It is normal for some reason. Mine dosen't do it but a buddies does. It's nothing to be worried about but I would think it would be kinda annoying. SVT has told him along with the dealership that it is common. :smash

 

my cars done it once. im guessing maybe the oil that goes up the intake track from the pcv maybe? does addingmore boost create more crankcase pressure and possible a little more oil go into the intake? im tempted to get some mini air filters for the valve covers and ditch that setup, but the last debate i saw on that there wasnt a clear answer on if its safe or not. dont know why it wouldnt be, by why mess with it right ? :smoker

 

Mine started doing it stock. Even after the drivers side head was replaced for the tick, it still smokes occasionally. I also burn about a quart of oil between oil changes. SVT and the dealer says its normal.

 

I've heard that it's the modular motors. My 97 would smoke, and run really rough after it sat for more than a week, but it would clear right up. I had a 96 Probe GT that did the same thing. My 03 has done it once so far, but it seems fine.

 

My '99 smokes on start up occasionally and also runs rough but clears up quickly after it has been parked for an extended amount of time. It now has over 80k on it and is running well. I haven't noticed either symptom with my '03 with 15k on the clock.

 

I would think that if it is normal, why dont all Cobras do this, mine is so bad that if I happen to leave the vents on or the heater on and start it, I can smell the smoke inside the car ....

 

My 98 did smoke sometimes on start up, but for that model year and others, some cobra's had valvestem problems or valve guide issues.

 

The problem with disconnecting the intake line and PCV loop (and putting on a breather and filter) is that the computer is programmed to compensate for the air metered through the MAF that then goes through the loop. If you disconnect it, your A/F will be off, unless you retune the computer or chip.

 

Not that I've ever noticed. My friend said he noticed a small puff, but he was parked right behind me at night with his headlights on, in a Vette no less. So the lights are right at the pipes.

Since then, I've had people watch it a few times, and nothing.
Mine burns no oil at all. Atfter 3000 miles on this oil fill, it's still exactly between the 5 and the 7 on the part number cast into the dipstick.

Uhh, speaking of which, why did Ford use a cable for a dipstick? I hate that stupid thing. Why did they change from something that's worked for what, 100 years now?

 

Mine started doing it stock. Even after the drivers side head was replaced for the tick, it still smokes occasionally. I also burn about a quart of oil between oil changes. SVT and the dealer says its normal.

A quart between oil changes is not normal to me.. maybe if I had over 100,000 miles, that is still considered ok. You did not switch to syn oil too early did you, before 5000 miles? Rings not seating in properly will cause it to consume oil more than normal. Mine does not burn any oil at all. When you change oil do not put more than 6 quarts and this will put it right in the middle of the low/high marks on the dipsick, this is where it is supposed to be. The stick is wrong. Maybe you overfill it and it is burning it off??

 

my cars done it once. im guessing maybe the oil that goes up the intake track from the pcv maybe? does addingmore boost create more crankcase pressure and possible a little more oil go into the intake? im tempted to get some mini air filters for the valve covers and ditch that setup, but the last debate i saw on that there wasnt a clear answer on if its safe or not. dont know why it wouldnt be, by why mess with it right ? :smoker

Put a inline water separator inbetween the PCV and intake vacuum sorce, problem solved.

Mine used to have an occasional puff of blue smoke, but have not seen it since I installed the oil trap described above. I have to drain out the oil every so often from the trap. When I removed my Eaton and installed the KB there was oil all over the intercooler under the supercharger. This all came from the PCV line and is the blue smoke problem.

 

General

Mines does it also and it's a 1st run Cobra 2 yrs old,pisses me off,but not affecting Performance.Also Left head was replaced and vaule stem seals on both sides and still Smokes at startup sometimes.Svt told me the same thing,normal on mod motors..

 

I agree with the source of the blue smoke problem. The separator is no doubt a ghreat solution, but, as an easy attempt to lessen the problem change the PCV valve. My car was smoking bad and using extra oil. I changed the PCV valve and the problem basically disappeared. Now I change the PVC valve every 5000 miles or so since they are cheap. It is rumored that boost gets to the PVC valve somehow.

Put a inline water separator inbetween the PCV and intake vacuum sorce, problem solved.

Mine used to have an occasional puff of blue smoke, but have not seen it since I installed the oil trap described above. I have to drain out the oil every so often from the trap. When I removed my Eaton and installed the KB there was oil all over the intercooler under the supercharger. This all came from the PCV line and is the blue smoke problem.

 

If the rings did not seat properly? Is there any remedy besides a rebuild?

 

Mine didnt until last week when I melted some pistons. Sould be an early sing of piston/ring/ringland problems.

 

If the rings did not seat properly? Is there any remedy besides a rebuild?

Unfortuanately not..

 

I agree with the source of the blue smoke problem. The separator is no doubt a ghreat solution, but, as an easy attempt to lessen the problem change the PCV valve. My car was smoking bad and using extra oil. I changed the PCV valve and the problem basically disappeared. Now I change the PVC valve every 5000 miles or so since they are cheap. It is rumored that boost gets to the PVC valve somehow.

The Lightnings have been using the water separators for a long time now. I dont think adding a new, same style PCV will not solve the problem, but these links show some different style PCV or separator.

http://www.modularfords.com/showthread.php?t=1686&highlight=separator

http://www.modularfords.com/showthread.php?t=5392&highlight=separator

 

Mine never smoked until i added the KB. Now it smokes at startup every now and then.

 

If the rings did not seat properly? Is there any remedy besides a rebuild?

Depends, if it's beacuse you've used synthetics early on, switching to dino oil for 20K miles would help. If it's never seen synthetic, then no. 4V guys that had smoke problems due to MAC longtubes have gotten progressively better leakdown results after going back to regular oil.

Mine hasn't seen synthetics yet. I'll wait til probably my 4th oil change at 11,000 miles.