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mike100 · 07-08-2012

Before mine broke this spring, I carefully used a pressure washer about twice a year- mostly around the radiator and front suspension and frame area where all the road grit accumulates.

I actually do lightly blast the heads with the spray, but wash the engine at your own risk until you are experienced enough to know where the water should not go (mostly by hand).
Always wash a cold engine (the TPS sensor may crack inside if a rapid temp change occurs). Also would be good to know if your plenum drain plug is open or plugged.

07-08-2012	#3
mike100 Join Date: Feb 2011 Location: San Marcos CA Posts: 1,786	Re: cleaning engine bay Before mine broke this spring, I carefully used a pressure washer about twice a year- mostly around the radiator and front suspension and frame area where all the road grit accumulates. I actually do lightly blast the heads with the spray, but wash the engine at your own risk until you are experienced enough to know where the water should not go (mostly by hand). Always wash a cold engine (the TPS sensor may crack inside if a rapid temp change occurs). Also would be good to know if your plenum drain plug is open or plugged.