Q: Exhaust manifold leak. Headers or stock manifold?

asked by on

I have a 2003 Ford Expedition with a 5.4 2WD. It has a slight exhaust leak from the exhaust manifold. I noticed that there is one nut missing from either side. So each side has a stud missing a nut. They are rusted and very hard to reach since there is little clearance especially with the strut towers. I ordered a set of JBA shorty headers and the muffler shop I took it to l, took off the wheel fenders to look closer and he told me he wouldn't do it. He said not to put headers on cause I would have lots of problems down the road with the gaskets cause I can't retighten the bolts. Can you tell me if you can at least replace the gaskets? Should I just return the headers and get stock manifolds?

Thanks Reuben

My car has 183000 miles.
My car has an automatic transmission.

The manifolds on this engine warp and would need to be replaced to stop the leak. The manifold studs would also need to be replaced with the newer stainless steel type of studs and nuts. I agree with the muffler shop about the headers. On another note, the headers would be even noisier then the original manifolds. I recommend having a mechanic, such as one from YourMechanic, inspect the leak and replace the manifolds for you if needed.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Exhaust manifold leak. Headers or stock manifold?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a 2009 ford flex. I have intermittent problems with the coolin fan causing overheating. The fan will attempt to turn on and

Hi there. Typically this type of problem is an indicator of a fan motor that is failing and needs to be replaced. The fact that it causes a rise in engine temperature is alarming, which might indicate other cooling system...

Q: I think the anti-lock security on my car is active and it doesn't start.

Hi there. Look at the anti-theft system on the vehicle and see if the light is flashing. If the light is flashing, then remove the battery cables and leave them off for 13 minutes. While the cables are off, put...

Q: Q: Car won't start at all

Hi. This vehicle has a history with these types of issues, like a failing battery and starter, with other owners. The system would need to be checked to see if the battery or starter are not the problems. By doing...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...