Join Date: Jun 2014
Own a Commander?: Yes
Model year: 2006
Trim Package: Limited
Power-Train: 5.7L V-8 Hemi
If 4WD - system: QD-II
Current Mileage: 113676
Not sure about the sensors on the 3.7, but I know the ones in the 5.7 are kinda common to fail. And they fail in all sorts of different ways sending all sorts of different signals.
My OEM one failed and sent (2) DTC codes that pointed right at the pressure switch. I replaced with an aftermarket and after about 1k miles I started getting a Low Oil Pressure DTC, but no oil pressure light. I put a new OEM Mopar sensor in and have been fine since. I learned on here that the aftermarket switches are even more common to fail, and you should just always fork out a little bit more $$ and just get the Mopar one.
You might have the original one that has failed, you might have an aftermarket brand from previous owner that has also failed....you might have something totally different because the 3.7s are different than the 5.7s as far as oil stuff goes
I don't know what kind of oil pump system the 3.7 uses....
I would think the 5w20 is also a carry-over from the 5.7 engines requiring it, just so all 3 engines need the same oil type.
2006 Dark Khaki Limited, Hemi, QD-II w/ all the options.
Inertia Performance Heads, Full SRT 6.1 Valve Train, Custom Crower Cam, Double Roller Timing Set, Trend Performance forged Pushrods, High PSI Oil Pump, ARH Long Tube Headers and Mids, Borla Catback, aFe Stage 2 Intake, AEM X-Series WB UEGO & 100psi Oil Guages, PowerStop Drilled & Slotted Rotors, MDS On Light, Kenwood in-dash Nav, HID Projectors and full LED lighting upgrade
Need to get it on a dyno....