I HAVE A ISB CUMMINS ENGINE AND LOW WATER CAME ON AND NO SIGN OF LEAKS , ADDED WATER AND AFTER 400 MILES (MILK) OIL/WATER CAME OUT OF BLOW BY TUBE.. I HAVE A FEELING ITS A BLOWN HEAD GASKET OR A CRACKED HEAD.... ANY OTHERS GUYS OUT THERE HAVE OR HAD THIS PROBLEM... IF SO HOW MUCH DID IT COST YOU????1999 CUMMINS 275 ISB IN DISCOVERY MOTORHOME THANKS MICHAEL

check oil level and condition ---check and test oil pressure --

there are up to 25+ symptoms
of engine overheat.
flushing only works on toilets.
My guess, is it's leaking coolant somewhere.
There should be no pressure next morning.

Cold water does not build pressure.
but if the vacuum breaker in the cap fails
this can cause vacuum pressure, that sounds like
air pressure. but is not. Reverse
Does engine run ok.
have full power,
no pinging
no water leaks.
if it leaks say where exactly.
locations matter,
1: steam blasting in to side, expansion tank running?
2: steam from tail pipe end.?

here are 27 symptoms or causes.

http://jeepdied.com/overheated/overheated%20101.html



same on all water cooled engine,s this.
the top fail is bad thermostat , they live about 7 years, says the top makers.
the next is leaks,
then bad RAD CAP,
cooling fan dead? and more.
running water only not Antifreeze 50%

great question, a nice symptoms posted.!!!! and car !
The water, (coolant) can only go 3 places.
1: on the ground, (or at passenger toes, look there)
2: into the inside of the engine (see engine oil turn to milk chocolate shake?
3: in the the A/T tranny pan, same thing same milk.
4: out the exhaust, pipe end point, see steam there ALL THE TIME?

this is short term loss.
long term is normal this is evaporation.
here are the tests.

1: no steam ,tail
2: no carbon or oil in rad neck (cold)
3: milk in pans. per above.
4: rad neck tester (green/blue) chem test unit finds exh. gasses in the rad.
5: same place, RAD leak down tester.
6: compression test. all cyl.
7: cylinder leak down tester can even show me here it leaks (ASK, this is advanced testing methods but easy to do)

Battery and Oil Warning Light Comes ON?

http://technoanswers.blogspot.in/2012/06/2003-chrysler-pt-cruiser-battery-and.html

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The oil is getting leaked from its running area. The oil pump has to be pressure tested by pressure test to confirm the leak and area of leak: -----

For step by step troubleshooting check the help links mentioned below: -----

Click the link below: -----

Water in engine oil?

http://schematicsdiagram.blogspot.com/2011/12/water-in-engine-oil.html

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Oil on spark plugs and car misfires?

http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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High Oil Level on Dipstick

http://whatisbyme.blogspot.in/2012/06/high-oil-level-on-dipstick.html

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Oil pouring out from left front of engine?

http://schematicsdiagram.blogspot.com/2012/01/oil-pouring-out-from-left-front-of.html

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Common Causes of Car Oil Leaks?

http://schematicsdiagram.blogspot.com/2011/12/common-causes-of-car-oil-leaks.html

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Troubleshoot Car Oil leak?

http://schematicsdiagram.blogspot.com/2011/12/troubleshoot-car-oil-leak.html

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Kia Sportage leaking oil from oil pan?
http://howtobyme.blogspot.com/2011/11/kia-sportage-leaking-oil-from-oil-pan.html

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Toyota Corolla leaking oil from timing cover?

http://technoanswers.blogspot.in/2012/02/toyota-corolla-leaking-oil-from-timing.html
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Overfilling oil in engine?

http://whatisbyme.blogspot.in/2012/06/overfilling-oil-in-engine.html

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2000 Dodge Ram 3500 Cummins Diesel: Oil Leak issues?

http://schematicsdiagram.blogspot.in/2012/06/2000-dodge-ram-3500-cummins-diesel-oil.html

