WK- Troubleshooting/Problems 2014 Jeep Grand Cherokee 5.7 Hemi, Overland, 4 x 4 major issues after oil pan replacement. Owner: 2014 Jeep GC 5.7 Hemi, Overland Re: Wk/Wh 2005~ Grand Cherokee Common Faults And Issues. Marlin said: Updated with; 5.7. - 05-07 models have delay issues with electronic throttle. Dealer rplaced MAP sensor on inlet manifold and installed updated throttle pedal (requires wiring modifications as it's a new design). Can report it is much better now. 2005 Jeep Grand Cherokee Limited 5.7L Hemi -- Black Ops CF Venom Hood and Headlight Covers, Mopar CAI, DS Predator Tuner, Catch Can, SRT8 Grill, SRT8 Front Bumper, SRT8 20" Rims, SRT8 Bilsteins Shocks, SRT8 Bwoodys springs, SRT8 Front and Rear Swaybars, SRT8 Roof Rack, SRT8 Pedals, 08 RER Mygig, Lockpick Adaptor, 6k HID LowBeams, LED Highbeams/Fog, LED Interior more to come The biggest drawback on the Jeep Hemi's is the crappy exhaust log manifolds, along with a heavy, restrictive cat. back. See pix below of the collectors off a 5.7 Jeep logs (left), a 5.7 Dodge/Chrysler logs (center) and my first set of custom headers on the right. Also, when you remove the MDS, you'll get DTC's and MIL's indicating it is not 2012 5.7 Oil Leak. Recently bought a 2012 Grand Cherokee Laredo with the 5.7 hemi. It appears to drip oil toward the back of the engine, seems a bit to the passenger side, at least that’s where the oil ends up on the ground. I’m planning to get under there this evening and take a look but wanted to ask if there is any known suspect area’s Haven't had to replace the one on either the '98 Grand with the 4.0 or the '07 with the 5.7. On the 5.7 when I hook up the Autel to it, I usually get 20 psi hot oil pressure readings. On the 4.0 once in a blue moon it will read a little low and just disconnecting the electrical connector & reconnecting it seems to correct that, so it could be a 06 GCO, Dk Khaki, QDII, Flshing Hi 3rd Bk Lt, MDS "ON" Lt, Airtab Vortex Gens, Debadged, Fumoto Drain Valve, BT Catch Can, Chopped EGR Tube, SRT8 CAI, AFE Air Filter, 6spd 545RFE, Sonnax Trans Line Press Booster, SC Tuner W/Adv Trans Tune App, DS and HP tuners, Transgo Shift Kit, ARH Long Tube Hdrs w/3 in Magnaflow/Xlerator AP Exh Sys, Bilsteins, SRT Springs/Sways, Cust Eng Cvr, SRT8 frt/rear B. Big Daddy 1 · #9 · Mar 12, 2023. My 5.7 l Hemi is in a 2006 Jeep Grand Cherokee limited. It started running in limp mode a few days ago and I took it to the local auto parts store.They ran a scan on it. The scan showed it has a bad MDS solenoid and it has a miss in one of the cylinders. My 2017 Jeep Grand Cherokee needs to have the head gasket replaced and water pump. It is under 60,000 miles (59,400) but 5 1/2 years old. Jeep is not honoring the warrantee since it is over 5 years old. This is a very expensive repair. Any thoughts or advice? Is this common problem with Jeeps? Should I get rid of car? I’m wondering if more problems will appear. I purchased a 2005 Grand Cherokee 5.7 that "needed a head gasket" for very cheap. Upon further inspection it dropped two valve seats. One on cylinder 1, one on cylinder 8. At this point I should have decided to put in another engine.. unfortunately I didn't. Cylinder 1s seat got stuck and did not touch or damage the piston. AcrZM97.