TPMS - It does nothing. - Page 2 - Fuel Economy, Hypermiling, EcoModding News and Forum

Fat Charlie · 07-15-2014, 11:24 AM

I love tire pressure sensors. I sell parts at a dealership.

What do I love more than tire pressure sensors? Lug nuts with chrome caps.

wdb · 07-15-2014, 01:37 PM

Quote:

Originally Posted by Fat Charlie

What do I love more than tire pressure sensors? Lug nuts with chrome caps.

I just laughed my way through a "lug nuts swollen?!?" thread on another vehicle forum.

I fixed the TPMS sensor issue on my (dear departed) Fit with electrical tape.

PaleMelanesian · 07-15-2014, 02:28 PM

I'm glad to hear the new Fit uses indirect TPMS, with no sensors. It compares wheel rpm and if one is turning slower (or is it faster?) than the rest, then shows the light. It won't help if all four are low, but no added parts to break.

Miller88 · 07-15-2014, 03:32 PM

Because Americans are too busy texting and taking selfies to pay attention to their car, I am forced to have this garbage on my vehicle.

I have TPMS on my 14 year old Jeep. It's called walk around and look to see if there is a flat tire. I also have a $5 tire gauge ...

P-hack · 07-15-2014, 03:36 PM

yes, it takes a couple more sensors though and some logic, i.e. IF steering wheel sensor says straight ahead AND brakes are not applied THEN check the wheel speed sensors.

backpacker3 · 07-15-2014, 03:43 PM

Quote:

Originally Posted by PaleMelanesian

I'm glad to hear the new Fit uses indirect TPMS, with no sensors. It compares wheel rpm and if one is turning slower (or is it faster?) than the rest, then shows the light. It won't help if all four are low, but no added parts to break.

I wonder what that would do if your front tires were newer than the rears or if you had a spare tire.

PaleMelanesian · 07-15-2014, 04:07 PM

I'm almost positive it would light up with a spare. It probably has logic to compare both front wheels to each other, and both rears to each other, or something like that. That would make sense to me.

Of course it would be turning faster. The flattened bottom of the tire makes the effective ground-to-axle radius smaller. The top half doesn't matter, just the bottom.

Edit: in the case of the Corvette mentioned above, its front and rear tires are different sizes. (c6 has 25.7" dia fronts and 26.85" dia rears) There must be some compensation for that in the logic that controls the warning light.

P-hack · 07-15-2014, 06:03 PM

I'm wondering why you would have abs on a corvette myself...

Cobb · 07-15-2014, 06:15 PM

I wished you had my parts, I had to order them from ebay and wait a few days for them in the mail. Ever try to find wheel studs or nutz for a 95 suzuki sidekick?

Quote:

Originally Posted by Fat Charlie

I love tire pressure sensors. I sell parts at a dealership.

What do I love more than tire pressure sensors? Lug nuts with chrome caps.

Frank Lee · 07-15-2014, 06:31 PM

I like the lugnuts with the stainless caps. Yes the underlying nut can corrode, swell up, and mess up the cap and it's fit to the wrench. But on wheels with exposed lugnuts they look so much better than regular lugnuts and actual chrome gets rusty far too quickly.

I bought replacement sheathed lugnuts and my strategy is to soak them in hot thick oil such that the space between the sheath and the lugnut is filled with oil thus preventing the dreaded corrosion. /hijack