[NCohioChally]

First... I looked around didn't find this exact issue on the forum or with a Google search (which seems odd because I'm sure not the first person to do this)

I replaced my 17" wheels with the Dodge 18" option as well as new tires. After driving about 15 or so miles the Low tire pressure dummy light came on and now, every time I start the car I get it (basicly is chimes once, the light blinks for a minute or so and then just stays on)

Unless I am mistaken on how it works, I don't believe I have TPMS as my car is really basic & doesn't have an EVIC to give me individual pressure readings ... all I can figure is that it has to do with the slightly larger wheel size... is there something additional I need to do? anyone had this issue?

I see lots of similar posts with varying soultions, but none seem to relate to wheel size.

Anyone have any thoughts?

R

 

[tdjacw]

My guess is one of the sensors is bad. Did you use the same ones over?
Really shouldn't be a problem going from the 17" to the 18".

 

[jkelly16]

The EVIC is not required for this feature. I don't have it on my R/T but I still have the TPMS function. So check your tire pressures and make sure they are at least 32 (or what your door sticker says). They need to be up to pressure before driving and it may take several miles to reset the light.

Or it could be your new rims don't have the sensors or have the wrong sensors.

 

[NCohioChally]

OK thanks for the response guys ... based on what you say I don't have the sensors in them at all... I bought the tires & Rims off Ebay and the stems & caps are chrome so I'm guessing they don't have the sensors in them at all... I sort of assumed (incorrectly) that since I didn't have the EVIC that the stems didn't matter... I can pick up a set on Ebay for 30 or $40 and have them installed... Could also see if it's too late to get the stems off my old set back... but for $40 maybe just better getting new ones.

Thanks again.

R

 

[tdjacw]

Yeah, when I changed the wheels on my wife's Tahoe. I went from 17" to 20" and reused the sensors, no issues. See if you can remove the ones from your old wheels.

 

[NCohioChally]

I checked with the guys that swapped the wheels for me and they already shipped the old ones off, so I'll be buying new ones (which isn't so bad)

I think I read - although I can't find it now - that the 2010 & up use the all black plastic construction valve stem and the 2009 & lower used the aluminum. Does anyone know if thats right? I have found the 433 Mhz ones on Ebay.

Russ

 

[WarDuk09Rt]

There can be compatibility issues that extend beyond just the 433Mhz. Best advice, check with a parts source so you are positive the sensor is compatible before you purchase. You can get either aluminum or rubber stemmed sensors. I recommend rubber stems. Aluminum stems often get corroded and snap off.

Good luck!

 

[NCohioChally]

Yeah... I paid a little more & found a set of 4 Mopar ones and my car is on the compatibility chart for the set ... the knock-off stuff always makes me nervous...
and I did get the rubber... I had done some checking around and found the same info you mention about the Aluminum ... I drive mine all year so I don't need the corrosion hassle ...

Thanks.

R

 

[jackal]

That tire shop kind of screwed you on this. They should have known 100% that if the old rims had them then the new rims need them. Hope they install the new set for free.

 

[Scat Pack]

^^^ I agree with jackal. Unless there was a fit issue in going to a larger wheel, the original sensors should have been compatible with the new 18" wheels.

I will say that that the 18" wheels are an improvement to the appearance of your car. IMO, the original 17" wheels looked too small.

BTW, what width 18" tires did you go with? The factory original 18" tire width on an SE was 225 but I have seen owners install tires as wide as 255.