Jeep is going to dealer Wednesday for warranty repair of alternator decoupler. (Telltale red dust is present along with rattle at idle.) Do you suggest serpentine belt and any pulleys or tensioner that should be replaced at the same time?

Thanks as always,

DOC

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2005 KJ CRD Ltd Detroit TrueTrac Bilsteins G2 GDE "HOT" ECU GDE TCM "Tow Tune" "euro" TC SEGR Weeks Elbow New HG at 130K ARPs Clean CAT aFe Filter Magnaflow Exhaust EHM Cumminos In-Tank Lift Pump Hayden Fan Clutch Nylon Fan VH Enabled with GDE lower shutoff point Recalibrated Temp Gauge Tekonsha Prodigy Sears P-1 ZDDP

I changed my first belt at 25k. I've now taken that belt to 105k - Not that I really meant to leave it on so long. Where does the time go?
They seem to hold up. I will have mine replaced next month with the timing belt though.

How many miles on your belt?

Also, wasn't there something about hand turning the pulleys to see if they were messed up? I'm thinking of the viscous heater pulley. I think I read a thread about them not disengaging and taking down fuel economy in the summer months. I would look into that.

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2005 Black KJ Sport CRD,
GDE Full Torque ECO TUNE, GDE Transmission ECO Tune,
Samco British Racing Green Hoses
Build Date 1/05
200k miles.
Original Owner

At least one member had the viscous heater clutch fail likely due to not disengaging see viewtopic.php?f=5&t=60567 . I've not looked at the post recently but last I recall he found a replacement bearing for like $5 + shipping but no clutch "guts" so he was just running with the viscous heater effectively disengaged. Not a big deal, my viscous heater is disengaged by pulling its relat. Viscous heater makes a bit of difference in speed of cabin heat in really cold weather but IMHO not that much and certainly not as much as the block heater.

No particular need to routinely replace the other pulleys although they should be carefully inspected for leaking grease or any excessive bearing slop. FYI tigafila just posted a lower cost alternative for the serp belt idler pulleys at viewtopic.php?f=5&t=64200&p=708688&hilit=bearing#p708688

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs