marcozzi wrote:
I have the Grand Cherokee 3.0, which uses a chain.
I've been reading the one long post on the software mods for weeks now. The exhaust is straight off the turbo to the end now and I want to do the correct software for EGR, FCV and DPF/cat delete and also add a little extra on the TQ/HP output. I'm getting almost 20 MPG around town, but now that I'm stuck in regen since the DPF's removed, the MPG is down and it's quite smokey behind me from the raw fuel getting dumped in. I also diverted the crankcase breather out of the air inlet and down to a standard road draft setup. I'm terribly impressed by how this thing runs. It has 219,000 on the clock and is still tight, tracks straight and quiet. There's just a slight 1/2 second rattle on startup until oil pressure builds. The only other thing I've done was replace the oil filter cap, as the bypass was broken off and also installed a different head unit with steering wheel control interface. I just picked her up in January after wrecking my XJ when a RF brake line blew out and still have a few things to do. I see there are a few here that really know the CRDs and even have tune files listed to download. This page is awesome compared to many of the other Jeep forums out there!
Always wanted one of those!
You may want to look into a ProVent by Mann; a lot of us with Liberty CRD's have installed them. They should have had them from the factory! Our Jeeps require the suction of the turbo inlet pipe on the CCV system due to the vacuum pump discharges into the inside of the engine crankcase, a weird design. If the CCV is vented straight to atmosphere (we call it elephant hose) with no suction from the turbo, it can possibly cause leaking seals or blow the rear main crankshaft seal...
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Supporting Vendor and Moderator of LOST05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount98 Dodge Cummins 24 Valve