Valve Cover gasket

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Kerr

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I had mine replaced on my 2017 Expedition about 3 months ago at the Ford Dealer ship and I do believe it's leaking oil again. It started smoking when I was at a red light that's what is making me think it's the same thing again. Has anyone ever had this problem??
 

rslynes

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Never had valve cover gasket issues, did have vacuum pump seal replaced. It's behind the engine on the passenger side next to the firewall (and a pig to get to).

That smoked very similarly to a valve cover leak, but it was only noticeable after engine warmed up and while idling (like at a traffic stop).

Leaky turbo fittings will cause smoke too as the oil drips onto the exhaust.
 

99WhiteC5Coupe

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Never had valve cover gasket issues, did have vacuum pump seal replaced. It's behind the engine on the passenger side next to the firewall (and a pig to get to).

That smoked very similarly to a valve cover leak, but it was only noticeable after engine warmed up and while idling (like at a traffic stop).

Leaky turbo fittings will cause smoke too as the oil drips onto the exhaust.


I had the vacuum pump, gasket and fitting replaced on my 2015 Expedition Limited under its Ford ESP - as well as a leaking turbo fitting.
 

AWAR

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I have had both seals leak around the variable cam timing actuators. I replaced both actuators and the seal that came with the actuators did not seal properly. I purchased a set of Dorman seals and used some silicone sealer and got it to quit leaking. 2006 5.4.
 

TXGordon

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I'm having the same issue and it killed my starter. I think the cause is that the valve covers may not have RTV at the joints where the head meets the front and back cover (wasn't me). I don't want to pull the valve covers, so I'm going to try a little RTV right at the joint on the outside of the head at the valve cover and see if that fixes it. Then I can replace my starter without worrying about it getting soaked in oil again.
 
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