94 celica st puffing blue smoke Options

[stryue_19]

hey well i just want to get some of ur opinions about ur car puffing out blue somke? What could the be cause rite now i have no clue why my car is doing that?
leave me some comments on it if you can help me figure it out...thanks

[96bluevert]

sounds like your burning oil.

Does it happen continuously while driving or only on start up?

[TerryE]

If it's only at start-up, it most likely the valve seals, it is extremely typical on celica's from 77 at least to the present.
Mine have been doing that since I can't remember. usually after 100,000 miles on the clock. it's nothing major, the seals are cheap, the bugger is pulling the head to get to them and getting the right valve spring compressor (I had to fudge with one from murray's and a hot-glued deep-well socket.) I wouldn't bother unless you using up a lot of oil.
Other than that it could be(oh, my G--. the piston rings, oh no!!!) hope this helps!

[stryue_19]

sounds like your burning oil.

Does it happen continuously while driving or only on start up?

yeah it only happens when i start it up

If it's only at start-up, it most likely the valve seals, it is extremely typical on celica's from 77 at least to the present.
Mine have been doing that since I can't remember. usually after 100,000 miles on the clock. it's nothing major, the seals are cheap, the bugger is pulling the head to get to them and getting the right valve spring compressor (I had to fudge with one from murray's and a hot-glued deep-well socket.) I wouldn't bother unless you using up a lot of oil.
Other than that it could be(oh, my G--. the piston rings, oh no!!!) hope this helps!

thanks that does help me to understand the situation now.

[GriffGirl]

I think this is particularly common with the STs. Mine does it too. About 110k on the engine, 237k on the rest

[CelicaGTS94]

my 5sfe has been doing it since I bought it. It had 160,000 Km's when I bought it. It is a known issue with the celica's. valve seals!!

[Tigawoods]

my 5sfe has been doing it since I bought it. It had 160,000 Km's when I bought it. It is a known issue with the celica's. valve seals!!

x2

[Bitter]

its a known issue with MANY engines as they age and rack up miles.

start adding about 1/2 quart of Automatic transsmission fluid to your oil at oil changes and it'll slowly do two things.
1. clean the engine gently
2. soften and renew the seals slowly.

i no longer have any oil leaks, burn only the tiniest puff on startup, and dont loose more than 1-2mm's off my dipstick between 5000 mile oil changes. though i did also seafoam my crankcase, 1/3 can and 20 minutes idling followed by an oil change.

[stryue_19]

its a known issue with MANY engines as they age and rack up miles.

start adding about 1/2 quart of Automatic transsmission fluid to your oil at oil changes and it'll slowly do two things.
1. clean the engine gently
2. soften and renew the seals slowly.

i no longer have any oil leaks, burn only the tiniest puff on startup, and dont loose more than 1-2mm's off my dipstick between 5000 mile oil changes. though i did also seafoam my crankcase, 1/3 can and 20 minutes idling followed by an oil change.

alright thanks i'll try that.

[Taskbot]

I'm going to try the auto transmission fluid thing.
Is there any particular type I should aim for or is it all the same ****. I remember when I did my co-op at Acura we had 3 different types that all basically did the same thing but since its my car I don't want to risk putting the wrong **** in.

[slow_yota]

Hmm..Question, Mine doesnt puff blue smoke but at start up it for like 10 secs it will blow white smoke..Is there a big difference ?

[Taskbot]

I think it might be the same thing. I'm almost certain that this is a problem with most 7A-FEs since it was one of the first questions I asked on this forum.

The color thing is pretty moot unless you are blowing a lot of smoke. (than you can see the "color" easily)
A better thing would be to go by smell. If you know what burning oil/burning coolant smells like, let the car sit for a bit to make sure its dead cold... Get in, start it up and slam it into reverse. Back through the smoke that comes out of your tailpipe and inhale.

Thats how I figured out I was burning oil

You shouldn't really need to go to that much effort, but putting effort into redundant things is hilarious.

[Bitter]

its going into your engine, so it doesnt really matter what kind of trans fluid you use. just grab some cheap universal stuff.

[Remy]

its a known issue with MANY engines as they age and rack up miles.

start adding about 1/2 quart of Automatic transsmission fluid to your oil at oil changes and it'll slowly do two things.
1. clean the engine gently
2. soften and renew the seals slowly.

i no longer have any oil leaks, burn only the tiniest puff on startup, and dont loose more than 1-2mm's off my dipstick between 5000 mile oil changes. though i did also seafoam my crankcase, 1/3 can and 20 minutes idling followed by an oil change.

alright thanks i'll try that.

Make sure you change your oil within 200 miles after you put in the A/T fluid.

Hmm..Question, Mine doesnt puff blue smoke but at start up it for like 10 secs it will blow white smoke..Is there a big difference ?

White smoke is coolant and in rare cases fuel.

[Bitter]

nah, you dont need to change again within 200 miles. just run that it for the duration of your normal oil change interval. use some with every change until you notice less smoke burning then use every other change if you feel the need.

[Por2geezcelica]

so adding a half quart of ATF to the engine will actually benefit it, and stop small oil leak by softening the seals? This wont shorten the life of the motor, or cause damage over the long run will it?

This post has been edited by Por2geezcelica: Aug 23, 2008 - 1:49 AM

[Bitter]

no, its an OLD mechanics trick. trans fluid has additives to keep the countless rubber seals inside the transmission soft and supple for decades on end as well as alot of detergents to keep gunk from building up on the insides of the transmission.

inside your engine it will do the same things, soften old seals and gently clean up gunk. its a pretty common trick to run some atf in with engine oil for a couple oil changes to help quiet noisy lifters on engines.

[Remy]

nah, you dont need to change again within 200 miles. just run that it for the duration of your normal oil change interval. use some with every change until you notice less smoke burning then use every other change if you feel the need.

I like to flush that stuff out as soon as possible, its like flushing the toilet when your done.

[slow_yota]

Hmm..Question, Mine doesnt puff blue smoke but at start up it for like 10 secs it will blow white smoke..Is there a big difference ?

White smoke is coolant and in rare cases fuel.

Well..does this mean i have a BHG then..?
My car isnt overheating since the relay fix...
and it does only do it when i let the sit car for
a while and just right at first.

[Remy]

Hmm..Question, Mine doesnt puff blue smoke but at start up it for like 10 secs it will blow white smoke..Is there a big difference ?

White smoke is coolant and in rare cases fuel.

Well..does this mean i have a BHG then..?
My car isnt overheating since the relay fix...
and it does only do it when i let the sit car for
a while and just right at first.

Just keep an eye on your coolant, most likely it is from condensation.