Last post on Jun 07, 2013 at 1:09 PM
You are in the Chevrolet Uplander
What is this discussion about?
Chevrolet Uplander, Tires, Van
#26 of 35 Re: Tire Pressure Reading [442dude]
May 08, 2009 (11:58 pm)
This is maybe a dumb question on my part, but if every Uplander owner were to read their manuals or to ask their local Chevy dealer service manager how to reset the TPMS system after rotation, and if the managers also knew what the manual said, we wouldn't have to worry about spending $50 needlessly. And what happens a few years from now after these GM-Schrader-brand TPMS lithium batteries go dead, or if by accident we take our vehicles for a tire change to a shop that unknowingly damages a TPMS sensor? Currently, I'll allow only one particular shop here to work on our wheels because I know their mechanic obtained all the TPMS mfgrs training/certification. I admit that when this sytem works, it can save tires, fuel, wheel bearings, and lives...if nothing else, it tells us the instant a tire pressure isn't correct.
#27 of 35 Re: Tire Pressure Reading [fscoles]
May 09, 2009 (4:37 am)
No dumb questions in your post...my opinions, one at a time.
If every car owner took the time to read the owners manual they would save a lot of money from having things needlessly done to their vehicles that they either didn't need to do or could have done themselves in minutes. A good dealer would show you how to do it while they do it so you know for next time. A good dealer also wouldn't charge you for it since it takes 2 minutes.
When the batteries go dead my understanding is that they can be replaced. Since your tire guy is TPMS certified, he might have a recommendation as to the frequency of the batteries going dead. Maybe its worthwhile to replace the batteries every other time you replace the tires just to be safe? I don't know for sure?
When you go to a tire shop its smart to make a point of telling them that you have the sensors and that they work correctly. You may even have to demonstrate that they work. That way if they damage them during a tire change they are liable to replace them on their dime. And don't leave until you've verified that they are all working, even if you have to perform the "learn" procedure right in the parking lot.
I think you're right, its a good system and its definitely better than the old GM system which calculated that you have a low tire using the wheel speed sensors. GM isn't the 1st manufacturer to equip their vehicles with this system. It can be found on a bunch of vehicles from a bunch of manufacturers.
#28 of 35 Pressure Readout
May 09, 2009 (6:15 am)
My 08 Uplander has the Tire Monitor System readout and has consistantly given me either wrong info or no info. There will not be a pressure reading and it happens on all of the tires, not just one, as at first I thought it might be a bad sensor. Now, when I rotate the tires I cannot get the system to reset at all. Tried 6 times yesterday to recalibrate to no avail.
#29 of 35 Re: Pressure Readout [sparrowpi]
May 11, 2009 (10:12 am)
Ours is also an 08Uplander, and so far its TPMS display hasn't malfunctioned. Since yours is not working correctly and you cannot get it to reset using this procedure, if your odometer is less than 36,000miles (bumper-to-bumper GM warranty) or if you have GM-Certified-Used warranty remaining your dealer can repair it at no charge. Yesterday, I noticed that our Right-Rear (RR) and Left-Rear (LR) tire pressures read backwards on the display (not a big problem, probably they had programmed it that way last October when we purchased it used), so I used the above procedure for the first time and it worked fine. The display readouts agree with my mechanical tire gauges. On the 08 owner's manual page 5-62 there's an apparent mistake: "Activate TPMS sensor by increasing or decreasing ..pressure for 5 secs OR until a horn chirp sounds. The chirp ..may take up to 30 secs to sound." GM can't mean this literally, because it took about 18 secs for my chirp to sound, and the tire would have been flat if I had released air for that long (Duh). I released air for only 5 secs (from 35 psi down to 29psi) and then it took over another 15 secs before the chip sounded. The person who wrote the procedure had probably never done it. When finished, I checked each tire that the display reported the positions correctly. Page 5-61 5. says "..The driver side turn signal lamp comes on." but I didn't see any lamps turn on.
#30 of 35 Re: Pressure Readout [fscoles]
May 11, 2009 (5:48 pm)
You're right - I don't remember the turn signal lamps coming on either - I just went by the horn chirp...mine only took a few seconds after the 5 seconds of letting air out though.
I enjoy it when I find mistakes in the owner's manual because there are plenty of them in there - not just for the Uplander but for all the cars I've ever owned. Some owner's manuals are better than others. Some are just downright bad...I think the manual for my VUE is one of the most incorrect I've ever seen, mistakes all over the place. The best is the procedure to change the cabin air filter. The manual says that you have to disassemble the glove box and take out a bunch of stuff to get to it. In actuality its under the hood underneath a cover that has 5 or 6 easily removed clips holding it in. I'm glad I didn't take the glove box apart before I figured that one out. Go figure......
#31 of 35 Re: Pressure Readout [442dude]
May 12, 2009 (2:11 pm)
As for mistakes in manuals, the '95-96 Windstar Haynes aftermarket manual said to replace the rear bank spark plugs to first lower the engine for access, but simply removing the air filter parts (took only several extra minutes) gave access to the rear bank. I'm hoping to find an equally easy way with our '08 Uplander, because unbolting the top two engine supports and rocking the engine forward (suggested on this and other Uplander forums) sounds dangerous.
#32 of 35 Re: Pressure Readout [fscoles]
May 12, 2009 (4:07 pm)
OH MY GOSH . . Is that right?
I looked at the front three that are SO easy to get at but have never removed that big black plastic cover to check the back ones.
Hard to believe the motor would have to be tipped forward to replace the other three.
#33 of 35 Re: Pressure Readout [fscoles]
May 13, 2009 (5:54 pm)
I haven't done our Uplander but I had to rock the motor forward on our Venture to replace the alternator. It actually sounds worse than it is. Its not a big deal. The key is to have a good ratcheting strap to pull it forward once everything is loosened up. Its kind of cool...the motor really doesn't move all that much (maybe 6 inches) but its just enough to let you get to what you're working on. I never would have gotten the alternator out of the Venture any other way without moving the motor as it was kind of like a puzzle even with the motor rotated forward. You had to drop it and turn it just right to get it squeeze through the small spot you had to work with.
#34 of 35 Changing alternator on Chevy Vdnture
May 27, 2013 (12:11 am)
Although you can changr the alternator on a Chevy Venture by ratcheting the motor forward, that is not necessary. It is easier to take the windshield wiper assembly out,and that way you don't take the chance of damageing the Pass. side motor mout, and by the way, it is quicker doing it this way. I have tried both ways. - Don
#35 of 35 Changing Spark Plugs & Wires
Jun 07, 2013 (1:09 pm)
I just replaced the original equipment spark plugs and wires on our '06 Uplander with 105,300 miles. The engine rolls forward quite easily, but holding it forward is the key to this procedure. I did not have a ratcheting strap available to roll the engine forward & hold it in position. I was, however, able to use a long pry-bar to move the engine forward and held it there with some heavy duty bailing wire. In order to have better access to the rear plugs, I removed the coil pack and mounting plate. Once those were out of the way, I could stand on a short step ladder and lean over the engine and get to the rear plugs. After new AC Delco Iridium plugs and Duralast wire set were in place, everything went back without any glitches, for less than $80.00.