I have a 1997 International with a Cummins M11 engine. Yesterday as I was driving down the highway I noticed that it was getting cold in the cab. As I passed my hand over the heater vent I discovered that it was blowing out cold air. I then checked my gauges and found that the water temperature was almost at 230 degrees. I got it to the shop and the coolant was not low, but found that it had oil in it. Does any one have any suggestions as to what may be wrong?
Engine overheating
Discussion in 'International Forum' started by ivydonw, Feb 19, 2015.
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Head gasket? Is they coolant in your oil?
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Yep, Sounds like a head gasket blown... Be careful or you might end up chucking the motor if you run it too long that way..
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had same thing happen about a month ago on the coldest day too in the single digits. 1 or both thermostats were stuck closed. or sticking. 6 degrees & my temp was going to 210 ?? and no heat? something was not right. but after putting engine fan on while parked took a few min for temp to come down. drove 100 miles back home & the temp fluctuated but never got too high, 170 to 200 all the way back. replacing of thermo's fixed it.
if you lost no coolant, than I would guess it is prob not a head gasket. I could be wrong. when my head gasket blew it blew coolant of of the overflow hose attatched to the coolant tank. -
Could be your injector cups are cracked.
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Thanks everyone, it sounds like this is beyond my capabilities, so it's off to International shop. I hope it isn't the head gasket or worse.
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Better a head gasket than the injector cups. I hope for your sake I'm wrong about this.
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Oil cooler would be my guess.
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i was kind of thinking oil cooler first. do you know if the oil got there while the motor was running or after you shut the motor off?
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This is kinda screwy. When the engine is running, oil pressure is normally 40-50 psi or so and coolant pressure is about 7-10 psi. If the oil cooler leaks, oil will get into the coolant because the oil is higher in pressure. Once you shut off the engine, the oil pressure is zero, but the hot coolant stays at about 10 psi for a while until it cools down. During this time the coolant will leak into the oil.
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