I have to replace 2 tires on the rear axle, the front tires are from 2 different brands, size, brand of the replacement tires will be the same as one the front, should the tires in the front be matching? How do I check TPMS malfunction telltale after replacing tires? According to manual I should do this.
IMHO, it’s always safest / best to have 4 matching tires which also means regular rotation and replacing four at a time. If you have AWD, this is imperative.
Not sure what the “telltale” means, but you check up on what the TPMS is saying by checking pressure manually with a trusted pressure gauge. (Unless I’m misunderstanding the question).
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With so many places having buy 3 get one free tire sales why are you not doing that . The tire shop might even recommend new tire monitors if yours are more than 7 years old.
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the tire monitors are over 7 years old and the shop will charge $80/ per tire.
It’s too late to look for the deal you suggested- I hope I remember next time. Thanks
I don’t know either what the “telltale” means, this is wording in the manual- I guess I will check the tire pressure manually with a gauge. The tire mechanic filled the tire to 41 psi instead of by the manual recommended 35 psi. Should I correct it?
I found this post/comment
the tire mechanic fills the tire to a higher than recommended psi because
" it is better for the tire", how should I respond or just deflate to the right pressure
when I get home?
Just change the tire pressure to what is listed on your door plaque .
Matching tires are probably best. GMC, got new tires Dec last year, March sensor went out, tire shop replaced it for free.
“Telltale” = warning light. If the tire pressure warning light is on, this should be diagnosed before replacing the tires. If new tire pressure sensors are needed, these should be replaced while mounting new tires.
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More than one ASE CERTIFIED MECHANIC/tech has said to me, with a straight face, that the pressures on the door frame are “a joke”, and that they always inflate at least 5psi higher. I already dispelled that myth over in my “I rest my case” thread.
That said, I do get the practice of setting a customers’ tire pressures a couple PSI higher than spec, to account for tires being warmed from driving the car to the service venue.
But yes, you may reset your pressures to door frame or owners manual spec tomorrow morning, after the tires have rested a while.
That’s not ideal
I mean ideally they should all match. I’ve never had a situation where I didn’t buy tires as set. Every time, I’ve bought tires for any car or truck I’ve ever owned. All four tires were worn within 1 or 2 32nds of each other and it made zero sense not to replace them all at once.
Yes, but the new tires should also go on the rear. So in your situation, if replacing all the tires isn’t possible (you didn’t mention the wear level, so maybe the front’s are less worn?) then I guess you’d just replace the rears. Perhaps one of the tire experts will chime in with more concrete answer.
Normally, the batteries in the TPMS sensors get replaces as part of the standard mounting/balancing procedure. I’ve haven’t come across a tire shop that didn’t do that as a default service. As for resetting them yourself. Different manufacterers use different systems. Some you need a reset tool, for some there’s a reset procedure you need to do. And some, the ones on newer Fords, you don’t have to do anything, even when you rotate the tires, the TPMS will automatically detect the wheel position being moved and automatically adjust. I’m not sure how it does this. I assume it has something to do with the TPMS sensors comparing the RPM of the wheel/tire vs. what the ABS sensors are reading, and figuring out what tire is in what position based of those numbers.
Check the tires in the morning, after they cool down, and fill them to the pressure on the sticker. I add 2 psi to extend the interval between fills.
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Well, that particular guy may play that way
But I don’t
I contend you are here to pick a fight, make accusations and hurl insults
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A lot of ASEs do. As well as vehicle owners. I just want to point out that it’s incorrect and only a matter of preference.
Look, I apologized yesterday to you for painting you with a broad stroke.
It’s 24 hours later. Let’s move forward.
You’re telling people to move forward
And it’s a new day
With more insults from you
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Please copy and quote examples of “more insults” since my apology, below:
Lucky you that you’ve always had enough money to buy all 4 at once. There were times in my life when I wouldn’t have been able to do that.
As an automotive professional I’ve never seen a TPMS sensor that had a replaceable battery and have never heard of a shop replacing TPMS batteries. And I’ve mounted/balanced my fair share of tires.
Well you know what ASE stands for, right? Ask Someone Else.
You’re trying to be a smart___
Well, we all see right through you
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Eh, not always. My parents just made me park the car until I had enough money. They could’ve lent me the money obviously, but they chose to make an example of my lack of planning/foresight/logistics.
So then they just replace the sensor as complete unit? Everywhere I’ve gotten tires from since TPMS became a thing, always claimed that they “serviced” the sensors. I assumed they replaced the battery. But apparently that’s not the case. What’s done in a TPMS sensor servicing? A gasket or something that connects the sensor to the schrader valve?
