We had 92f outside today. Mine hit 202 in traffic. Thats the first time i have seen my gauge go over 200.
Engine temp during summer
- Thread starter d0nkeyxpunch
- Start date
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Drove about 10 mile up hill over the continental devide today to around 9000'. About 75 degree s outside, no ac, only around 45 mph. 94 with OEM coolant system new (thanks Beno and CDan). 33s, armor, winch, roof rack with kayak on top. Highest I saw was 194.
So happy with results so I am posting every where
My truck with a clogged radiator would get as high as 225 with no AC on with 20k in blue hub.
After installing new Koyo 1918 radiator the highest I saw yesterday was 186.8 and even that was for maybe 10 seconds other wise it was 185 with the occasional 183 and change. THAT WAS WITH AC FULL BLAST!
My truck with a clogged radiator would get as high as 225 with no AC on with 20k in blue hub.
After installing new Koyo 1918 radiator the highest I saw yesterday was 186.8 and even that was for maybe 10 seconds other wise it was 185 with the occasional 183 and change. THAT WAS WITH AC FULL BLAST!
No boiling is 210 at sea level and lower at higher elevations. That's why you shouldn't run straight water. Antifreeze isn't just antifreeze it's antiboil to a point
Hence the reason the cooling system is pressurised. Clean water boils at 212 at sea level, under pressure (15psi) it is IIRC nearer 250?
Add coolant and even higher, but by then you AC has cut out, I never see those engine temps here, my electric engine cooling fan keeps everything under control.
regards
Dave
Yesterday was around 95 and my temperature hit 200F for the first time since i've had the UltraGauge on, after reading this I guess i'm not in such bad shape. What do you guys use for outside temperatures? Do you get it from the OBDII as well?
Outside temp: 105F
Idle with A/C: 206F
Cruising at 65mph with A/C: 196F
(using Toyocom)
I did not check temps without the the A/C--it was 105F outside.
Idle with A/C: 206F
Cruising at 65mph with A/C: 196F
(using Toyocom)
I did not check temps without the the A/C--it was 105F outside.
They have after market gauges. Get the sender as close to the spot where coolant leaves the engine. That way youre reading the hottest the coolant gets. But be warned, when you get 2 degrees above normal you will start to worry. These old girls are like many older people. They have strange personalities and sometimes they do things that surprise you.
Is this true? I thought it was pressure that kept the coolant from boiling? While antifreeze does raise the boiling, it also reduces the heat transfer. So is running straight water asking for overheating issues?
It should not result is worse overheating, because water has greater cooling capacity than glycol at the same flow rates.
The boiling temp of water at 14PSI head is 248psi
I'll add some data here. I was monitoring temps via OBDII and Torque App on my Android head unit.
This weekend at high-way speeds of 60-80 with AC on, The Bean runs at 194-196.6F, ambient temps were in the high 80s. Ran like this for 16 hours this weekend.
Running at low speed ~5MPH climbing Flagpole Knob with transfer case in L, main trans locked in 2nd, RPMs around 1500-2000 without AC I saw 219.4F as a max. It ran stable at 215+/- 1 for several minutes at a time. Basically no air moving over the radiator except the fan.
Any time we paused for more than a minute it would drop to sub 200F.
Dropping off the back side with transfer case in L and main trans in L for engine breaking it ran 186-194. (no load condition)
This weekend at high-way speeds of 60-80 with AC on, The Bean runs at 194-196.6F, ambient temps were in the high 80s. Ran like this for 16 hours this weekend.
Running at low speed ~5MPH climbing Flagpole Knob with transfer case in L, main trans locked in 2nd, RPMs around 1500-2000 without AC I saw 219.4F as a max. It ran stable at 215+/- 1 for several minutes at a time. Basically no air moving over the radiator except the fan.
Any time we paused for more than a minute it would drop to sub 200F.
Dropping off the back side with transfer case in L and main trans in L for engine breaking it ran 186-194. (no load condition)
At 105F ambient and 70mph freeway speeds on the flats with A/C, I see 193-195F coolant temp. Climb a serious hill at speed, maybe downshifted to 4K+ RPM - coolant temps slowly rise to 200-205F, maybe even as high as 210F. Will promptly drop after the hill is crested.
190-195F on highwy 75mph with AC on fully loaded @ 7000 lbs. 200-205F on hill climb with AC on, fully loaded. 210F 4L type rock crawing in summer 95F heat
My trip the last few days from Colorado to Arizona then to Utah. 600 miles, 80-98 degrees ambient temps. I have been towing my 4200lb boat the entire time. Pulled some seriously long hills in CO and from Camp Verde AZ up to Flagstaff and then up to Lake Powell. 2nd gear, 4200rpm for 10-15 minutes at a time, multiple times so far. Truck ran like a champ, pretty slow at times and terrible mileage, but temps were always good. Never saw above 198 degrees on the Scanguage. A/C running the entire time too.