Tire Pressure Sensor Defeat
Tire Pressure Sensor Defeat
Hotshot
Joined: Feb 2003
Posts: 11,537
Likes: 27
From: Long Beach, Ms.
Take a pvc tube of a large enough size to hold the set of sensors and cap it on one end. use pvc glue and a couple of screws tothe secure the cap in place. now take another cap and drill a hole to hold a replacement valve stem. Example here; Short-Short Metal Tire Valve, Tires & Supplies - GEMPLER'S
Put the sensors in the tube, glue and screw the cap with the stem in place onto the tube. Now pressurize the tube with a small compressor. BE VERY CAREFUL! DO NOT USE A REGULAR COMPRESSOR AS THE TUBE COULD EXPLODE IF OVER PRESSURED! I would use a 12 volt air pump that can fill the tube to about 50 lbs pressure. Now the sensors think that they are inside an air filled tire and report to the truck that all is well. Put the tube under a seat or even store it somewhere under the hood.
Put the sensors in the tube, glue and screw the cap with the stem in place onto the tube. Now pressurize the tube with a small compressor. BE VERY CAREFUL! DO NOT USE A REGULAR COMPRESSOR AS THE TUBE COULD EXPLODE IF OVER PRESSURED! I would use a 12 volt air pump that can fill the tube to about 50 lbs pressure. Now the sensors think that they are inside an air filled tire and report to the truck that all is well. Put the tube under a seat or even store it somewhere under the hood.
Cargo Master
Joined: Aug 2005
Posts: 2,051
Likes: 1
From: Alberta, Canada
How about if you just took all the sensors and put them inside the spare tire? The added bonus is you never have to check the spare to see if it is full of air as the alarm will go off if it gets low.
Hotshot
Joined: Feb 2003
Posts: 11,537
Likes: 27
From: Long Beach, Ms.
Here is great info on the Ford TPMS; Ford TPMS - Ford TPMS Tools & Tire Pressure Monitoring Systems
Cargo Master
Joined: Aug 2005
Posts: 2,051
Likes: 1
From: Alberta, Canada
For some reason my last post won't show up. Anyway I guess the idea won't work as they are programed to sense the centrifugal motion and will trip the light if they don't sense a speed greater than 20 mph.
Hotshot
Joined: Feb 2003
Posts: 11,537
Likes: 27
From: Long Beach, Ms.
HoP I have not seen the tube trick personally. So I have to class it as theory. I have thought that the movement to reset part could be accomplished by tying a string to the tube and spinning it around for a couple of minutes.
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Postmaster
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Hotshot
Joined: Feb 2003
Posts: 11,537
Likes: 27
From: Long Beach, Ms.
No you wouldn't. Although the thought is pretty funny. I would think that once the sensors reset they would stay set until the sensed a drop in pressure. Just what do you do at stoplights Stroker?
Postmaster
Joined: Aug 2006
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What do i do at stoplights... Stink up the intersection...
Posting Guru
Joined: Jun 2004
Posts: 2,433
Likes: 1
From: Apex, N.C.
Just courious, but couldn't this system be turned off in the PCM? I figured if I spend the money for custom wheels and tires, whats a few more dollars to stop by a dealer and have them to cut it off.
Hotshot
Joined: Feb 2003
Posts: 11,537
Likes: 27
From: Long Beach, Ms.
The system will not be turned off by any dealer as it is a federally mandated system; Tire Pressure Monitoring Final Rule
Just for thought; The agency (National Highway Traffic Safety Administration) estimates that if all light vehicles meet the four-tire, 25 percent compliance option, the net cost [vehicle cost + maintenance costs -- (fuel savings + tread life savings)] will be $53.87 [$48.19 + $27.20 -- ($16.43 + $5.09)]. As noted above, the agency estimates the total annual cost will be about $771 million. The agency estimates the total annual net cost will be about $862 million [$771 million + $435 million -- ($263 million + $81 million)]. NHTSA estimates that the net cost per equivalent life saved will be about $4.3 million.
Just for thought; The agency (National Highway Traffic Safety Administration) estimates that if all light vehicles meet the four-tire, 25 percent compliance option, the net cost [vehicle cost + maintenance costs -- (fuel savings + tread life savings)] will be $53.87 [$48.19 + $27.20 -- ($16.43 + $5.09)]. As noted above, the agency estimates the total annual cost will be about $771 million. The agency estimates the total annual net cost will be about $862 million [$771 million + $435 million -- ($263 million + $81 million)]. NHTSA estimates that the net cost per equivalent life saved will be about $4.3 million.