Powerboost Coolant Leak Repair

[stonefly]

I purchased Powerboost Platinum late January.
Two weeks in, coolant leaking on the driveway.
First inspection by Ford dealer in February: "Nothing wrong here", until I showed them the picture dripping off the exhaust pipe at mid-passenger side.
They wisely reinspected the vehicle and concluded the "Exhaust Intermediate pipe" required replacement; this component contains the hyrbrid battery coolant valve ass'y. This part, of course, was reportedly stuck on a ship somewhere and of course the dealer would call me when it was available.

I dealt with leaking coolant until I started seeing increased need to replace coolant in SEP. Then I called the dealer, bitched at them a bit, leaving VM after VM one day.
Then I got peeved and called the Ford 1-800-EAT-SHIT number. I suspect someone from Ford called the dealer because next thing I knew they were interested in making it right.
All covered under warranty as expected. Moral: Don't sit and wait.
PART NUMBER: ML3Z-5a212-W
DESCR: Extension - EX

I know some other folks have posted on this, thought I'd add something about correction of the problem.

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[Dadnkid]

Any update?

 

[stonefly]

Repair seems to be working well.
I towed my 7K lb trailer through some grades this week and it performed well. Bigger test on 1200 mile trip coming up in a few weeks.
I expect that will be fine too, as I towed the trailer up 6-8% grades over 3k miles with it leaking over the summer.
I've had overtemp alarms several times when towing on all trips with big hills before and since the repair. They spike, alarm, but don't reset until you turn engine off. Turn right back on, clears the alarm. There is an explanation the alarm scheme and engine response to high temps that involves reduction in power and venting through some of the cylinders to cool the engine.
Pretty nice to not see coolant on the driveway.

 

[Dadnkid]

That is awesome. I hope my repair goes just as well. Do you remember the part(s) they replaced? As of today, they order a water heater hose (NL3Z18663A). I'm still looking up the part, location but its not the heat exchanger as everyone else. So not too confident but fingers crossed.

 

[stonefly]

This the part/descr:
PART NUMBER: ML3Z-5a212-W
DESCR: Extension - EX
"Exhaust Intermediate pipe" required replacement; this component contains the hybrid battery coolant valve ass'y.

 

[Dadnkid]

This is what everyone is replacing. I really think I will be picking. Up my truck just to point out that it’s still leaking

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