9, 2009

Steeltiger said:
This is not only a Mustang issue, I have a 2004 Sport Trac with the 4.0 and just had mine replaced at the dealership for $500, it seems this is a parts manufacturing issue and needs to be addressed by Ford. If I were a Ford top dog I would make the pulley manufacture pay for all the repairs, this makes Ford look bad to it's customers.

welcome to the forums. i agree, this is a bad parts problem, and i just threw my broken one out. maybe i should have kept it but oh well. i`m sure fords is doing alot of them under warenty, which i didnt have so it was just parts for me and a few hours. its not just the mustangs like you said. the one ford mech told me the trucks and some other cars were coming apart too. i had a 88 ford f250 for 14 yrs, 310,000 miles and never had that happen. but good luck trying to get anything out of fords. i`m a ford guy through and through, but it does look bad :so

BenGuzman

· #17 · Nov 16, 2011

Have I gone crazy?
http://guzmanphoto.squarespace.com/storage/mustangweirdness.jpg

Allen41

· #18 · Mar 17, 2012

2

:?:Can someone look at the attached pics and tell me if this pulley is seperated:?: I dont have anything to compare it to other than the pictures on this thread. Thanks for any help. :worship

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stars

· #19 · Mar 17, 2012

Allen41 said:
:?:Can someone look at the attached pics and tell me if this pulley is seperated:?: I dont have anything to compare it to other than the pictures on this thread. Thanks for any help. :worship

Oh wow, that looks nasty. At least it went in instead of out to the radiator. Probably have to replace the crank sensor too. umm, ... in case I wasn't clear, yes it's separated.

amustangrocks

Discussion Starter · #20 · Mar 18, 2012

another one bites the dust

hknow there should have been a recall on the pulleys, they were/are garbage parts. shame on you fomoco, you knew the failure rate :nono:

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