Took a good look at the water pump tonight and the weep holes were clear, so guessing that wasn't it ????
Coolant in oil
- Thread starter duallydmax06
- Start date
I finally got time to work on the truck, I installed a new water pump, hooked up the whole cooling system, put new coolant in and bled it, pressure tested it at 15 psi for awhile and I got nothing coming out of the oil filter housing and nothing out of the oil pan, pressure is holding. I'm gonna keep pressure on it for awhile and see what happens
Mine did the same thing. Would hold untill it ran. Did the water pump bearing have any play at all? Just currious.
No actually the water pump didn't have any play in it, I kinda figured the water pump wouldn't leak under pressure cause it wasn't moving but since I replaced it I ruled that out, and if it was the cooler it should be coming out the oil filter housing, and if was a head or head gasket it should be making its way down to the oil pan under pressure I would think???
Well it sucks when you can't pin point a problem. Are you going to reseal all the cups? Sometimes a crack only shows when it's heated up. Let us know if you find the problem. I would throw it back together and see what happens. But I usually do things the hard way
Pressure tested for 24 hrs now and it hasn't dropped a bit, I'm just gonna put it back together and run it, see what happens if it pushes coolant again then I know it's most likely the heads
Well got some time to put the truck back together after the busy holidays, truck runs great, does not seem to be pushing any coolant at this time but I do have an issue the oil pressure gauge is reading 0 all the time with the check oil pressure message, I checked for actual oil pressure and mechanically oil pressure is fine, the speedometer is also pegged all the way up?????
Found the oil pressure gauge issue, it was a pinched wire behind the power steering pump bracket, got the truck out and running and have no signs of coolant going in the oil yet
I left the cups they were fine, the more I looked at stuff and thought about it I'm pretty sure the problem was moisture from sitting in a gravel floor building for 3 months
Hey I'm looking at a 01 lb7. He said the water pump was leaking so he replaced it. He said it's mixing coolant into the oil. He said he thinks he messed up the seal / gasket. Would this cause coolant in oil? He said the coolant system is not pressurized.the truck is studded.