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2004 f150 fx4 70,000 miles 5.4 It was a gift to me, so I…

Customer Question
2004 f150 fx4 70,000 miles 5.4 It...
2004 f150 fx4 70,000 miles
5.4
It was a gift to me, so I could put some money into it.
Exhaust manifold leak
Should I just have headers put on and run dual exhaust? Would I need two new catalytic converters? I've been looking at magnaflow cat back with duals straight out the back. Is it expensive?
Submitted: 8 months ago.Category: Ford
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Answered in 2 minutes by:
9/20/2017
Ford Mechanic: Gunvir Singh,
 replied 8 months ago
Gunvir Singh
Category: Ford
Satisfied Customers: 2,013
Experience: Master Tech at Kennesaw Auto Tech
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Hello, let me review your request. Please stand by.

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Ford Mechanic: Gunvir Singh,
 replied 8 months ago

Is it the exhaust manifold leaking or just the gasket?

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Customer reply replied 8 months ago
No idea. I hear the noise and recognize it to be from just one cylinder. It's louder at a cold start before the metal heats up, and when the engine is working harder
Ford Mechanic: Gunvir Singh,
 replied 8 months ago

Exhaust leak with engine cold usually point towards a worn exhaust manifold gasket.

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Ron
Ron
Ron, ASE Certified Technician
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