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coolant flush Sign up here! Search this forum this category all forums for All words Any words Whole Phrase (search options) Auto Repair Home>> Automotive Repair>> Car Troubleshooting hardliquor Novice Sep 26, 2009, 3:22 PM Post #1 of 4 (1720 views) coolant flush Sign In Here's my dilemma: I thought I properly flushed my coolant in my 2002 Expedition by: -draining Radiator -adding a container of Prestone cooling system flush and filled with water, ran engine -drained radiator again -filled with water and ran engine -drained radiator again -filled with 50/50 ratio coolant/water This was 2 weeks ago. Today, I replaced the water pump. I didn't drain anything down first, just used a bucked to catch what ran out of the block when the pump came off. Put new pump on. Cooling system took 2 gallons of 50/50 mix. I've since realized that there is plug to drain the engine block of the coolant too. Now I'm wondering if there might be some residual of that flush chemical still in the cooling system since I didn't correctly drain the system of all it's coolant. I figure that whatever is remaining, it would have to be very diluted, but how much of a corrosive effect would that stuff have? Should I just completely reflush the sytem? Jeff Norfolk Enthusiast Sep 26, 2009, 3:34 PM Post #2 of 4 (1715 views) Re: coolant flush Sign In Probably not enough in there to worry about. But since you seem to be capable of some DIY you can remove the lower radiator hose, remove the thermostat and run a water hose though the block till it comes out clear. Then you should be good. Since you just replaced the water pump, a thermostat would be a good maintenance repair anyway. Jeff Hammer Time Ultimate Carjunky / Moderator Sep 26, 2009, 3:35 PM Post #3 of 4 (1715 views) Re: coolant flush Sign In Don't worry about it. Nobody ever drains the block when doing that. You ran water through it twice, you'll be OK ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional. hardliquor Novice Sep 26, 2009, 4:12 PM Post #4 of 4 (1706 views) Re: coolant flush Sign In Wow...thanks for the quick responses! Am really glad I found this site!   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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