90 Gt smokes bad !!!!

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dezel29

New Member

Nov 8, 2009

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Nov 8, 2009

#1

• Nov 8, 2009

• #1

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

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Nov 8, 2009

#2

• Nov 8, 2009

• #2

Either rings, or valve stem seals.

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

 

tannerc91gt

This last 25% is foreign territory at this point

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#3

• Nov 8, 2009

• #3

My vote is rings. Good luck

 

Blandnuts

I don't swallow; I only swoosh

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Aug 21, 2000

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FloorDuh

Nov 8, 2009

#4

• Nov 8, 2009

• #4

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

 

D

dezel29

New Member

Nov 8, 2009

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Nov 8, 2009

#5

• Nov 8, 2009

• #5

Blandnuts said:

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

Click to expand...

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

I don't swallow; I only swoosh

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Aug 21, 2000

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FloorDuh

Nov 8, 2009

#6

• Nov 8, 2009

• #6

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.

 

D

dezel29

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Nov 8, 2009

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Nov 8, 2009

#7

• Nov 8, 2009

• #7

Blandnuts said:

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.

Click to expand...

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

Active Member

Aug 31, 2003

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Nov 8, 2009

#8

• Nov 8, 2009

• #8

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 want to measure mine. It doesn't look that tall.

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Nov 9, 2009

#9

• Nov 9, 2009

• #9

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