About 225 to 235 in those pics.
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That is EXACTLY what my gauge shows as well.
Mine hit the 239 mark just as I finally got off the freeway last Tuesday. 113 degrees ambient, AC on, moving at about 75-78 for about 20 minutes. Typically in 100+ conditions like those it would go no higher than shown in the 230 reference pic. Leads me to believe there's buildup in some of the water jackets causing a slight reduction in coolant flow. Fortunately I've never had a full on overheat, but it's still running warmer than I would like in summer temps so I'm looking to correct it before it leads to a more urgent problem.
Post up once you've done that coolant flush, interested to see what your results are. Unfortunately it looks like no shortage of hot weather for us to test things out...Mine hit the 239 mark just as I finally got off the freeway last Tuesday. 113 degrees ambient, AC on, moving at about 75-78 for about 20 minutes. Typically in 100+ conditions like those it would go no higher than shown in the 230 reference pic. Leads me to believe there's buildup in some of the water jackets causing a slight reduction in coolant flow. Fortunately I've never had a full on overheat, but it's still running warmer than I would like in summer temps so I'm looking to correct it before it leads to a more urgent problem.
In my case, since I obsess over ethanol free and 91 octane is the only flavor it's available in here, that's what I use. I have however advanced my timing to take advantage of the higher octane. To do mine I dialed it to the maximum vacuum using a gauge, then back two inHg. Best way to avoid pinging from advancing the vacuum too far. Long hill climbs versus long level stretches make no difference with me, which reinforces my supposition that my case is just an issue of maintenance being due.What octane of fuel are you using in the hot weather? Climbing hills increases engine load. Increased engine load makes a engine more likely to Ping. Pinging will increase engine temps. Hotter intake air temps will also increase the likelihood of pinging. If the truck is running too lean this will also increase temps. A few things could be tried. Try reducing the timing a few degrees, increase the octane, have a decent intake setup. A air fuel gauge is also a good investment.
Yep. Purchased from Toyota directly. I'll pull the plugs soon. Been drinking a lot this weekend and not paying attention to the threadsare you using a FACTORY NipponDenso Rad Cap ?
or
a ROCK AUTO aftermarket type one ?
does it have the 0.9 and the ND logos stamped on it
View attachment 2719490
I do run a shroud. Under the hood mine is as stock as they get. I've changed the vacuum lines and new hoses where necessary. I've not done a proper flush. I picked up some Prestone flushing solution and will be doing that soon. I'm not very optimistic though. The color of my coolant is very green. One detail that may be significant is that my cruiser sat idle for a year with the hoses off while I was getting things together. /shrug. I dunno.None..... it’s like drinking Pepsi vs coke
you can flush your system yourself, a garden hose goes a long ways. Yes they make fancy flushes to sell, but they are also trying to sell their flush products and services.
air bubbles are more important than anything else, nose it sky high and start burping
do you have a fan shroud? Can’t remember
I do run a shroud. Under the hood mine is as stock as they get. I've changed the vacuum lines and new hoses where necessary. I've not done a proper flush. I picked up some Prestone flushing solution and will be doing that soon. I'm not very optimistic though. The color of my coolant is very green. One detail that may be significant is that my cruiser sat idle for a year with the hoses off while I was getting things together. /shrug. I dunno.