Touareg :: Missing Tire Pressures - Grey Dash


Dec 15, 2009

The temps drop enough this time of the year to necessitate adding air to the tires. Last week, got a low pressure warning, and pumped up all my tires to the desired PSI. On the road today, and decided to check to make sure they were all even. I noticed the right rear tire on the MFI icon was grey, and where the pressure is was a grey dash. Was driving for some time, and it never came back on. Then, when I exited and restarted, the right rear showed up, but now the left rear was gone. Then, after driving a few miles, all four showed up?? Never noticed this before. Could this be due to a low battery in the TPS, or some other weird gremlin.

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Touareg :: Tire Pressures On All Tires?

Okay, my newly delivered Treg came with Continentals, and are 225/55 R18s. The dealer had them all inflated to 45psi, however, the sticker in the door indicated that the fronts should be at 39psi and the rears at 45psi. Seems odd to me that the same size tire would have two different standard inflation levels, especially given that the car has the Air Suspension which would level out any unbalance in the ride height fron to rear that they may be trying to compensate for. What pressure are folks running front and rear?

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Touareg :: Comfort Section Of Computer Display Tire Pressure Missing

My friend stopped into see me today cause he thinks I'm a VW guru. His LF tire was at 34 psi and the other 3 were at 44psi. Of course his low tire pressure light came on, but he told me he used to be able to see his tire pressure under the comfort portion of his computer display. He scrolled down to show me it wasn't there anymore. Where it went? He now knows why the light keeps coming on cause he has a leak. He should be able to monitor it I presume.

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Touareg :: How Long It Took To Relearn The Pressures

How long it took to relearn the pressures? I pulled the ECU today to take some readings and reburn the chip. When I reset everything the tire pressure monitor went into learn mode. I have driven it around for 20 miles and the unit still has not cleared. My wife is not so sure she likes me doing development work on her Reg. The books are worthless on this subject.

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Buick - LeSabre :: 2005 - Check Tire Pressure Light Is On - All Pressures Equal And Normal

The light has been coming on for the last couple of weeks. I can reset the light by pushing the dash button. On a 700 mile trip last weekend, I probably reset it half a dozen times. The tires are all at 30 PSIg. Two tire gauges agree. I don't know how the system works. I don't think there is a sensor in each wheel like some later cars have. I suspect it works off of ABS sensors and wheel revolutions. The ABS light is not on, nor has it been.

The right rear tire has been replaced with one of the same size, but a different brand. This issue started a month after that. Can that tire have a different revolution length per rotation and cause this issue?

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My tire pressure warning symbol just displayed - steady - so I aired up the tires -winter here -. The Quick Reference guide says /shows a reset switch located to the left of steering wheel . I can't seem to locate this. I have an '11 LTD but without navigation. Did they omit this switch on some models, or do I need a bigger flashlight ?

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Ford Super Duty (1999-2016) :: Low A/C Pressures While Being Over Capacity

In all fairness, this isn't for my SD, but there aren't really any forums for my '94 Villager and all A/C systems work pretty close to the same, so I thought I'd at least throw my question up here and see what comes of it. It's a bit of a hodge podge of manufacturers (Mercury, Nissan, Ford, Mitsubishi), but it's a Mercury, so technically a Ford.....ish.

My A/C crapped out last summer, so I finally got around to rebuilding it earlier this summer. I replaced absolutely everything except the rear expansion valves and the evaporators, which I flushed out with A/C flush and compressed air real good. Then I blew a line on a dirt road because I didn't get a line all the way clipped in. I got a bit paranoid about grit in the line, so I went ahead and replaced the line and dropped in a new dryer, sucked it all out good again, put a splash of POG oil in there, and filled it up with 134a.

According to the specs I could find, the capacity of my system is 52oz, or 4.3 of the standard 12oz cans. I always bleed the lines between cans to rid the lines of air and moisture as much as I can, so 4.5 cans usually gets about 52oz in the system. Anyways, it was 90 outside, so my readings should be 45-55 and 250-270. After adding 4.5 cans, and letting it run for a bit, my readings were still a bit low and my vent temp was only 60, so I went ahead and finished off the can. They were still reading low, so I sorta reluctantly hooked up another can and started filling. It sucked the whole can right up any my readings were 45 over 220 with vent temp at about 57. The low side is about on the low end of the acceptable range, but the high side still isn't quite up to the desired range and I don't want to stick another can in even though my readings indicate I'm not over-filled. I'm wondering if something's not right in there, or if maybe I'm just expecting too much from a 23 year old A/C design...?

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V6, PP2, Xenons, sound

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