Burning oil?

2001SilvrGT · January 14th, 2012, 09:54 PM

I got a 01 gt with 89k miles on it for some reason when i start my car it spits out a cloud of blue smoke an when i rev it it does it to (obv means im burning oil) i don't think it could be the piston rings because these motors go awhile before the rings going but could it be my valve seals or guides? causing to burn oil?

WickedSnake00 · January 14th, 2012, 09:57 PM

Valve stem seals can certainly cause excess oil consumption issues, and are especially noticable on startup.

mustanginky · January 14th, 2012, 10:00 PM

yep for valve seals, that's my guess anyways.

2001SilvrGT · January 14th, 2012, 10:01 PM

it only burns on start ups an light revs though...

WickedSnake00 · January 14th, 2012, 10:08 PM

Originally Posted by 2001SilvrGT

it only burns on start ups an light revs though...

Sounds consistent with valve stem seals. Their oil consumption is highest upon startup and idle.

Eagle2000GT · January 14th, 2012, 11:33 PM

My guess is valve seals. I bought a Harley that had been sitting a long time. It did exactly the same thing. It was the valve seals. Do you have a black oily film on the inside of your tail pipes?

LowFlyin99GT · January 15th, 2012, 10:53 PM

I have the same issue on high revs, and it is because my car sucks oil through the PCV system. When I did my intake swap, i freaked cause there was a pool of oil in the lower plenum. 4.6/5.4 have a higher crank case pressure than some other engines, so PCV health is real important! Cheap replacement PCV valves (ie;fram, parts store's house brands) have a flat peice of light weight metal for the plunger. They have a tendency of opening way too soon and get stuck sideways and that keeps them open all the time. I bought the motorcraft PCV, which has a heavier peice with a tapered nipple on the bottom that helps for alignment and seal when its closed. That helped 10 fold. Installing a catch can in the line fixed it completely. I got tired of draining it every couple of days and eliminated it, so i do get oil in on high revs now. Try the Motorcraft PCV, because it will help some. Being that you have oil smoke on start up, does indicate valve seal wear, but the PCV will help some.

WickedSnake00 · January 15th, 2012, 11:03 PM

Originally Posted by LowFlyin99GT

I have the same issue on high revs, and it is because my car sucks oil through the PCV system.

True but unlikely given his symptoms. PCV oil is a function of blowby pressure (piston rings), which means you'll get the most oil blowby at high RPM/load, and he's getting it right at start and low load, which sounds like stem seals.

Not to mention all he has to do is look in his intake to see if there's oil. If there is, PCV, if not, seals.

BTW, where in southern Indiana are you?

2001SilvrGT · January 15th, 2012, 11:06 PM

Originally Posted by Eagle2000GT

My guess is valve seals. I bought a Harley that had been sitting a long time. It did exactly the same thing. It was the valve seals. Do you have a black oily film on the inside of your tail pipes?

yea an i checked my oil today an its not black an it still at same level when i saw it last time

LowFlyin99GT · January 15th, 2012, 11:07 PM

Tell City sir

2001SilvrGT · January 15th, 2012, 11:08 PM

Originally Posted by WickedSnake00

True but unlikely given his symptoms. PCV oil is a function of blowby pressure (piston rings), which means you'll get the most oil blowby at high RPM/load, and he's getting it right at start and low load, which sounds like stem seals.

Not to mention all he has to do is look in his intake to see if there's oil. If there is, PCV, if not, seals.

BTW, where in southern Indiana are you?

how do i check the intake for oil?

WickedSnake00 · January 15th, 2012, 11:11 PM

Originally Posted by 2001SilvrGT

how do i check the intake for oil?

Take the intake off, pre-plenum. Look for oil in there coming from the lines that run to the valve covers. Alternatively take off the CCV lines that run from the valve covers to the intake and see if they're full of oil.

LowFlyin99GT · January 15th, 2012, 11:12 PM

Originally Posted by 2001SilvrGT

how do i check the intake for oil?

Pull the plenum off.

LowFlyin99GT · January 15th, 2012, 11:13 PM

Originally Posted by WickedSnake00

Take the intake off, pre-plenum. Look for oil in there coming from the lines that run to the valve covers. Alternatively take off the CCV lines that run from the valve covers to the intake and see if they're full of oil.

right on!

