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Old 18-07-2024, 03:26 PM   #13
JustBill
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Join Date: Jul 2024
Posts: 48
Default Re: Mondeo 2011 Turbo Diesel lack of power

Quote:
Originally Posted by Franco Cozzo View Post
My LV TDCI Focus blew it's intercooler hose off and no codes, certainly worth checking for boost leaks, they're also common for cracking intake pipe into the turbo at the flange.

I reckon you have a leak somewhere in the induction pipework post turbo, or a hole in the intercooler.

The ECU is smart enough to limit fuel in the case of not enough air to prevent it from belching out black smoke, but not cluey enough to throw codes for it.

Same engine as my old Focus, same engine management system.

Mine also blew injector seals, and also it's injectors return line, all it did was leak diesel over itself, didn't cause any issues with performance.
I'm going to visit a third mechanic in coming days. Thanks for your thoughts and i will mention it to him. The ECU restricting fuel due to a air leak makes sense why i can't get any grunt.

Also, i discovered something else in the engine bay. On the fire wall, there seems to be a splatter of very light brown clay like dirt. Could be a pipe or hose of some sort at the turbo side of the engine. I don't think driving over a muddy puddle caused this due to the drip cover under the car. The first mechanic said he checked all the hoses and pipes leading in and out of the turbo and didn't identify a issue. He pulled the exhaust back a bit and seen the turbo working. I'm starting to think now..... "Or did he check?"
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