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How to Replace an Oil Pan Gasket?
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pan-gasket.html
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HOW TO REPLACE AN OIL PUMP
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pump.html
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HOW TO CHANGE ENGINE OIL AND FILTER
http://schematicsdiagram.blogspot.com/2011/07/how-to-change-engine-oil-and-filter.html
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HOW TO REPLACE AN OIL PRESSURE SWITCH (SENSOR)
http://schematicsdiagram.blogspot.com/2011/07/how-to-replace-oil-pressure-switch.html
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How to Check Differential Oil Leaks and Replace Oil
http://schematicsdiagram.blogspot.com/2011/07/how-to-check-differential-oil-leaks-and.html
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HOW TO PERFORM A BASIC ENGINE TUNE UP-OIL CHANGE
http://schematicsdiagram.blogspot.com/2011/08/how-to-perform-basic-engine-tune-up-oil.html

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HOW TO RESET OIL CHANGE INDICATOR?

http://whoisbyme.blogspot.in/2012/07/how-to-reset-oil-change-indicator.html

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These details will help.

Thanks.

if it has a 3.8 liter engine they are known to have head gasket problems or a cracked head , can also be a stuck thermostat .i would first check to make sure there are no coolant leaks from the radiator or water pump,hose ext. is the radiator low.if the radiator is low and you do not find a leak ,it may be head gasket leaking internally.(if coolant is leaking internally the oil in the engine may look like chocolate milk.

yep you did!!!! why did you drive it with no oil presher!
oh well,,,,smack your legs!!!

Loyd

I have 2004 Dodge 3500 w/ 5.9 Cummins , at about 80,000 miles I had excessive oil fumes coming from underneath the hood of the truck . Fumes came from the slobber tube . Took it to the dealership . At first they replaced the fuel rail . Problem got worse . Took it to the dealership again , Oil pan dropped , engine head removed , fuel tank checked , at my cost at first . Results , number one piston top pitted like some took a pick axe to it , parts of piston rings missing , number six piston top clean , but parts of the rings missing as well . This took 17 days for the dealership to find out and to agree to have the engine repaired under warrenty . 14 more days to order and install new engine and turbo . 31 days in total to repair an engine that is defective . Two other engine were in the shop at the same time with the same problem . I now have 100,000 miles on the truck and only 20,000 miles on the new engine with the signs of the oily fumes showing up again . So , rings crack , pieces make their way out of the engine block thru the turbo , back pressure in the crank force the oily fumes out of the slobber tube . That has been one of the problems I have experienced with my Dodge Ram . I am not impressed with my 2004 Dodge , however , my 1995 Dodge Ram was great . Is the new Cummins Engines a true diesel with a replacable cylinder sleeve ?

I hope that this is not your problem , but the fastest way is to check compression in each cylinder and crank case pressure .

James , Shade Tree Mechanic

Check your oil to make sure that there is no water mixed with your oil. Oil will be lighter in color and be frothy if there is water. If you have no water add a large can of Pet Milk to your cooling system water. Do this when the everything is cool to the touch because the milk should be added at the radiator cap. then drive it around for a while to give the therostat time to open and the milk to seal the pin hole. Works with leaky head gaskets and as temp fix for leaking freeze plugs. Hey, they use the same thing to repair steem boilers. Repete if needed. $1.00 fix.

14psi sounds low even for the sump.

Yes a crappy PVC valve can cause some of your problems but not necessarily all of them, they are cheap, I always replace it to start. The air cleaner housing being full of oil is like how the oil is being consumed. In addition to a PVC valve, there may also be a blow-by hose running into the housing. check to see what other hoses go into the housing & which ones have oil coming from them. I'm not familiar with the "Motor Honey" you mentioned but I rarely add additives to my Engine oil, especially if they are thickeners. The only stuff I recommend is a Quaker state or similar "High Mileage Oil". These semi-synthetic oils have additives to swell old rubber & cork seals in older engines and can help reduce oil consumption & leakage. Again, it may not be a total solution, but it couldn't hurt to drain out all of the existing oil & replace with a high mileage type & also change the filter at the same time. Never mix it with other oils, despite the manufacturer telling you it may be safe to do so.