White smoke from exhaust manifold

[Rommy]

Originally Posted by theWeezL

just thought of another diagnostic question to ask...what does the vapor smell like? Coolant has a sort of sweet smell to it, oil burning is acrid and obviously petrolium based, and powersteering fluid or ATF is kind of a sharp sweet petrolium smell.

what does yours smell like?

It's definetly not coolant. It's either power steering fluid or oil. I'm not sure it's oil though, as oil usually has a stronger smell; this has, like you said, a half oil/sweet smell.

I'm going to have my mechanic check it out this week and see if he can do something about it. I have to change the power steering line either way, I'm putting a bottle of fluid every week as it is, dripping like crazy.

[theWeezL]

gotta be a PS line somewhere then...they do criss cross under the engine. Maybe its a pinhole in the high pressure line and it squirts onto the exhaust manifold from time to time.

[cheshire1369]

white smoke could be a sign that it is running to rich (too much fuel per air ratio), while it is a simple fis, ie recalibrating injectors, to just changing the air filter... to long like that will cause it to run at a higher temp, causing probs down the line, to keep a supra happy, change filters, oil, and sparkplugs regiliously! should keep probs to a bare min

[Rommy]

Wow, holy old thead!

I haven't had the Supra for years, haha. Didn't even think this thread still existed.