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Discussion Starter · #1 ·
Why does my EVIC show low pressure.

Well when i got in my car, i started to drive about a block and i heard a chime and the warning light came on.
The EVIC showed Right Front Tire Pressure.
I figured, OK no problem, must be from the cold and I will fill it up when I get home.
After I looked at all 4 tires, it showed LF-25, RF-24, LR-25, RR-25.
As I was driving Home, the gauge tire pressure kept going higher to where every tire was even at 27PSI.
When I went to pump gas for my car I figured after I restart my car it should go away but it didnt.
How can I get rid of it?
 

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NautcaSprt6 said:
every tire was even at 27PSI............
How can I get rid of it?

well the sticker on the door jam on mine says 30psi cold... so that's where I'd start. The tire pressure monitor on my brother in law's Crossfire came on when only one tire was 2 psi below recomended pressure.
 

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Discussion Starter · #3 ·
I understand its suppose to be 30psi cold, but its been bet 25-28 PSI for the past month.
Now im puzzled.
I will look at it tomorrow and just fill it up again.

kevenj said:
well the sticker on the door jam on mine says 30psi cold... so that's where I'd start. The tire pressure monitor on my brother in law's Crossfire came on when only one tire was 2 psi below recomended pressure.
 

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kevenj said:
well the sticker on the door jam on mine says 30psi cold... so that's where I'd start...
What kevin said. Also, other SRT8 owners have commented that it does take some time for the tire pressure readings in EVIC to come fully up, as you noted. Just wanted to let you know that that's apparently the norm.

Sounds like you simply need a few more pounds tire pressure. I'd run a minimum of 32 psi, cold, if you're prone to "occasionally" :) take corners enthusiastically.
 

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On my 2006 SRT-8 I run 32psi rear 255 F1's and 34psi front. I set this pressure when the tires are cold. This seems to be the best all around pressure for optimal cornering and braking. I've done a good deal of G-force measurements on my G-tech Pro RR to reach this conclusion.

As the tires warm up the pressures will increase to about 34R/36F for normal driving or even 37R/39F when pushing the tires hard in turns.
 

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The cold

Has the weather changed where you are? Today when I got out of the car I noticed the tires "may" need filling.. I haven't checked the pressure, but I bet the pressure dropped due to the cold (Boyle's law, I believe).. will check tomorrow and fill as necessary :)

jay
 

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The exact same thing happened to my wife yesterday. I'm on the road and can't check it out, but my guess is the colder weather has dropped the air pressure by a few pounds.

Rick
 

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Same thing happened to me the other day in my Grand Cherokee. The tires should have 33 psi. I went out one morning and I got the message. The rt front had 26 and the others had 27. I drove awhile watching the numbers assuming that as they went up due to the driving heat, the light/message would go out. It didn't happen. Turned off the key and restarted. Still had the message. Filled the tires up to 35, and the message dissappeared. Apparently, the only way to extinguish the light/message is to put air in the tires. Pretty useful, if you ask me.
 

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300C_AWD said:
On my 2006 SRT-8 I run 32psi rear 255 F1's and 34psi front. I set this pressure when the tires are cold. This seems to be the best all around pressure for optimal cornering and braking. I've done a good deal of G-force measurements on my G-tech Pro RR to reach this conclusion.

As the tires warm up the pressures will increase to about 34R/36F for normal driving or even 37R/39F when pushing the tires hard in turns.
How's your tire wear at those pressures. It looked to me that carrying 32 lbs in the rear was causing the tire not to strike the ground across the entire tread?? I actually left my front at 32 and lowered the rears to a little less than 31. Interested in hearing your reply.
 

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This happened to me on a quick snap of cold weather right after some hot weather. That is the norm for this time of year on North Central Texas. Anyway with the cold weather my pressure dropped from about 30 or 31 pounds in each tire to 23 or 24. I have found that my low pressure light will come in when my pressure drops below about 26 lbs. It looks for anything more that 4 lbs. or so below 30 and turns on the light. Or at least that has been my experience. I just added some air and everything has been OK even with several more bouts of high and low temps.
 

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I am assuming everyone is using a good, aftermarket tire pressure Gauge to fill their tires and not using the TPM. The TPM is good to monitor, but I wouldn't use it to check pressure as I filled it, or use it to verify the gauge on the gas station tire pump. Just my 2 cents, but a good digital afternarket gauge could save you from tire failure.
 

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Discussion Starter · #12 ·
Just outta curiosity, can the Conits....

Hey,
well i was filling up my tires with air and I noticed that my tire had a nail/screw in it.
I didnt take it out yet because i am leaving for work in a couple minutes.
I have the Contis self seal.
Can I plug the hole, or is it better to just pull the nail out and leave it as is.
 

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I just pulled a 3/4 inch long screw out of mine yesterday and it leaked a wee bit. Still lots of air in it today.
 

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Pull it but then go and drive a few miles. It helps it seal up. If it does leak after that Discount Tire will fix it free. I had a screw in one of my tires and didn't drive it after pulling the screw out and it leaked. DT fixed me up at no charge.
 

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Discussion Starter · #16 ·
Ok, well in conclusion to filling up your tire with air, let me explain.
After i put this post up and read some feedback, i went and filled up the air from about 25 to 28.
I got in my car and it still said low pressure. Meanwhile my tires have been below 30 PSI for a coiple months now.
I drove to see if maybe it would go away nothing.
So i pulled in a gas station and filled it up to 32 and the warninng is gone.
I think that the tire pressure warning goes off when it sees 30 or more PSI.
Just my opinion.
Thasnks guys, youve all been a real help.
Thats what makes me come to this site everyday.
 
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