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 Anyone have some contacts with DC?
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prwlyn      POA Site Supporter Prowler Junkie Visit Fred's Lord Of The Looks From:Richmond, Texas USA |
posted 12-18-2000 07:57 AM
    
I'm trying to locate anything in print, service bulletin, that has to do with the 99 model belts making a vibrating /rattle noise and a change that was made to correct this problem. Dealer says they can't find anything on this and won't do anything until I can find something. Any help would really be appreciated.. The noise is embarrassing at a light when taking off. Thanks in advance.. ------------------ |
Laddie Roussel              >POA Lifetime Site Supporter Prowler Junkie Personal ScrapBook From:Hester, LA. USA |
posted 12-19-2000 12:26 PM
Fred, here's the response from our friend at DC. "The 'decoupler' pulley for the alternator was put into production starting with 2000 model year. The adjustment for the drive belt is still the same and there is no automatic tensioner." ------------------ |
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prwlyn POA Site Supporter Prowler Junkie Visit Fred's Lord Of The Looks From:Richmond, Texas USA |
posted 12-19-2000 01:07 PM
Laddie, I have been working with a fellow on Senior Staff at DC and we think we have the problem licked... You were just about on the money. They used in '97 and early '99 models a Nippondenso altenator. They change mid '99 to a Mitsubishi altenator and kept it through the 2000 model. It seems the Denso one had a "Oneway clutch pulley" which may be the cause of the vibrating noise at 1250 to 1450 rpm. There is no part number for just the pulley so they have to replace the whole altenator. The LH series uses the same engine and that is where they found this problem... DC is arranging with my dealer to get the altenator changed out. Unfortunately they have to install the same make, ie: the Denso with the same pulley and hope it doesn't go out again. Thank you for your input and info on this, it was a big help when I talked to DC.. ------------------ |
Larry Lord Prowler Junkie Personal ScrapBook From:Colton, CA |
posted 12-23-2000 02:14 AM
After reading several posts concerning the issue of the belt rattle problem when the car is cold. Let me try to clear up the issue. (prwlyn Fred Henkel posts) The LH engineers did not find the cause of the rattle, a Prowler engineer was the one who found the problem. Although the LH cars use the same engine, the problem was not as noticable due to the front engine/transmission configuration(different mass on the engine, engine/trans mounts, etc) and sound insulation. The problem occurs when the belt tension decays, the belt starts to rattle when the engine (and also the belt) are cold and stops when warmed up. The initial fix was to retension the belt or install a new belt. There is no TSB or other paperwork for the 1999's. Note: There are two settings for the belt tension, one for installing a new belt and another to be used for resetting a used belt. Also a special tool is required to set the tension properly. Several permanent fixes were tried and the decoupler (one-way clutch) pulley on the alternator was chosen. The decoupler pulley was put in production at the start of the 2000 model year and uses the same base alternator and mounting as the 1999's. The decoupler pulley is not a servicable part by itself and therefore a new alternator assembly (2000 & 2001) must be ordered to get the decoupler pulley for a 1999 car. I hope this helps to clear up any confusion. ------------------ |
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