90 Gt smokes bad !!!!

[dezel29]

just got the car and smokes terrible...bluish smoke and u get on it and u leave a cloud...motor is super strong though. the previous owner said they replaced the valve stem seals...

just did compression test...all cylinders between 180-210...


wats the problem ? valve stem seals ??

thanks fellas

 

[Mustang5L5]

Either rings, or valve stem seals.

Compression test numbers can be misleading since big oil leaks can help seal everything up well.

 

[tannerc91gt]

My vote is rings. Good luck

 

[Blandnuts]

Smokes on start up after the car was recently ran?
Smokes only when loaded/wot?
How is the crankcase ventilated?

A leak down test will supply better information than a compression test.

Fred

 

[dezel29]

Smokes on start up after the car was recently ran?
Smokes only when loaded/wot?
How is the crankcase ventilated?

A leak down test will supply better information than a compression test.

Fred

smokes just a lil when idle, and driving...when u stomp it then it smokes bad...the crankcase is only vented thru the pcv...though there isnt any smoke from the dipstick, and i have seen that on other vehicles when the rings are bad. for 30$ i can put new valve stem seals on it so i will do that next...the motor is very strong...just doesnt feel like it is the rings...gut feeling or wishfull dreaming...lol

 

[Blandnuts]

There's a really good thread if you search. It's called something like, "oil consumption". I would diagnose the problem before throwing parts at it. Seems like the owner before already went that route.

 

[dezel29]

There's a really good thread if you search. It's called something like, "oil consumption". I would diagnose the problem before throwing parts at it. Seems like the owner before already went that route.

well to be honest i dont have the time or money not to mention the place to do a engine rebuild...i can have the motor out and back in the car in under 24 hours...done it with my last GT...but i had the time and place to do it...i am hoping and praying it is just valve stem seals...

the smoke is so heavy when i WOT...white and blue and lil black from the car needing a tune up...it pretty much smokes all the time though...when i let off the throttle to shift it blows a bit of smoke too...but just driving i dont see anything unless i get on it....

 

[earleys94gt]

Make sure the intake bolts are tight.

A buddy of mine had a similar issue and turns out he had some intake bolts lose after his head swap.

Good luck.

 

[stykthyn]

I got the same problem, but my engine has 250k miles on it, so I am betting the rings are toasted.