Smoke on start up?

[Mike K]

Well I noticed for the first time this weeks.d that when the car has been sitting for a few hours then go to start it up there is a little puff of bluish smoke on start up then after the initial puff nothing. I'm just curious could it be a PVC valve or am I looking at other possible issues.

Mike

 

[Xorak]

how many miles on the car? mod motors aren't known for smoke on startup, they usually wait to start smoking until they've been idling for a bit.

 

[Mike K]

I've got 44k on it. I just noticed it like I said and it only does it one in a while.

 

[UltraKla$$ic]

#8! Trade it for a 5.0! lol

Valve seals?

 

[Mike K]

That's also what I was thinking but I am pretty sure it started after I switched to amsoil 5-20 so next oil change I'm going back to Valvoline synthetic.

 

[Back@itagain]

A lot of the 3 valves will give a blue puff if you start the motor just to move the car or whatever and then shut it down before it comes up to operating temps. My Expedition was notorious for this. If it isnt doing it every morning after sitting over night I probably wouldnt worry to much about it. You could always remove the intake manifold to take a look at the backs of the valves if you are that concerned about it.

 

[Mike K]

Good idea. I just noticed it the other day so now every time I start it I jump out to look. Lol

 

[AnotherS197GT]

Mine has done it from time to time. It mainly happens after it sat for a while or when my mom would start it, move it, and shut it down within 30 seconds of starting. When I did my cams last summer I replaced my valve seals and it still did it occasionally. I wouldn't worry about it!

 

[19COBRA93]

mod motors aren't known for smoke on startup, they usually wait to start smoking until they've been idling for a bit.

To the contrary... Mod motore ARE known to smoke on startup. They're PCV systems suck balls. Smoke once running is never good. That's rings or valve seal problems.

 

[Mike K]

Thanks. I won't worry about it until it gets worse then.

 

[char259]

06 no worries mine does the same thing if it's sat for a bit.

 

[UltraKla$$ic]

+

= no more smoke!!!!!

 

[AnotherS197GT]

Is that how you keep your dry rotted seals from smoking?

 

[427R]

Common problem on S/C cars. Install oil seperator in PCV line. You're sucking oil into intake. JLT makes the best looking one. They're all way too expensive. Link to JLT.
http://jlttruecoldair.com/ZenCart/index.php?main_page=index&cPath=378

 

[Mike K]

I don't have a supercharger plus I already have a separator on my car.

I noticed yesterday that I down shifted to pass someone and it tossed out a little cloud. I'm starting to worry a little bit now. It only has done it twice but I don't know. I might try a new pcv valve just cause they are cheap.

 

[19COBRA93]

I don't have a supercharger plus I already have a separator on my car.

I noticed yesterday that I down shifted to pass someone and it tossed out a little cloud. I'm starting to worry a little bit now. It only has done it twice but I don't know. I might try a new pcv valve just cause they are cheap.

Sounds more like a ring or ring land issue to me. I've experienced that many times.

 

[Fullboogie]

Have someone follow you while you romp on the gas pedal. See if it smokes under load, then see if it smokes under decel in gear. That will tell you a lot...

 

[Mike K]

Sounds more like a ring or ring land issue to me. I've experienced that many times.

Wouldn't it do it all the time though?

Have someone follow you while you romp on the gas pedal. See if it smokes under load, then see if it smokes under decel in gear. That will tell you a lot...

Good idea.

 

[19COBRA93]

Wouldn't it do it all the time though?


Good idea.

Yes most of the time. I only noticed mine a few times, but people following me would tell me about it even when I didn't notice it myself.

Mine was most pronounced on startup, on decel in the upper RPM, and sometimes when idling after a drive (like after coming to a stop after exiting the freeway).

Has your car ever had nitrous?

 

[Mike K]

No it hasn't. I was thinking about it though and I switched gas stations about a month ago. Maybe I got some bad gas.

Damn does this suck!