Find someone or a shop with a TPMS scanner. Try to read the sensors directly. I doubt they are working.

The best thing to do with relatively new truck and sensors is to move your known good sensors to the new wheels. There is a lot of junk Chinese faux sensors out there. Must buy from reputable source not eBay or Alibaba. If Amazon then only if “sold by Amazon” not, “fulfilled by Amazon.”

 

Unfortunately, I already sold the previous wheels/tires with the TPMS sensors that were on the truck when I bought it. The new wheels are Ford OEM, pic below, and (supposedly) off of a new F150. I took to mechanic today and they tried both of the TPMS scanners they have and couldn't get the sensors to respond. The are speculating that there are no sensors in the tires, which is possible as I bought them from a guy off of Craigslist. However, the truck didn't throw a fault for 2+ weeks after I installed the new wheels and was reading tire pressure (at least indicated so on the dash).

So, I'm thinking it may be the module. Is there a way to check or reset the module?

 

I asked because I had a similar experience.

I was trading the truck in so I bought a set of OE take offs and the guy had pulled the TPMS out.

for the next week or two, the truck never threw a light or anything…tires read 35 psi…I thought the guy was mistaken and left the sensors in.

well, after a week or two of short trips, I took the truck about 40 min away, as soon as I got about 15 miles from the house on the highway, I got a TPMS light. Showed one tire not reading, about a mile or two more and all 4 weren’t showing.

can’t really explain the why, but I’ve heard of a few people having similar issues, seems the truck likes one decent haul after sensors are messed with to recalibrate.

if the shop can’t pick them up with a tool, they either all magically died or they aren’t in there.

 

The shop can just partially break the wheel/tire down to see if the sensors in there, only takes a few minutes. Seriously doubt anything went bad

 

Thanks WVMoose. What you described is exactly what my experience has been! Based on this, I bet the guy I bought the wheels from took the sensors out. I guess I should have done the same when I sold the old ones. Oh well. The shop ordered new sensors that will be here on Monday and the they'll dismount the tires to confirm/fix.

 

good to hear. Yeah, really weird but I was trading it in so the dealer didn’t mind.

 

I agree, it seems to take a week or two for the TPMS system to finally complain about a missing sensor. Is normal for pressures to increase a few PSI from cold to driving 10 minutes. Am guessing that is the best way to know if your sensors are responding, that you see changing pressures.

Installation of new sensors is something you can do yourself in a pinch. Is not a trivial amount of labor to jack the truck up and remove the wheel. Remove the valve core. Then use another car or truck to drive over your tire at the valve stem to break the bead loose. Then a couple 2x4 blocks to hold the tire away from the rim and valve stem. The sensor is held on with a 3mm hex or similar size torx, best to have an assortment on hand.

A nice big air compressor is virtually a necessity because our tires hold a lot of air. The bead will pop back in easily but soapy water or WD-40 will help.