January 14th, 2012, 09:54 PM	#1
2001SilvrGT Regular 2001 Mustang GT Join Date: Aug 2011 Posts: 191 iTrader: 0 reviews	Burning oil? I got a 01 gt with 89k miles on it for some reason when i start my car it spits out a cloud of blue smoke an when i rev it it does it to (obv means im burning oil) i don't think it could be the piston rings because these motors go awhile before the rings going but could it be my valve seals or guides? causing to burn oil? __________________ BBK Shorty headers,O/R X pipe, Magnaflow Catback CAI Accufab 75mm throttle body C&L Plenum Tokico Lowering springs Trans go shift kit Soon:Comp Cams,SCT Tuner,3:73 Gears,MM Cast Chamber Plates

January 14th, 2012, 09:57 PM	#2
WickedSnake00 MM's king of Neon's 404 - car not found 17.81@87 Join Date: Aug 2010 Location: Diesel Engine Capital of the World, Columbus, IN Posts: 7,374 iTrader: 0 reviews	Valve stem seals can certainly cause excess oil consumption issues, and are especially noticable on startup. __________________ Official Secondhand Snake Build Thread Here Looks Like a Cobra, Sounds Like a Cobra, Tastes Like a Cobra, Not a Cobra. For Sale: P71 Interceptor motor

January 14th, 2012, 10:00 PM	#3
mustanginky MM Fanatic 2000 gt Join Date: Feb 2009 Location: La grange, KY Posts: 4,259 iTrader: 2 reviews	yep for valve seals, that's my guess anyways. __________________ Procharged 2000 5 Speed BAB GT, built motor, blower cams, speedy dyno tune 412 hp, 450 rw tq HARDCORE CREW BRIGHT ATLANTIC BLUE CREW #1 MEMBER

January 14th, 2012, 10:01 PM	#4
2001SilvrGT Regular 2001 Mustang GT Join Date: Aug 2011 Posts: 191 iTrader: 0 reviews	it only burns on start ups an light revs though... __________________ BBK Shorty headers,O/R X pipe, Magnaflow Catback CAI Accufab 75mm throttle body C&L Plenum Tokico Lowering springs Trans go shift kit Soon:Comp Cams,SCT Tuner,3:73 Gears,MM Cast Chamber Plates

January 14th, 2012, 11:33 PM	#6
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,311 iTrader: 1 reviews	My guess is valve seals. I bought a Harley that had been sitting a long time. It did exactly the same thing. It was the valve seals. Do you have a black oily film on the inside of your tail pipes? __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

January 15th, 2012, 10:53 PM	#7
LowFlyin99GT Newbie 1999 Mustang GT Join Date: Jan 2012 Location: Southern Indiana Posts: 23 iTrader: 0 reviews	I have the same issue on high revs, and it is because my car sucks oil through the PCV system. When I did my intake swap, i freaked cause there was a pool of oil in the lower plenum. 4.6/5.4 have a higher crank case pressure than some other engines, so PCV health is real important! Cheap replacement PCV valves (ie;fram, parts store's house brands) have a flat peice of light weight metal for the plunger. They have a tendency of opening way too soon and get stuck sideways and that keeps them open all the time. I bought the motorcraft PCV, which has a heavier peice with a tapered nipple on the bottom that helps for alignment and seal when its closed. That helped 10 fold. Installing a catch can in the line fixed it completely. I got tired of draining it every couple of days and eliminated it, so i do get oil in on high revs now. Try the Motorcraft PCV, because it will help some. Being that you have oil smoke on start up, does indicate valve seal wear, but the PCV will help some.

January 15th, 2012, 11:07 PM	#10
LowFlyin99GT Newbie 1999 Mustang GT Join Date: Jan 2012 Location: Southern Indiana Posts: 23 iTrader: 0 reviews	Tell City sir

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

Threads Similar to: Burning oil?
Thread	Thread Starter	Forum	Replies	Last Post
Burning out in the 6	02Sandstorm	V6 Mustangs	20	May 31st, 2011 02:38 PM
oil burning ?'s	93lx306dev	5.0 Mustangs	1	April 4th, 2009 10:03 PM
Burning oil	69fastback	Classic Mustangs	6	February 15th, 2009 10:46 AM
Fuel Problems Burning Rich / Burning Lean	Steves LX	5.0 Mustangs	5	March 21st, 2007 09:46 PM

All times are GMT -4. The time now is 03:00 PM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.