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08-28-2021, 07:14 AM
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#1
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,392
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TPMS temps
Finally got around to installing the Guta TPMS system that was last year's Christmas present (procrastination issues). The install manual made little sense to me and I spent an hour with Guta customer support and they walked me though things. First issue encountered is that when I got it installed and turned it on, NOTHING. Called Guta customer support again and found you had to drive some for PSI and temps to show. Guess I had heard this in the past but forgot. Driving to the campground, temps in F rose from right at 80 PSI to 86-87 PSI. Ambient outside temps were between 90-95F. Road surface pretty smooth. What is the normal rise in pressure that can be expected?
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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08-28-2021, 07:37 AM
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#2
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Site Team
Join Date: Oct 2011
Location: Joppa, MD
Posts: 11,714
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Those numbers look right to me. The important thing to look at for is a large differential. I can see a difference in the sunny dide to the shadded side but very small differece betwwen the front or rear tire on a given dide.
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Marshall
2012 Laredo 303 TG
2010 F250 LT Super Cab, long bed, 4X4, 6.4 Turbo Diesel
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08-28-2021, 07:41 AM
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#3
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,841
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Quote:
Originally Posted by wiredgeorge
Finally got around to installing the Guta TPMS system that was last year's Christmas present (procrastination issues). The install manual made little sense to me and I spent an hour with Guta customer support and they walked me though things. First issue encountered is that when I got it installed and turned it on, NOTHING. Called Guta customer support again and found you had to drive some for PSI and temps to show. Guess I had heard this in the past but forgot. Driving to the campground, temps in F rose from right at 80 PSI to 86-87 PSI. Ambient outside temps were between 90-95F. Road surface pretty smooth. What is the normal rise in pressure that can be expected?
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Are you describing pressure or temperature ??? If pressure is what you're posting, that's about the right pressure rise. On the other hand, if the "ambient temperature is 90-95 F, then the tire (if it's sitting on the ground) should be at least the same temperature as the air around it... When towing, I'd expect the "sunny side tires" to be around 10-15 degrees hotter than the "shady side tires". All the tires should be "warmer than the ambient temperature" while towing, not lower than the ambient temperature.
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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08-28-2021, 10:00 AM
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#4
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,392
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Quote:
Originally Posted by JRTJH
Are you describing pressure or temperature ??? If pressure is what you're posting, that's about the right pressure rise. On the other hand, if the "ambient temperature is 90-95 F, then the tire (if it's sitting on the ground) should be at least the same temperature as the air around it... When towing, I'd expect the "sunny side tires" to be around 10-15 degrees hotter than the "shady side tires". All the tires should be "warmer than the ambient temperature" while towing, not lower than the ambient temperature.
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The ambient temp is the outside temp when we were driving. Sorry if that was confusing. All four tires had about the same PSI rise and I didn't pay a lot of attention to the temps to be honest. Will pay more attention on the ride home and may buy four more sensors and program for the truck. The sensors are expensive and I am cheap but thinking about it.
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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08-30-2021, 12:38 PM
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#5
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,392
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Follow up... one of the four sensors took about 30 mlles to show up. Pressures about the same as before but TEMPERATURES were in the low to mid 90F range. Ambient (OUTSIDE) air temp was still in the mid-80s on the way home. In case anyone is in the Kerrville TX area, here is where we stayed:
https://www.oldriverroadrvresort.com...edium=referral
Weather was close to 100F at times and we had some scattered showers and some sun.
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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08-30-2021, 03:45 PM
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#6
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Senior Member
Join Date: Jul 2013
Location: Liberty, Texas
Posts: 5,021
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In about 80F morning ambient temps I jumped from 125psi to 145psi in mid afternoon 90+F ambient.
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2018 Ram 3500 Laramie CC DRW LWB 4X4 Cummins Aisin 3.73
Reese Goosebox 20K
2018 Heartland Landmark 365 Oshkosh
2008 Bigfoot 25C9.4 LB Cabover
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