After my recent experience of having 2 wheels come off (sheared wheel studs) our Outback travel trailer, I decided I needed some type of tire monitoring system. A fellow Tundra owner (thanks RockyMtnRay!) recommended the Doran system. I placed my order and received it last week. I ordered the monitor and 4 sensors since we have a double axle trailer. I followed the instructions closely and the system is very easy to set up. I bought the optional suction cup windshield mounts and found out that I need to bend the metal brackets quite a bit to attach it to the windshield and to tilt the monitor unit out so that it could rest on the dash. Once I was satisfied with the location and angle of the monitor, I attached the mini rubber antenna and the power cord. Then I plugged it in and set it to the program mode, I inflated each tire to the recommended 50 psi. The monitor 'flashed' the position of the tire for the first sensor. Then I took the first sensor and carefully, but quickly screwed it onto the valve stem. Once the sensor was on and sending out a signal, the monitor detected it and then I moved onto the next wheel, repeating the process until all four sensors were on and transmitting.
When the sensor is screwed onto the valve stem the very first time it transmits the tire pressure to the monitor. I had used my trusty analog air pressure gauge (NOT the pencil type) to set the tire pressure at 50 psi per the tire manufacturer. However, when I mounted the first sensor it transmitted a tire pressure of 56 psi. I'm not sure how accurate the sensors are. The other three, showed the pressure between 55 and 56 psi per tire, so at least they are consistent. I have since ordered a digital tire pressure gauge from these folks: Hi-Tec digital tire gauge. My other pressure gauge is rather on the old side and may have lost some of it's accuracy.
This past weekend we traveled about 400 miles while towing the trailer with the monitoring system in place. This time around, I had no problems whatsoever. I did have peace of mind knowing that the tires were monitored and that I would not be caught with a leaking tire or a flat and not knowing about it until it was too late.
Once we were back home, I marked the sensors with fingernail polish identifying their positions relative to the trailer, then unscrewed them and stored them in a plastic zip-lock bag until the next trip. This way I will get them back on in the position that the monitor has recorded for each of them.
So far, so good.
__________________
My daily driver - 2008 Vios 'S' sedan. Tinted windows in the rear, TRD anti-sway bar for the rear, 17" rims - Samurai SC02 Hyper Black. TRD lowering springs. Megan Racing header.
My favorite ride - a 2001 SR5 4x4. With - RCD 6" lift, JBA Titanium coated headers, JBA y-pipe, Unichip PnP, ARB rd-129 air locker (rear), Camburg UCA's, custom front Sway-A-Way coilovers, custom Sway-A-Way's with remote reservoirs and billet mounts for the hind-quarters, PolyPerformance limit straps with adjustable clevis's, Stubbs Welding rock sliders and custom front skid plate, 315/75/16 Toyo Open Country M/T's, on all 4 corners wrapped around 16x8 MB Motoring Blitz rims, cryo'd 4.88's set up by Inchworm Gear, Trenz billet grill upper, T-Rex billet grill lower, on board VI-AIR aircompressor and 3 gallon air tank, AutoMeter A-pillar pod with trans temp gauge (sending unit in the tranny pan), Long Tru-Cool LPD tranny cooler, 10" Flex-a-Lite tranny cooler fan w/thermostat, TRD billet oil filler cap, TRD air filter, TRD dual exhaust, and TRD add-a-leaf rear springs. Superlift TruSpeed Speedo Recalibrator. Warn Trans4mer system with a 9.5ti winch running Amsteel Blue winch line. Budbuilt traction bar. Staun tyre deflators. Spitz Lift portable crane. Marlin Crawler 1.5" wheel spacers. Our home away from home, 2004 Outback 26RS travel trailer with 15" MB Motoring Blitz rims to match the Tundra.
I must agree. I have the same sensors for my trailer and they did as advertised. They alerted me to 2 low tires on the way back home from a roadtrip.
They were easy to install and use.
Herbicidals write-up is dead on the money.
