Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
The PCV valve is positive crankcase ventilation valve, it’s part of the emission control system and ventilates the crankcase from blow by. If it’s clogged it will decrease your mpg. I’m not sure what V6 you have but if it’s the 3.6L you can open the hood and look at the far back end of the engine on the passenger side. It’s a PITA to get to on the 3.6 but it’s a metal 5/8 inch nut connected to a hose. Best to look it up on the web to find it. It simply screws out (not a lot of room to work because of location) and the new one screws in. Replace the air filter if it’s dirty. Dirty air filters decrease mpg more than you may assume. On an 11 year old vehicle the throttle body needs to be cleaned. It’s best to remove it from the truck so you can get the back side of the plate. This can be tricky because some throttle bodies need to be “relearned” if you move the throttle plate manually. I’m not familiar with the 3.6 or 3.2 throttle body so you may need a scan tool to reset it or find on YouTube the reset process.Has 59006 miles
Old couple had it, took care of it,garage kept,looks new.they never hauled anything heavy. V6,mpg seems to be dropping.
Two cans sea foam so far .
What's PSV.WHEN TEMP OUTSDE went down to 43° one night,did hear loud sucking air draw on cold start twice two morning
Losing about 5to 8 gals mpg seems like
The first year for the 3.6L V6 in the Ram was 2013, it also will only have an 8HP transmission behind it so the truck will have a shift knob on the dash. Most likely the OP has a 3.7L V6 and a 66RFE transmission with column or console shifter.I’m not sure what V6 you have but if it’s the 3.6L