POWER STEERING FLUID ESCAPED RESEVIOR DURING TEXAS SNOW STORM
Everything was fine with my 2017 FORD E-450 V-10 CLASS C MOTORHOME before the Feb. 2021 snow storm in Hillsboro , Texas . During that 7 day period the coldest temperature recorded was 1 degree F.
It stayed below freezing for 5 days.
I waited until the weekend when the temperature got to 65 degrees F and went to check on everything and that is when I noticed a fluid spot underneath the engine compartment. It turned out to be coming from the power steering resevior by way of the FORD twist on cap. I DID NOT SEE ANYTHING CRACKED. Fluid was underneath the cap and down the side of the resevior and on hoses etc. Before I started the motor I took my flashlight and noticed that the resevior was completely full TO THE TOP even though some had leaked out on to the ground .
I started the engine and the fluid level dropped to 1/2 inch below the minimum level line on the resevior. I moved the steering wheel back and forth and there was some of the usual power steering noise but not much and it quit.
MY QUESTION IS DID THE MERCON TRANSMISSION FLUID THAT FORD USES IN THE POWER STEERING FREEZE AND EXPAND BECAUSE THE RESEVIOR WAS OVERFILLED WHEN WE BOUGHT THE MOTORHOME ,OR IS THIS NORMAL AT SUCH COLD TEMPERATURES.
I NEVER NOTICED IF IT WAS TOO FULL OR AT MAXIMUM.
I HAVE PURCHASED A NEW CAP AND PLAN ON FILLING THE RESEVIOR BACK TO THE PROPER LEVEL WITH FORD MERCON ATF WHICH THE FORD DEALER SPECIFIES.
IT ONLY HAS 48,000 MILES WITH AN AUTOMATIC TRANSMISSION AND RUNS GOOD.
CAN I EXPECT THE GEAR BOX OR PUMP TO BE DAMAGED OR IS THIS JUST A EXTREME COLD WEATHER "FLUKE " IN TEXAS.
I HAVE READ OF POWER STEERING HOSES FREEZING IN THE NORTHERN STATES.
so i guess i have to flush the system ?
how would moisture or water get it other than someone adding it ?
Moisture may have gotten into the system if the cap o-ring deteriorated and was no longer sealing properly. It does happen.