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Old 09-12-2008, 09:23 PM
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Default 1991 Accord EX Freeze Plug Location?

I am trying to find the location of the freeze plug on my 1991 Honda Accord EX 4 door sedan, 5 speed manual so that I can install an engine heater.

The instructions that came with the engine heater - which I bought at napa part number 605-3231 - state that it should be left rear of the engine near the oil filter. However, the only plug near the oil filter that I could locate is just below it and appears to be too small.

The Haynes manual shows the non-threaded or punch style of freeze plugs and the one specified for my vehicle by napa is threaded. I was unable to locate a plug of either type.

Any assistance would be greatly appreciated, it's already starting to get cold!
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Old 01-13-2009, 10:01 PM
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Default RE: 1991 Accord EX Freeze Plug Location?

i own a 1992 accord model.My block heater is installed exactly where you mentioned.
Notice that there is a drain tap/plug to drain the block.Unscrew it and install the block
good luck
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Old 01-14-2009, 11:55 AM
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Default RE: 1991 Accord EX Freeze Plug Location?

This has pictures for a F23, but it should be nearly identical for your car too:

1999 Honda Accord LX F23A1 5MT - 213,000m

** On the road to ASE Certification **
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1991, 1992, 6053231, 91, accord, block, diagram, freeze, freezeplug, heater, honda, plug, plugs, replacement, soft

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