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Old 04-02-2011, 02:46 PM
Join Date: Apr 2011
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Default changing antifreeze on 2003 Honda Accord

Hi, i wanted to change the antifreeze on my 2003 Honda Accord 4D 4 cylinder. Is it a simple drain and fill? i know to to empty the reservoir tank and the radiator. those are easy but i read that i also need to empty the engine block which i dont know how to do. and also does my car have an engine block that needs to be drained? i wanted to know how hard it is and where its located. and is there any other hoses i need to drain or anything else i might need to do like a flush. thank you in advance.

2003 Honda accord Ex 4D 4 cylinder
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Old 04-02-2011, 07:52 PM
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Super Moderator : And A Texan
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Shop manual does not specify draining the block, only the radiator.

There is a cut-out opening in the underbody cover underneath the radiator. Reach through to turn the drain plug and allow coolant to drain into a catch pan. Crack the radiator cap to enable venting.

Remove/clean the reservoir and refill radiaotor and reservoir w/ fresh mixed antifreeze coolant.

Start engine w/ radiator cap loosely and warm engine (fans come on). Turn off engine, check coolant level, top up, and tighten radiator cap.

good luck
See you down the ROW
1994 Accord EX
2003 Acura MDX
2006 Acura TSX
2010 Acura TSX
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2003, 2007, accord, antifreeze, block, change, coolant, coolent, drain, engine, flush, honda, plug, refill, replace

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