mn91 Posted November 30, 2011 Share #1 Posted November 30, 2011 76 280z. at start up no smoke... then after a minute white smoke start coming out for 3-5 mins or so. then no smoke.. what could it be? im not sure if the smoke is oil burning or water burning.... it's hard for me to tell the difference Link to comment Share on other sites More sharing options...
Ben's Z Posted November 30, 2011 Share #2 Posted November 30, 2011 Man, sounds like slight head gasket leak. Any of the plugs look different? Link to comment Share on other sites More sharing options...
Zed Head Posted November 30, 2011 Share #3 Posted November 30, 2011 Ben's Z might be on to something. I had an external water leak between the head and the block that would seal up when the engine got warm. The cooling system held pressure fine when hot, it just leaked a small amount of hot water while the engine was heating up and cooling down. Link to comment Share on other sites More sharing options...
mn91 Posted November 30, 2011 Author Share #4 Posted November 30, 2011 I just replacded my plugs today bc my other plugs were foul.. but when i pulled the foul plugs today it was wet. Every single one of them. And it wasnt like that 3 days ago. I thought it was oil but it ddnt really feel like oil... My car doesnt overheat.. i drove the car probably 30 miles today after i changed the plugs so ill pull them to see what they look like and if they are wet. Link to comment Share on other sites More sharing options...
mn91 Posted November 30, 2011 Author Share #5 Posted November 30, 2011 Also would a little leak cause a slightly low compression on all cylinders Link to comment Share on other sites More sharing options...
olzed Posted November 30, 2011 Share #6 Posted November 30, 2011 Any air bubbles when its running,or oil in the radiator? Link to comment Share on other sites More sharing options...
bobc Posted November 30, 2011 Share #7 Posted November 30, 2011 Sounds like you've got a blown headgasket to me. Just starting, but it is unusual that it would occur in all the cylinders at once. Link to comment Share on other sites More sharing options...
Reverend Posted November 30, 2011 Share #8 Posted November 30, 2011 Did you smell them? They could be wet from the gasoline. Link to comment Share on other sites More sharing options...
FastWoman Posted November 30, 2011 Share #9 Posted November 30, 2011 What does the smoke smell like?No unusual odor = exhaust steamSweet = coolantSomewhat like bacon = oilPungent and black (makes your eyes burn) = excess fuelI agree with others. All plugs looking the same suggests something besides a blown/leaking head gasket. If the plugs are fouled with gasoline, it could be an EFI issue. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now