i have tried everything

[dmdillinger]

i have a 99 7.3 that has an overheating problem. the problem is it only overheats when i'm pulling a load (even a small load). I have a superchip program in it and have replaced hoses, thermostat, waterpump and radiator. If anyone has had a similiar problem please let me know, I'm hoping its not a head gasket.

[cchase]

wow, this is a good one. Is fuel or oil fixing in with coolant? head gasket failure is pretty rare on a basically stock 7.3, but anything can happen...

[dmdillinger]

thats the crazy thing no fluids are mixing from one to the other, the only thing that does happen is when i first crank it in the morning it leaks oil and when it warms up it stops.

[cchase]

I wonder if your oil cooler is bad?

[OregonStroker]

Originally Posted by cchase

I wonder if your oil cooler is bad?

ya my dads oil cooler on his stock 95 psd pooped on him causing crazy temp flux. usually the check valve in the oil filter flange (take filter off and you will see either a hole, or a hole with a check valve to the driver side of the flange) will fall out if it fails. but it would cause over heating if its not cycling the oil properly. feel your oil filter after it idles for a few min. if its getting really hot to the touch thats what your problem is.

[dmdillinger]

hmmm haven't checked that, would like to find something a lil more simplier than head gaskets. Would a bad oil cooler cause it to just overheat when under a strain

[cchase]

yeah, the engine is worker harder, causing more heat, and the cooler isnt cooling the oil correctly, it all makes sense.

[OregonStroker]

oh ya! if it were a head gasket you'd mix fluid. lose water and oil. and it would over heat just driving it, not with a load. id say if it only overheats witha load it is for sure your oil cooler. drive it down the road a few miles, and before it gets hot jump out and put your hand on the oil filter, if its boiling hot, thats your problem. should only be a little hot to the touch. not scalding. you'l know for sure if the filter heats up way faster than the temp guage/ actual engine heat says.

[dmdillinger]

hey guys sure do appreciate the info i will def try that and let you know the out come