Still having blue smog come out, can't figure out the source anymore.

[xpeed]

Hey guys. So, when I first got the car, the car would blow out blue smog/smoke during start ups but will subsidize after the engine warms up for a minute but still would have a strong smell, not clean like you would from new cars.

So, I replaced the spark plugs and fuel filters thinking it's probably bad plugs and old filters.

Changed them, still had the blue smog/smoke come out when turning the car on but again, stop after a minute but the smell was now gone and had a clean burnt fuel smell.

Since that didn't solve it, I seafoamed it. Put a bottle in the gas tank and 1/3 bottle of it through the brake booster lines. Everything went normal, a lot of white smoke.

But to no avail, every time I start her up, the blue smog/smoke still comes out. I'm at a loss now. I don't know how to fix this problem and I'm wondering if you guys know.

Could it be a bad seal? Could it be a build up of gunk on the poppet valves? I don't know. I appreciate from any help. Thanks in advance.

[sam333]

The most common cause( of start up oil smoke) is bad valve guide seals. Have someone follow you while you drive, and let your foot off the gas pedal , you should get a little puff of smoke then too( high vacuum of closed/ partialy close trottle will suck oil past the valve guide seals).

[Luckynumber5]

Valve seals +1

[xpeed]

Thanks. I'll get that checked up on my next maintenance check-up.

[JohnGD]

Blue smoke on start up is more common on these sludge maker engines. The intake seals made of a cheaper rubber (to save 50-80 cents each) can't take the heat and they harden. The same seals on Gen 3 is less of a problem.

You can try a high mileage oil or some claim synthetic oil helped lessen the start up smoke as a temporary fix.

The solution is to change out the valve stem seals. I'd recommend Fel-Pro premium seal set ($30 on rockauto, typically made in Japan) and a new valve cover gasket set with spark plug tube seals $18.26.
http://www.rockauto.com/catalog/moreinfo.php?pk=260983
http://www.rockauto.com/catalog/moreinfo.php?pk=1949526

Don't get separate intake/exhaust seals, because this means cheap intake seals. Exhaust seals should work fine on intake (not on other engines with different in/ex valves however), but I'd just use Fel-Pro. A properly equipped shop shouldn't take more than 1 hour beyond a timing belt job to change these on an I4.