Smoking on decel only

[Jordan]

Valve stem seal would be crazy. I'm not smoking on start up but that seems to be about the only thing it could be at this point. Previously I looked up to see if anybody had needed to do valve stem seals and I couldn't find a case of it. I'll look into it more now

[StealBlueSho]

Valve stem seal would be crazy. I'm not smoking on start up but that seems to be about the only thing it could be at this point. Previously I looked up to see if anybody had needed to do valve stem seals and I couldn't find a case of it. I'll look into it more now

I have never seen anyone on the SHO forums have a diagnosis of valve stem seals. Not that I couldn't happen, just haven't seen it.

Might be worth while checking on the F150 EB forums as they tend to run their motors harder so someone over there might have seen it...

If I am not mistaken, wouldn't a compression leak down test confirm or deny it? I could be wrong on this.


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[Jordan]

Valve stem seal would be crazy. I'm not smoking on start up but that seems to be about the only thing it could be at this point. Previously I looked up to see if anybody had needed to do valve stem seals and I couldn't find a case of it. I'll look into it more now

I have never seen anyone on the SHO forums have a diagnosis of valve stem seals. Not that I couldn't happen, just haven't seen it.

Might be worth while checking on the F150 EB forums as they tend to run their motors harder so someone over there might have seen it...

If I am not mistaken, wouldn't a compression leak down test confirm or deny it? I could be wrong on this.


Sent from my iPhone using Tapatalk

Compression test wouldn't show a bad valve stem seal. I think you are thinking a valve seal itself that seals the valve to the head while a valve stem seal seals the camshaft side of things.