2003 bleeder valve size

[Threedognight]

Can anybody PLEASE tell me what size the brake bleeder valve is on passenger side 2003 3.0? Ive tried everything. Its either too big or too little. Metric and standard

 

[pjtoledo]

front or rear?
after 23 years chances are it's not the factory ones and may be any size.
use quality 6 point tools. scrape the rust off if it's there.
clean out the hole, spray some "freeze off" in it to shrink it.
for a stubborn one I would put a socket on an extension to give a straight pull. wrenches actually side load/offset load parts.

5/16=.3125
8mm=.3149
11/32=.3437
9mm=.354
3/8=.375
10mm=.393
11mm=.433
7/16=.4375

 

[Jazzer]

I just did front calipers on my '07, sure it's not the original calipers, but one bleeder was, as far as I could tell, a 9.5mm. I used vise grips.

 

[lil_Blue_Ford]

It varies widely once you get into aftermarket parts. I’ve bought a pair of replacement calipers before to find that they each took a different size wrench. Irritating. I’ve also found the oddball sizes which I’m convinced must be sized to Whitworth specs (for you youngsters that was an oddball size for older British vehicles and was neither SAE nor Metric).