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EOT sensor
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[QUOTE="PSM_Kid, post: 122432, member: 3059"] I guess I will clear it up from a personal experience I've had within the last few months with a truck that was a total problem child for us. Truck came in for studs, egr block, oil cooler, hoses, reservoir and we flushed the coolant several times due to it being rusted pretty bad and replaced a leaking/cracked radiator 114k miles. Cooling system is holding. Hell it should be, damn near everything is new and flushed. Guy picks up truck and calls 2,000 miles down the road saying that coolant temp never gets above 200 while oil temp will reach 230-240. He finally gets around to bringing it in at 130k and we warranty the oil cooler even tho it was past the 12k warranty. We honored it because he made us aware of a problem 2,000 miles after the repair. I pulled the oil cooler and it was completely clogged with crap and rust. Even the cooling passage from the front cover, to block and up into the oil cooler was completely clogged. I pulled the water pump and completely cleared the passage. Re assembled and flushed it several times. We put over 100 miles on the truck monitoring eot/ect with IDS before letting it go. Same truck comes back at 132k miles on a flat bad with chocolate pudding in the coolant reservoir and we have to warranty the cooler again and the radiator as well as hoses. It's been gone now for awihle and the guy has called in saying all is well and it isn't getting hot and the coolant is looking great. The cooling system was neglected on this vehicle to begin with. Allowing it to push coolant for a long time and not maintaining the coolant with flushes allowed it to get this way. Yes I understand the casting sand/cleaning issues with the 6.0 blocks, but proper maintanence and care would have gone a long way. So basically what I meant OP is that even if an oil cooler is fresh, doesn't mean that it is going to stay that way. If it's clogged, don't let it go too long and pop. Oasis showed that my truck had an oil cooler put in it under warranty at 108k. I bought it with 139k and there was still oil/sludge stuck to the inside of the reservior. It looked like crap. Even after doing an egr block, flush, replacing the reservior and filling it with Cat ELC it has little black particle crap that has found it's way to the top of the reservior above the coolant line 3k miles later. I have had to drain the coolant since then a couple times when I upgraded the fpr spring/banjo bolts then again when I put the powermax on. Each time the coolant looks awesome but I know that all the crap that was in the system still isn't out. I will be looking into a coolant filtration set up soon and will probably put another reservoir on it if I feel picky enough. Therefore, if the cooler is clogged don't let it pop. It will wreak havoc on your cooling system. [/QUOTE]
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