__________________ 2002 TUNDRA AC 2WD = NOT STOCK
MODS: TRD LSD w/4.88's| TRD Headers | Flowmaster 50 Series SUV | TRD Supercharger | Hellwig Rear Sway Bar (custom end links) | TOYOTA Power Antenna | Rear "AIR RIDE" w/ on board compressor | De-badged | Raybrig Headlights & Nokya yellow Foglights | Keyless Upgrade to Full Alarm | Toyota Air Filter | Horn Mod | Map Light Mod | Back Seat Mod | STUBBS Sliders | AXIS Wheels w/315/75-16 Yokohama Geolander MT + | Home Link | SUPERLIFT Tru-speed-speedo Recalibrator | McKesh Mirrors l 3" Body Lift w/Poly Body Mounts l Gap Gaurds l Stainless Brake Lines l Poly Sway Bar Bushings l Poly Rear Leaf Spring Bushings l Clear/Red/Clear Tailights l Black Corners & Headlight Assy's l Diff breather Mod l Nu-Image Blue Flame Gauges l Eclipse AVN5435 w/ Rev Cam & 8 disk changer l Custom rear roll pan w/lights l RCD 6" lift w/ 3" blocks and AAL l Camburg UCA's l High Lift Jack l Daystar Front & Rear Bumpers l 4 Hella Black Magic Lights l Budbuilt Trac Bar l ICOM 706 MKIIG l Doran tire pressure sensors
25 yrs with TOYOTA
MDT/Shop Foreman/FINDLAY TOYOTA
ASE Certified Master Automotive Technician
Official Pro Comp Certified Installer & Dealer
Official ICON Certified Installer & Dealer
Certified Toyota Forklift Operator
Certified Locksmith
Ham Radio Operator = KE7WLF
One thing to remember is just because a tire gauge is digital does not necessarily mean that it is more accurate. Both digital and conventional gauges typically use either springs or diaphragms on the pressure sensor.. just a digital is much easier to read.
In my case, the analog gauge was due for replacement, I just didn't know it until hooking up the tire pressure sensors and seeing a big difference in the indicated pressures.
The new digital gauge reads the same as the tire pressure sensors, so now the readings I get are consistent. I guess the main point is that tire pressure gauges loose accuracy over time and it's a good idea to check against another source.
__________________
My daily driver - 2008 Vios 'S' sedan. Tinted windows in the rear, TRD anti-sway bar for the rear, 17" rims - Samurai SC02 Hyper Black. TRD lowering springs. Megan Racing header.
My favorite ride - a 2001 SR5 4x4. With - RCD 6" lift, JBA Titanium coated headers, JBA y-pipe, Unichip PnP, ARB rd-129 air locker (rear), Camburg UCA's, custom front Sway-A-Way coilovers, custom Sway-A-Way's with remote reservoirs and billet mounts for the hind-quarters, PolyPerformance limit straps with adjustable clevis's, Stubbs Welding rock sliders and custom front skid plate, 315/75/16 Toyo Open Country M/T's, on all 4 corners wrapped around 16x8 MB Motoring Blitz rims, cryo'd 4.88's set up by Inchworm Gear, Trenz billet grill upper, T-Rex billet grill lower, on board VI-AIR aircompressor and 3 gallon air tank, AutoMeter A-pillar pod with trans temp gauge (sending unit in the tranny pan), Long Tru-Cool LPD tranny cooler, 10" Flex-a-Lite tranny cooler fan w/thermostat, TRD billet oil filler cap, TRD air filter, TRD dual exhaust, and TRD add-a-leaf rear springs. Superlift TruSpeed Speedo Recalibrator. Warn Trans4mer system with a 9.5ti winch running Amsteel Blue winch line. Budbuilt traction bar. Staun tyre deflators. Spitz Lift portable crane. Marlin Crawler 1.5" wheel spacers. Our home away from home, 2004 Outback 26RS travel trailer with 15" MB Motoring Blitz rims to match the Tundra.
Doran tire pressure monitoring system.
Re: Doran tire pressure monitoring system.
Linear Mode
