My car is smoking very bad

Gerald_Oliphant · 09-28-2007, 06:26 PM

I'm new to this site.

I have a Mitusbishi 3000GT and every time that I get an oil change, the car still smokes. It looks like grayish-blue smoke, and every time I push on the gas, it gets worse. I really love my car, but I don't know what to do. Please email me at

BattleCruiser · 09-28-2007, 06:44 PM

Hey, it sounds like the piston rings are shot. Does it use alot of oil? The piston rings are what seal the piston inside the cylinder, more then likely they are letting alot of oil blow by and get burned inside the combustion chamber. The only good way to fix it is an engine overhaul, how many miles are on the engine?

Gerald_Oliphant · 09-28-2007, 07:06 PM

100235

dautenhahn · 05-28-2008, 10:00 AM

can it still smoke like very very very bad , but have 180 compression in all cylinders from a bad oil ring?

TheEmperor · 05-28-2008, 10:40 AM

If the smoke is white it might be a head gasket, do you run through a lot of coolant or does the car run hot frequently? It might also be the pcv valve. My car was burning a lot of oil until I had that replaced and now it's all good.

BUDFAN8 · 05-28-2008, 05:29 PM

i think theemperor is on the right track with the pcv valve. if you take your old one off and shake it you should hear the ball in it moving. if you dont hear it replace it and let us know if it helps

Bud

**Raylo** · 05-29-2008, 04:18 AM

This thread is so old that if the car has been smoking that much for so long it probably has cancer! ;-)

Slimjd2001 · 06-05-2008, 05:47 AM

besides, it was the turbo chargers anyway.

Extralien · 06-10-2008, 05:04 PM

not to drag up an old thread ...but...

you're obviously burning oil. This can be a few things. From the top, you've got the valve stem seals, these wear out due to to the valves moving up and down all the time and they get heat damaged to and crack up.

Then you may have head and/or head gasket problems. A head or gasket may be damaged and leak oil into cylinders but not coolant.

And then, of course, as someone has said, oil rings on pistons.

Yes you can still have good compression yet burn oil. The oil rings are there to stop oil going up past the compression rings... they got those names for a reason :)

Syquus · 06-10-2008, 05:23 PM

Not only old piston rings. Valves could make oil to get into the chambers. To split the two possibilities: try to catch your blue smoke when THROTLING, and using engine brake. first is for valves. Second one to piston rings.

09-28-2007, 06:26 PM	#1 (permalink)
Gerald_Oliphant Registered User Join Date: Sep 2007 Posts: 2 OS: win98	My car is smoking very bad I'm new to this site. I have a Mitusbishi 3000GT and every time that I get an oil change, the car still smokes. It looks like grayish-blue smoke, and every time I push on the gas, it gets worse. I really love my car, but I don't know what to do. Please email me at Last edited by dai; 05-28-2008 at 01:31 PM. Reason: removed email before the spam bots pick it up

09-28-2007, 06:44 PM	#2 (permalink)
BattleCruiser Registered User Join Date: Sep 2007 Posts: 71 OS: Windows XP	Re: My car is smoking very bad Hey, it sounds like the piston rings are shot. Does it use alot of oil? The piston rings are what seal the piston inside the cylinder, more then likely they are letting alot of oil blow by and get burned inside the combustion chamber. The only good way to fix it is an engine overhaul, how many miles are on the engine? __________________ Main system: Dell Dimension E521, 4 gigs of ram, AMD Athlon 64 X2 dual core 5600+, Nvidia 7300LE 512mb, 250 gig HD. ASE Certified Honda Technician.

09-28-2007, 07:06 PM	#3 (permalink)
Gerald_Oliphant Registered User Join Date: Sep 2007 Posts: 2 OS: win98	Re: My car is smoking very bad 100235

05-28-2008, 10:00 AM	#4 (permalink)
dautenhahn Registered User Join Date: May 2008 Posts: 1 OS: xp	Re: My car is smoking very bad can it still smoke like very very very bad , but have 180 compression in all cylinders from a bad oil ring?

05-28-2008, 10:40 AM	#5 (permalink)
TheEmperor Registered User Join Date: Feb 2008 Posts: 39 OS: Windows XP SP2	Re: My car is smoking very bad If the smoke is white it might be a head gasket, do you run through a lot of coolant or does the car run hot frequently? It might also be the pcv valve. My car was burning a lot of oil until I had that replaced and now it's all good. __________________ For Technology Tips, Tricks, and Help check out Techemperor.com

05-28-2008, 05:29 PM	#6 (permalink)
BUDFAN8 Registered User Join Date: Apr 2007 Posts: 205 OS: XP	Re: My car is smoking very bad i think theemperor is on the right track with the pcv valve. if you take your old one off and shake it you should hear the ball in it moving. if you dont hear it replace it and let us know if it helps Bud

05-29-2008, 04:18 AM	#7 (permalink)
Raylo TSF Enthusiast Join Date: Feb 2006 Location: Maryland, USA Posts: 525 OS: XP Desktop, Vista HP Notebook, XP Notebook	Re: My car is smoking very bad This thread is so old that if the car has been smoking that much for so long it probably has cancer! ;-)

06-05-2008, 05:47 AM	#8 (permalink)
Slimjd2001 Registered User Join Date: Jun 2008 Posts: 10 OS: Vista Bussiness SP1 64Bit	Re: My car is smoking very bad besides, it was the turbo chargers anyway.

06-10-2008, 05:04 PM	#9 (permalink)
Extralien Registered User Join Date: Jun 2008 Posts: 32 OS: XP SP3	Re: My car is smoking very bad not to drag up an old thread ...but... you're obviously burning oil. This can be a few things. From the top, you've got the valve stem seals, these wear out due to to the valves moving up and down all the time and they get heat damaged to and crack up. Then you may have head and/or head gasket problems. A head or gasket may be damaged and leak oil into cylinders but not coolant. And then, of course, as someone has said, oil rings on pistons. Yes you can still have good compression yet burn oil. The oil rings are there to stop oil going up past the compression rings... they got those names for a reason :)

06-10-2008, 05:23 PM	#10 (permalink)
Syquus Registered User Join Date: Jun 2008 Posts: 1 OS: XP-080413-2111 (SP3)	Re: My car is smoking very bad Not only old piston rings. Valves could make oil to get into the chambers. To split the two possibilities: try to catch your blue smoke when THROTLING, and using engine brake. first is for valves. Second one to piston rings.