Coolant bypass pipe!!!

[mercuryown123]

2003 mercury marauder - Ford part# 3W3Z-8548-CA Please let me know asap, thanks!!! It's corroded and needs to be replaced.

[RubberCtyRauder]

You mean cross over tube? Aka COT? Are you doing a eaton swap? Yours corroded? They are discontinued from ford

[mercuryown123]

Thanks for the info- That may be it, can you see the attached picture? Does the crossover pipe replace this part #?

[Ourobos]

Indeed that is a cross over tube

[mercuryown123]

Any ideas on how / where I can get one? Thanks for your reply. (Car keeps overheating).

[RubberCtyRauder]

Have you recently opened the cooling system? If yes and you did not burp the system then you have air in it and will overheat until you get rid of air pocket. The cross over tube does not cause overheating

[NXSBOB]

Thanks for the info- That may be it, can you see the attached picture? Does the crossover pipe replace this part #?
Is that yours in the picture?

[mercuryown123]

Yep, This is the one.

[376shovel]

That doesn't look that bad. I would clean and paint, get a stainless steel plug and burp it correctly. Call it done.

[Sactown]

How is best to burp a MM?

[camelgrundle]

First off clean your engine bay. Then clean and paint your cot if it's not leaking, then burp your system. Google reische burping procedure and should be first link.

[Sactown]

First off clean your engine bay. Then clean and paint your cot if it's not leaking, then burp your system. Google reische burping procedure and should be first link.

Cool thanks http://www.reischeperformance.com/refill.html