Anybody know if it is a separate flash from the F37, or if it's just one big update that includes the pesky F37? I'm gonna guess that with 260ft-lbs at the wheels with an unlocked converter that my wife's Jeep has not had the F37 done yet...

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Stan
Mine - 94 Ram CTD not even remotely stock - 99 V8 RWD Intrepid, Carb'd 5.2 in front of a 42RH with an 8.25 out back.
Hers - 06 Liberty CRD, ORM, EHM, soon to have 3" TURBO back exhaust (yes I like overkill, my truck has two turbos )

Should be separate but I'm not positive. I can tell you that there are ways to tell if F-37 has been done 1) go to the for owners part of the Jeep web site and look for where you can check for outstanding recalls based on VIN down at the lower right corner and check your VIN and 2) if the TCM part of the F-37 was done, not always the case, then as you run up thru the gears, not lead foot thru them, a pre or non flashed TCM will have a final shift point at about 57-58mph vs 62-63 for a flashed TCM.

If you got the vehicle used it's not impossible it has a GDE tune. Check by VIN with Kieth at GDE when they are back from vacation or whatever and look for an rpm flair to 1,000 and then drop back to normal idle when you do an engine start.

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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

Wait, what's this? I just got my Jeep back from the dealer and had all 4 glow plugs replaced. Have they reflashed my computer and torched my GDE tune?

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Chris
Current:
2007 Steel Blue Metallic Grand Cherokee CRD Limited
GDE Eco Tune and DPF delete
CB Engineering DPF delete pipe
EHM

Past (sold to Mountainman):
2005 Patriot Blue Liberty CRD Limited