Hi folks -- I made an "interesting" discovery today on my brand new 2015 Ford F-450 pickup when I tried to install TPMS sensors.I have the TM-507RV/SE unit from Truck System Technologies. When I put the sensors on the front tires, the low pressure alarm went off as soon as the sensors synched up with the display unit.My brand new front tires which are labeled for 110psi were only inflated to 85 psi on one side, and 84 psi on the other.Also, the rear valve stems were pointed into the space between the dual rear wheels where I think it would take a hobbit to reach them to air them up.Needless to say I will be making a call on the dealership ASAP, but I wanted to check in with the folks here on the tire inflation -- I'm sure the dealership will try to tell me some BS about underinflating the tires for the ride or something, so I was hoping to get some wisdom from the folks here before I go in to discuss this with them.Any thoughts?Thanks & Best Regards,Mitch

mitchmitchell1616 wrote:Hi folks -- I made an "interesting" discovery today on my brand new 2015 Ford F-450 pickup when I tried to install TPMS sensors.I have the TM-507RV/SE unit from Truck System Technologies. When I put the sensors on the front tires, the low pressure alarm went off as soon as the sensors synched up with the display unit.My brand new front tires which are labeled for 110psi were only inflated to 85 psi on one side, and 84 psi on the other.Also, the rear valve stems were pointed into the space between the dual rear wheels where I think it would take a hobbit to reach them to air them up.Needless to say I will be making a call on the dealership ASAP, but I wanted to check in with the folks here on the tire inflation -- I'm sure the dealership will try to tell me some BS about underinflating the tires for the ride or something, so I was hoping to get some wisdom from the folks here before I go in to discuss this with them.Any thoughts?Thanks & Best Regards,Mitchthere is a chart you can get that shows tires rating at different pressures.I always aired down my tires when not towing or carrying load.They are rated at certain capacity at MAXIMUM 110 psi.Not necessary to keep them there when emptyOf course I had no TPMS to deal with..:h:h

Check the sticker on the door post for proper inflation. 85 psi could be correct. I know on my truck the tires are rated for a max of 80 psi but the sticker calls for 60 psi on the front tires and 80 on the rear for max capacity. :)

Check the door sticker and consult your owners manual. Calibrate the tire sensors to match pressures recommended on the door sticker and owners manual. You should be set to go.

Have you reprogrammed your TST monitor for the pressures stated on the door plaque, not the max side wall rating. On ours, the fronts (tires rated for 80psi) door jamb and weight load requires only 65 psi. My TST monitor is set for 65 psi front axles. It will alarm at -10% or about 59 psi. low or +20%, about 78psi for a high.As for the rear duals, you will need metal valve extenders, various shapes and length to get to the outside of the rim. I'm sure others will chime in as to the various options. Without the extensions and with the screw on TST sensors, you can check and ad air with a dual head air guage/filler.Ken

I think your getting good recommendations here Mitch. The tire pressure should be set to the pressure listed inside the door sill. Also there are long/reverse air knozzle that can be used to access the valve stem.I must say I'm impressed with the factory TPMS and back in Sept. when driving home from a fishing trip my center display flashed a low tire pressure warning. So I pull over at my earliest opportunity and sure enough there's a screw in my front passenger tire and the air is literly blowing out.

Installing TPMS sensors on my brand new F-450 truck

28 Replies

Chiefcpo
Explorer
Nov 08, 2014
DRW are not required to have tpms on the truck.On some it is not an option yet.
BB_TX
Nomad
Nov 08, 2014
My F350 sticker on the door column says 80 in the rear and 65 in the front. Your pressures are probably correct.
downtheroad
Explorer
Nov 08, 2014
What is hard for me to understand is a brand new 2015 Super heavy duty, Super Duty, super expensive F450 and it didn't come factory equipped with sensors?
Good grief,
My wife's grocery getter Subaru came with them and it's a 2 year old model.
FishOnOne
Nomad
Nov 08, 2014
I think your getting good recommendations here Mitch. The tire pressure should be set to the pressure listed inside the door sill. Also there are long/reverse air knozzle that can be used to access the valve stem.

I must say I'm impressed with the factory TPMS and back in Sept. when driving home from a fishing trip my center display flashed a low tire pressure warning. So I pull over at my earliest opportunity and sure enough there's a screw in my front passenger tire and the air is literly blowing out.
Beverley_Ken
Explorer
Nov 08, 2014
Have you reprogrammed your TST monitor for the pressures stated on the door plaque, not the max side wall rating.
On ours, the fronts (tires rated for 80psi) door jamb and weight load requires only 65 psi. My TST monitor is set for 65 psi front axles. It will alarm at -10% or about 59 psi. low or +20%, about 78psi for a high.

As for the rear duals, you will need metal valve extenders, various shapes and length to get to the outside of the rim. I'm sure others will chime in as to the various options. Without the extensions and with the screw on TST sensors, you can check and ad air with a dual head air guage/filler.

Ken
Rollnhome
Explorer
Nov 08, 2014
Check the door sticker and consult your owners manual. Calibrate the tire sensors to match pressures recommended on the door sticker and owners manual. You should be set to go.
tvman44
Explorer
Nov 08, 2014
Check the sticker on the door post for proper inflation. 85 psi could be correct. I know on my truck the tires are rated for a max of 80 psi but the sticker calls for 60 psi on the front tires and 80 on the rear for max capacity. :)
v10superduty
Explorer
Nov 08, 2014
mitchmitchell1616 wrote:
Hi folks -- I made an "interesting" discovery today on my brand new 2015 Ford F-450 pickup when I tried to install TPMS sensors.

I have the TM-507RV/SE unit from Truck System Technologies. When I put the sensors on the front tires, the low pressure alarm went off as soon as the sensors synched up with the display unit.

My brand new front tires which are labeled for 110psi were only inflated to 85 psi on one side, and 84 psi on the other.

Also, the rear valve stems were pointed into the space between the dual rear wheels where I think it would take a hobbit to reach them to air them up.

Needless to say I will be making a call on the dealership ASAP, but I wanted to check in with the folks here on the tire inflation -- I'm sure the dealership will try to tell me some BS about underinflating the tires for the ride or something, so I was hoping to get some wisdom from the folks here before I go in to discuss this with them.

Any thoughts?

Thanks & Best Regards,

Mitch

there is a chart you can get that shows tires rating at different pressures.
I always aired down my tires when not towing or carrying load.
They are rated at certain capacity at MAXIMUM 110 psi.
Not necessary to keep them there when empty

Of course I had no TPMS to deal with..:h:h

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Installing TPMS sensors on my brand new F-450 truck

28 Replies

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