Tire Pressure Question..........
#1
Tire Pressure Question..........
Hi!
I've got a '17 F150 SC with the 2.7 eco motor. It is a daily driver, not used for towing or heavy hauling. The truck is equipped with the Hankook tires, and they have a max pressure stated at 51 psi. The decal on the door frame indicates 43 psi "cold". As I am a certified vehicle nut, the tires are all set at 43 psi cold.
Normally I do my own routine maintenance. But I had a free oil change coming from Ford and took it in this morning. I have to say they did a great job, even running the truck thru the washer. I did notice - among other things - that the tech adjusted the tire pressure. When I drove home, I noticed all four tires were at 36-37 psi.
So my question is, what is the proper pressure? Is the door decal incorrect? Or did the tech just adjust the pressure incorrectly?
Your thoughts please!
I've got a '17 F150 SC with the 2.7 eco motor. It is a daily driver, not used for towing or heavy hauling. The truck is equipped with the Hankook tires, and they have a max pressure stated at 51 psi. The decal on the door frame indicates 43 psi "cold". As I am a certified vehicle nut, the tires are all set at 43 psi cold.
Normally I do my own routine maintenance. But I had a free oil change coming from Ford and took it in this morning. I have to say they did a great job, even running the truck thru the washer. I did notice - among other things - that the tech adjusted the tire pressure. When I drove home, I noticed all four tires were at 36-37 psi.
So my question is, what is the proper pressure? Is the door decal incorrect? Or did the tech just adjust the pressure incorrectly?
Your thoughts please!
#2
Door jamb is recommended pressure. I'd ask why he changed it.
#4
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It is a daily driver, not used for towing or heavy hauling. The truck is equipped with the Hankook tires, and they have a max pressure stated at 51 psi. The decal on the door frame indicates 43 psi "cold". As I am a certified vehicle nut, the tires are all set at 43 psi cold.
BUT it reads 36 psi for the spare. Perhaps the tech saw that and ran with it?
#5
Member
The tpms is set to the door sticker, the tech could have had a bad gauge.
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#6
Ahhh, problem resolved......... the tech saw the "36 psi" for the spare tire and used that for the 4 driving tires. Tires are now back up to 43 psi, and I got another free oil change coupon............
Thanks all for your input. I "knew" the right answer, but was second guessing myself.
Thanks all for your input. I "knew" the right answer, but was second guessing myself.
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#8
Senior Member
iTrader: (1)
I had the opposite problem. I have the Hankooks and 20” wheels and the cold psi on the door jamb is 35 and the techs inflated them to 43-46 when they delivered it.
I guess what I’ve learned from my experience is always check the pressure after someone else works on it lol.
I guess what I’ve learned from my experience is always check the pressure after someone else works on it lol.
Last edited by GreenandGold831; 07-18-2017 at 01:33 AM.
#9
Sounds like different sized tires on the F150 call for different pressures (makes sense). That said, I "assume" that the rule is to use the number on the vehicles door decal - given that the tires have not been changed out for another size............
#10
Senior Member
iTrader: (1)
Yup. Ford puts that pressure on their based on the equipped tires so I would follow it. Mine had an extremely rough ride with 43-46psi but went to feeling like a Cadillac at the suggested 35psi.
Last edited by GreenandGold831; 07-18-2017 at 08:45 PM.