usually from higher compression, and its caused by the belt slipping a tad everytime you turn it off... not all components stop at same spped under the hood...
When my vp was going bad my truck didn't really squeak when i turned it off. Now that I have the new injection pump in it squeaks like normal. ?? go figure,
i think it has something to do with heat or something like that because it only does it when the truck has been on for more then 10 minutes and if i let my truck cool down after using it for about 3-4minutes it just barley squeeks if at all
It's all of the above, the belt heats up so it's more flexible, the diesel requires a lot of compression to work and when you turn it off there goes all that compression so everything basically comes to a stop, the belt can't keep up so it slips on the pulley's making the chirp. It's normal. :thumbsup:
take a motor built to run all the time in generator form and stick it in a truck with all the accessories we have on the front end. It's a wonder all they do is squeak a little. Its the clutch in the fan slipping while the fan stops spinning.
mine does it to and my boy who is 12 loves the sound and feel of it, he likes me to turn the radio down and he sits back in the seat so he can feel the shack of it, it is cool how much he loves my truck.
I have noticed that whenever my air conditioner is on and the AC clutch is engaged it squeaks. I think it adds more drag on the belt stopping it faster. The fan keeps spinning for a split second and turns the pulley causing it to squeak.
it's funny, mine and a buddy of mine never have the sweak...don't know why, it's not like i'm run'n a gator belt, just the average run of the mill advance special.....course it not sweak'n is fine by me, i have an old gasser chevy dumptruck that the belts sweak at around 4000rpm....it sucks...
ACCESSORY DRIVE BELT CHIRP AT SHUT DOWN
TECHNICAL SERVICE BULLETIN
Reference Number(s): 09-004-06, Date of Issue: March 31, 2006
CHRYSLER: 2003-2006 (DH/D1) Ram Truck (Diesel)
GROUP: Engine
Related Ref Number(s): 09-004-06
ARTICLE BEGINNING
SUBJECT:
Accessory Drive Belt Chirp At Shut Down
OVERVIEW:
This bulletin involves installing an overrunning clutch pulley on the generator.
NOTE: This bulletin applies to vehicles equipped with a Diesel Engine, sale code ETH.
SYMPTOM/CONDITION:
A chirping sound maybe heard coming from the accessory drive belt when the engine is shutdown.
DIAGNOSIS:
If a customer indicates that the condition is present, perform the Repair Procedure.
PARTS REQUIRED:
PARTS DESCRIPTION
Qty. Part No. Description
1 05183490 AA Overrunning Clutch Pulley
SPECIAL TOOLS/EQUIPMENT REQUIRED:
SPECIAL TOOLS DESCRIPTION
8823 Generator Shaft Holder
REPAIR PROCEDURE:
Disconnect and isolate both negative battery cables.
Remove the air cleaner box.
Loosen the accessory drive belt and disengage it from the generator.
Remove the generator.
Remove the drive pulley from the generator.
Install the new drive pulley, p/n 05183490AA, using toll number 8823 to hold the generator shaft. Tighten the nut to 80 Nm (60 ft. lbs.)
Install the generator. Tighten the bolts to 41 Nm (30 ft. lbs.)
Install the accessory drive belt.
Install the air cleaner box.
Connect the negative battery cables.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
TIME ALLOWANCE
Labor Operation No: Description Amount
08-05-01-98 Install Overrunning Clutch Pulley 0.5 Hrs.
FAILURE CODE:
FAILURE CODE
ZZ Service Action
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