Quote:
Originally Posted by vstech
take that rad to a carwash and pressure wash it from the back side. get that sucker totally free of bugs and whatnot.
your car will thank you by not overheating!
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I don't have a lot of confidence in a pressure washer for the following reasons:
1) If you run the pressure washer at sufficient pressure to get the water through the fins and clean them, the unit will damage the fins at the surface of the radiator.
2) If you reduce the pressure sufficiently so that the fins are not damaged, the velocity of the water is insufficient to dislodge the trapped material.
I attempted the use of a garden hose nozzle directly against the fins without any success. I don't believe too much additional water velocity can be utilized without external damage.