I am going to be changing the coolant on my 94 Accord EX (F22B1) and I pretty much know what to do when changing the coolant but this is going to be my first time changing coolant. Some of the things I'm wondering is getting at the air bleeder bolt. Its in a hard to reach spot and I'm pretty sure I have to move some stuff out the way like the little hoses and maybe the egr electrical connector. I'm wondering what is the easiest way to get to this bolt? Also in my haynes manual it says to put non hardening sealant on the threads of the coolant drain plug on the block. I'm wondering do I do this for the radiator drain plug also?

 

The bleeder bolt should be visible without having to remove anything else to get to it. Just use a 1/4 drive 12mm socket with a long extension. I mean it's not buried or anything. Sealant on the block plug is a good idea, but NOT on the radiator drain plug, because it is plastic and has an o-ring of its own. Other than that...nothing to it, and good luck.

Oh btw, there is a trick I learned for bleeding the system when I was still working for Honda. I don't suppose you have a spare CV boot laying around do you? I would slip the narrow end of the boot over the radiator cap fitting, fill the radiator, and let the engine run until the fans come on. Using this method I never even had to use the bleeder screw. Yes the boot will be full of coolant, so when the fans come on, pull the boot off and put the radiator cap back on.

 

do you just use regular old skool green coolant or the long life stuff?
when i asked the parts guy @ the dealer, he said for an old car liek mine, just use regular green coolant. the orange is for the newer vehicles.

 

the parts guy is correct. the orange stuff is for 05 and newer vehicles. All the others take the "old skool" green coolant.

 

Thanks for the reply. Yeah I found the bolt it just seems like its at a weird angle and it has little hoses and a connector near it. When I tryed fittin a wrench near there it was hard to move it cuz of the space. If I use a the 1/4 drive ratchet with an extension and a 12mm socket ill b able to get to it without moving anything? That sounds like a good idea i would try that if I had an extra CV boot to use.

 

Funny thing, I just bought Honda Coolant and it was BLUE color!

 

That's right...in fact I used a wierd socket. It was a 1/4 drive 12mm "wobbly" socket...meaning it was like a universal joint with a socket end. I used that and a long extension, and I never had to remove anything to get to the bleeder screw. But a regular 12mm socket should work just fine. I agree it's at a wierd angle, that's why I never tried to get a wrench on it.

 

that IS wierd...but to put everyones mind at ease, the blue and green CAN be mixed together. The red must not be mixed with anything else, because it will literally turn into a brown sludge, and clog everything.

 

The red-orange is dexcron isn't it I had that sh** in my GM's PITA that stuff was. Mixing dexcron with normal coolant fluid makes a sludgy mess if I recall.

My Honda's even our '04 TSX used the green stuff, but I just purchased new fluid for my Accord and it was blue. I was told the switch to blue was to find out who wasn't using Honda fluid in the future.....

I used the bleeder bolt but I didn't pull the block plug what a PITA, I'd rather spend and extra few bucks and just change my coolant more often, the small half qt. left in the block won't harm anything if you keep up to date on your fluid schedule. What little old fluid is in the block will simply be diluted by the new mixture added.

The TSX is wonderful, no block plug, no bleeder bolt simply drain the radiator and refill coolant: change complete...joy.

 

Thanks for the advice. I am going to give it a try with the long extension and 12mm socket. yeah when i first looked at it i was thinkin dang. i tryed stickin that wrench in there and was like this isnt goin to work. yeah i do love the way the engne is set up. most of the stuff is in easy sight and easy to get too. my friend had a lil old carburated crx and the bleeder bolt on that car was in the easiest spot. it was where the upper hose comes from the block with nothing around it. About the coolnat color i did notcie when my car had Honda coolant in it that it looked like a different color than the average green coolant. i know that they are basically the same tho unlike the orange coolant. I am going to be putting the Honda coolant back in my car when i change the coolant.