TPMS Question - Temperature variation
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Joined: Sep 2008
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From: Edmond Oklahoma
TPMS Question - Temperature variation
I live in an area of the country that experiences rather larger temperature variations in day or two, say a high of 10 degrees one day, and few days later back into the 70's, and this seems to effect the cold reading I get on the DIC, say from 27 to 33, once 34. So, I practically go nuts trying to get it to read 30 from day to day. I suppose this is normal, and that optimally, one is to adjust tire pressure when weather conditions change. I have never owned a car with TPMS before the vette, so be kind!
I searched the archives unsucessfully for a similar question, I was sure it had been posed countless times before.
I searched the archives unsucessfully for a similar question, I was sure it had been posed countless times before.
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Joined: Jan 2005
Posts: 10,924
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From: Daytona Beach FL
I live in an area of the country that experiences rather larger temperature variations in day or two, say a high of 10 degrees one day, and few days later back into the 70's, and this seems to effect the cold reading I get on the DIC, say from 27 to 33, once 34. So, I practically go nuts trying to get it to read 30 from day to day. I suppose this is normal, and that optimally, one is to adjust tire pressure when weather conditions change. I have never owned a car with TPMS before the vette, so be kind!
I searched the archives unsucessfully for a similar question, I was sure it had been posed countless times before.
I searched the archives unsucessfully for a similar question, I was sure it had been posed countless times before.
The common wisdom on the forum is that 10 degrees of temperature change will change the tire pressure by about 1 psi.
I don't get too worried about it - I set the pressure to 30 psi cold when the ambient temperature is the normal daytime temperature of 50 or 60. If the pressure is a couple psi low early in the morning, the tire warms up quickly when driving and gets to a good driving pressure above 30 psi, and later in the day the cold pressures will be back to 30 with the daytime rise in temp.
Make sure you're setting your pressures with a good gauge. The sensors don't start sending frequent updates to the TPMS until you drive faster than 20 mph for a few minutes, so the DIC is not something you can use to set your tire pressures.
Bob
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Joined: Sep 2008
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From: Austin TX
I know what you mean - it's been down to a little below freezing here in Daytona a number of times this year, but the next day it's usually up into the high 50's or 60's. You do have quite large swings in temperature!! With the range of temps you have, you may have to adjust the cold pressures more often than most.
The common wisdom on the forum is that 10 degrees of temperature change will change the tire pressure by about 1 psi.
I don't get too worried about it - I set the pressure to 30 psi cold when the ambient temperature is the normal daytime temperature of 50 or 60. If the pressure is a couple psi low early in the morning, the tire warms up quickly when driving and gets to a good driving pressure above 30 psi, and later in the day the cold pressures will be back to 30 with the daytime rise in temp.
Make sure you're setting your pressures with a good gauge. The sensors don't start sending frequent updates to the TPMS until you drive faster than 20 mph for a few minutes, so the DIC is not something you can use to set your tire pressures.
Bob
The common wisdom on the forum is that 10 degrees of temperature change will change the tire pressure by about 1 psi.
I don't get too worried about it - I set the pressure to 30 psi cold when the ambient temperature is the normal daytime temperature of 50 or 60. If the pressure is a couple psi low early in the morning, the tire warms up quickly when driving and gets to a good driving pressure above 30 psi, and later in the day the cold pressures will be back to 30 with the daytime rise in temp.
Make sure you're setting your pressures with a good gauge. The sensors don't start sending frequent updates to the TPMS until you drive faster than 20 mph for a few minutes, so the DIC is not something you can use to set your tire pressures.
Bob
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Joined: Nov 2007
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From: Tarpon Springs FL
FL Events Coordinator
Team Owner
Joined: Nov 2007
Posts: 45,273
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From: Rochester, NY
Good advice.The common wisdom on the forum is that 10 degrees of temperature change will change the tire pressure by about 1 psi.
I don't get too worried about it - I set the pressure to 30 psi cold when the ambient temperature is the normal daytime temperature of 50 or 60. If the pressure is a couple psi low early in the morning, the tire warms up quickly when driving and gets to a good driving pressure above 30 psi, and later in the day the cold pressures will be back to 30 with the daytime rise in temp.
Make sure you're setting your pressures with a good gauge. The sensors don't start sending frequent updates to the TPMS until you drive faster than 20 mph for a few minutes, so the DIC is not something you can use to set your tire pressures.
Bob
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