Coolant crossover pipe cap/plug

Stuck coolant crossover plug, eh? You're not the first person, don't worry.

Try letting the engine run for a few minutes and THEN try to remove it using a quality pair of vice grips.

Allowing the engine to run for 5 mins or so will warm up the metal surfaces - similar to using a torch to loosen stubborn bolts. The 1/4" plug on the cap commonly gets stripped out due to hasty attempts at removing it with the end of a 1/4" socket wrench and lack of leverage.

If that doesn't remove the cap, you can always try to weld a socket to the cap and remove it.

Or, if you choose to replace the entire coolant crossover assembly ($$$)...

...one of the these reputable parts guys should be able to help you out:

Randy Stinchcomb

The Parts Counter w/ Randy Stinchcomb - Modular Revolution Forums

OR

Steve at Tousley Ford 1-800-328-9552

Tousley Ford Parts Depot


G'luck!

My ford guy said 2R3Z~8548~AA . this the whole thing.list is 171.21 and is available