Putting my 05’ 2.8L crd away for the winter. What maintenance should I look into doing this winter? It has almost 200k on it and I just did the timing belt, water pump, thermostat and all that good stuff last winter. Has an egr delete on it already. I’ve heard the samco intercooler hoses and motor mounts should be replaced. What are your thoughts and anything else I should look into?

Keep it somewhere well insulated from rodents. They LOVE wiring insulation and hoses of all sorts.

If you use biodiesel or any B% fuel, drain it. Really bad bacteria likes to sludge things up when it sits.

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'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770

Kind of depends on where you are (Florida vs Alaska); storage conditions (outdoors uncovered vs heated garage); storage for how long; etc.

Not sure why you mention replacing Samco CAC hoses and motor mounts as storage has no impact on either.

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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

This isn’t asking about the storage sorry. Garage in Michigan. I’m asking what things I should look into replacing while it is parked all winter. What maintinence things I should do. Sorry for confusion

In addition to things already mentioned:
Keep your battery charged. If I'm not using mine for an extended time, I remove it and put it on a maintenance trickle charger.
Around here, I also put a de-humidifier in the rig so mold doesn't grow.
Put it up on blocks so the tires don't flat-spot if it's going to be 6 months or so.
Diesel doesn't produce the solvents Gasoline does, so it's not prone to acids forming in the engine oil if stored used.
If you start it and let it run to operating temperature every month or so, it helps gaskets and seals to stay in good condition. If you do this, leaving the battery in the vehicle would be OK.

_________________
'06 Lbrty Sprt CRD 150K

Sasquatch
DSS Turbo
CAT-elimntr
Weeks Stg1&2 EGRfix
PV-200
BLING
vent gauges

IDParts
head
cams
rockers
Timing set
ARP studs
eTn1 GX2123 5v GPs

YETI Custom Tune
Flowmaster 8325508
Carter P76611M
GM 12611872
Hayden 2986
GM 15976889
PATC Custom Billet
2010 Ram Hemi Trans
Sonnax 44957
Transgo kit
Cooper 51770