Should have never washed it. Bought it late last summer used it to chiesel plow last fall & this spring. Last week got done with spring planting so I decided it was time give it a good pressure washing. 1st I found a hole in the lower radiator hose that I probably caused with the pressure washer. Hose was in tough shape anyway. Went to Caseih picked up hose & replaced it. Started tractor took it for a short drive _ at higher rpm air conditioner making noise found a shot belt so replaced it plus 2 fan belts which I seen were also shot. Fixed that problem. So l thought now it's ready to go. Went to go get sprayer from neighbors got half way there & engine oil light and alarm went of so limped it home took wires off sending units which were full of dirt maybe the problem no luck still does the same thing. After I run it a while at higher rpms the alarm and light go off and on. It never did this before I pressure washed it. Any thoughts or help would be much appreciated. Thanks in advance.