Coolcat390 Posted April 10, 2011 Share Posted April 10, 2011 I want to flush out a 7.3 the way we do on the 6.0 with VC9. Is there any plugs in the block so i can make sure that i completely remove the vc9 after the flush? Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted April 10, 2011 Share Posted April 10, 2011 As I recall there are 1/4-18 square head plugs on the block located at the rear of the engine. You could also remove the block heater is equipped or the plug on the rear oil cooler header. In this case you would also want to remove the thermostat first and install a flushing tee in the heater line. Quote Link to comment Share on other sites More sharing options...
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