Ecoboost Performance Forum

Ecoboost Performance => Troubleshooting, Maintenance, TSB Articles => Troubleshooting => Topic started by: Gray Brick on May 18, 2019, 03:40:47 AM

Title: Had a tiny exhaust leak....
Post by: Gray Brick on May 18, 2019, 03:40:47 AM
I was getting a startup tick and thought it was my chain...

Amazing it wasn't louder and went away after startup.
Title: Re: Had a tiny exhaust leak....
Post by: SHOdded on May 18, 2019, 06:12:02 AM
Don't see those busted too often, must be all the power you are forcing through there :D

Glad it was a simple fix.
Title: Re: Had a tiny exhaust leak....
Post by: Gray Brick on May 18, 2019, 11:23:01 AM
Still a PITA to take everything apart on jack stands.

I wonder if it was bad enough to throw off my fuel trims.

Under hood heat also started to become a problem.
Title: Re: Had a tiny exhaust leak....
Post by: StealBlueSho on May 18, 2019, 11:26:07 AM
Quote from: Gray Brick on May 18, 2019, 11:23:01 AM
Still a PITA to take everything apart on jack stands.

I wonder if it was bad enough to throw off my fuel trims.

Under hood heat also started to become a problem.

Did you reuse the gasket when you swapped the turbos? That could have caused that problem...always best to replace gaskets that are in very high heat area's when swapping parts.
Title: Re: Had a tiny exhaust leak....
Post by: ZSHO on May 18, 2019, 12:44:43 PM
The very reason I aways recommend to change the Gaskets especially being close to 500 deg exhaust heat!
Definitely would of thrown your Fuel trims off!
Glad you caught in time.  Z
Title: Re: Had a tiny exhaust leak....
Post by: Gray Brick on May 20, 2019, 03:05:05 PM
I changed all gaskets when the turbos were replaced.

I am assuming the bolts from the turbo to the manifold became loose and created a small leak that became larger and larger.
Title: Re: Had a tiny exhaust leak....
Post by: SHOdded on May 20, 2019, 05:17:50 PM
Yes, that could very well be true.  Just like Ford says with wheels, checking the bolts a couple hundred miles after install is a must.  Dunno if loctite would have helped any.
Title: Re: Had a tiny exhaust leak....
Post by: ZSHO on May 20, 2019, 05:33:02 PM
Bit of RTV Sealant goes a long way.  Z

https://www.amazon.com/Permatex-81158-Silicone-Adhesive-Sealant/dp/B000AL6WLA/ref=sr_1_3?keywords=black+silicone+sealant&qid=1558388585&s=gateway&sr=8-3 (https://www.amazon.com/Permatex-81158-Silicone-Adhesive-Sealant/dp/B000AL6WLA/ref=sr_1_3?keywords=black+silicone+sealant&qid=1558388585&s=gateway&sr=8-3)
Title: Re: Had a tiny exhaust leak....
Post by: Gray Brick on May 20, 2019, 06:29:03 PM
No sealant necessary on this one...

The factory gaskets are double wall crush type.
Title: Re: Had a tiny exhaust leak....
Post by: ZSHO on May 20, 2019, 09:54:55 PM
Hmm! Here are mine! Z




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