Headache Re-revisited

[1993SVT]

This car of mine is really lookin for a "for sale" sign. I posted a while ago about a smoking issue I was having in my `93 cobra, after installing a new rear main seal. It turned out that I had to take it all back apart and install a crankshaft repair kit. So, I did all of that and it still leaked a little and I had a bit of smoke coming up throught the center counsel. Well, all of a sudden it stopped leaking and no more smoke so I thought I was rid of the problem. Wrong. Well, I'm not seeing a leak anywhere but I'm still getting the smoke pouring out from the center counsel while I'm driving. It won't do it at idle. Only when I get going. I was told that the seal may have popped out due to crankcase pressure but, ,like I said, it's not leaking on the floor. Anyone have any ideas as to what's happening here? I'm clueless and at my wits end.

 

[Vinnietbird]

Have you checked the valve cover and intake gaskets?Sometimes the intake will leak in the back or from the valve covers and get on the exhaust and burn off.

 

[Mustang5L5]

Check your dipstick. Make sure oil level is correct.


I second checking intake gasket at rear of motor

 

[jrichker]

1.) Check the PCV valve behind the back of the lower intake manifold. Be sure the PCV valve is seated correctly in the grommet and the grommet is seated in the block. If it isn't, you will get an oil leak that is hard to find. If the PCV or the PCV screen clogs, it will create pressure in the crankcase. Clean the screen in the PCV grommet while you are at it.

2.) Replace the PCV valve and grommet - it isn't expensive. The valve ($2) and grommet ($8) are about $10 at AutoZone. The PCV screen is another $9.

 

[FoxGT87]

any transmission leaks? my trans had the rear seal messed up from a bent yolk, as i would drive tranny fluid would hit the drive shaft, and the drive shaft would spin it onto the exhaust. it would smoke up into my center console.

 

[1993SVT]

any transmission leaks? my trans had the rear seal messed up from a bent yolk, as i would drive tranny fluid would hit the drive shaft, and the drive shaft would spin it onto the exhaust. it would smoke up into my center console.

That is something that I was thinking it might be but I haven't checked for leaks on the tranny yet. It's brand spankin new so I didn't think it would be that. But, I did install a spacer in between the mount and the tranny as suggested by others so I would not have a vibration due to the Tremec tailshaft. Maybe I should remove the spacer. The smoke doesn't smell like oil. Hardly any smell at all. Doesn't look like oil burning either but then again I'm using Castrol Syntec. Thanks for the input.

 

[1993SVT]

1.) Check the PCV valve behind the back of the lower intake manifold. Be sure the PCV valve is seated correctly in the grommet and the grommet is seated in the block. If it isn't, you will get an oil leak that is hard to find. If the PCV or the PCV screen clogs, it will create pressure in the crankcase. Clean the screen in the PCV grommet while you are at it.

2.) Replace the PCV valve and grommet - it isn't expensive. The valve ($2) and grommet ($8) are about $10 at AutoZone. The PCV screen is another $9.

I replace those already but when I asked for the screen I was told that there wasn't one("we're not showin one") for that engine. I called advanced auto and they'd have to order it for me(?) and it would take 5-9days...lol. Called Autozone and they said they didn't have one listed for my engine either.

 

[1993SVT]

Have you checked the valve cover and intake gaskets?Sometimes the intake will leak in the back or from the valve covers and get on the exhaust and burn off.

I changed the valve cover gaskets when I did all of this work also. It was needed. changed the pcv, the grommet, there was no screen and nobody seems to have one listed for that engine. I'm going to check the back of the intake though. You're the 2nd person to tell me that so it's definitely on the "to do" list. Thanks.

 

[Pokageek]

This happened to me and it was a result of the engine blowing smoke out of the breathers. This is normal for some cars built with loose tolerances. I put an evac kit on it and no more smoke like that. Ask Rick Hawver about it.