2002 GT high mileage Help

02gt158 · January 17th, 2012, 03:56 AM

Hello all I own a 2002 GT that currently has 125,000 miles on it, when I let it idle for a while and give it some gas a little bit of white smoke comes out of the exhaust, i just replaced the valve stem seals and it is still doing it, any thoughts on what it might be?

Also if I were to get this engine rebuilt and wanted to add a supercharger on to it what all would i have to do to the internals to make sure i could get a good boost on it?

stal94gt · January 17th, 2012, 04:50 AM

its common during the winter to have white smoke come out of the exhaust. my car dumps out a ton of white smoke

SSG Pate · January 17th, 2012, 07:15 AM

in order to get GOOD boost you would need to replace your internals, if you wanted to stay under 10PSI you wont need to do anything except get a good tune after your supercharger install. the safety of your car boils down to your tune.

Eagle2000GT · January 17th, 2012, 08:43 AM

Condensation. This time of year water drips out of my exhaust when I first start the car.

Froush · January 17th, 2012, 09:50 AM

If you want boost and are already rebuilding it you should look into lowering the compression a little bit.

stal94gt · January 17th, 2012, 10:00 AM

Originally Posted by dbowen2007

If you want boost and are already rebuilding it you should look into lowering the compression a little bit.

Stock slugs are 17cc dish which is fine for fi. Most I would lower it would be 18cc dish

95mustangGT/SVT · January 17th, 2012, 07:14 PM

Is that the only way that you get white smoke? Does it smell like oil? If so it's 99% a ring on a piston going bad and you need to rebuild the bottom end. I would not out any boost to a motor like that!

GP-SE · January 17th, 2012, 08:21 PM

what colour is the smoke? in the winter my car smokes like crazy, but it's white/grey which is normal.
Blue=Oil
White=Coolant
Black=Rich

Eagle2000GT · January 17th, 2012, 09:05 PM

Originally Posted by 95mustangGT/SVT

Is that the only way that you get white smoke? Does it smell like oil? If so it's 99% a ring on a piston going bad and you need to rebuild the bottom end. I would not out any boost to a motor like that!

No. White smoke doesn't smell like oil. If you are burning oil then you will get a bluish colored smoke and oil residue in your tail pipe. I don't have a lot of experience rebuilding engines, but the times that I've seen bluish smoke on an otherwise good running motor, it was valve seals.

mrbigjeep · January 17th, 2012, 10:05 PM

white smoke can smell like oil. my girlfriends car blows white smoke on start up and its definitely oil...does it in any climate.

Eagle2000GT · January 17th, 2012, 10:16 PM

Interesting. Mine just smokes and drips water on the ground. No smell at all. Do you think its the valve seals or rings?

Nitmare67 · January 17th, 2012, 10:59 PM

I run 12lbs on a 148k mile motor. No problems for 25k miles now. Before that I ran about 20 bottles of nitrous through it at 125hp and 150hp settings. Keep the power under 450rwhp, dont miss any shifts. Will last along time. Usually.

02gt158 · January 17th, 2012, 11:27 PM

Thanks for all the answers, It does not smoke while driving nor on start up but when idling for several minutes and give the gas a punch it will puff out, looks to me like white smoke and smells like shit. but the motor runs great? its just embarrassing when i take off from a light and dump smoke on that car behind me..

January 17th, 2012, 03:56 AM	#1
02gt158 Newbie Join Date: Jan 2012 Posts: 2 iTrader: 0 reviews	2002 GT high mileage Help Hello all I own a 2002 GT that currently has 125,000 miles on it, when I let it idle for a while and give it some gas a little bit of white smoke comes out of the exhaust, i just replaced the valve stem seals and it is still doing it, any thoughts on what it might be? Also if I were to get this engine rebuilt and wanted to add a supercharger on to it what all would i have to do to the internals to make sure i could get a good boost on it?

January 17th, 2012, 04:50 AM	#2
stal94gt I Post Entirely Way Too Much 2003 mustang v6 ;) slow Join Date: May 2010 Location: eglin afb florida Posts: 10,197 iTrader: 2 reviews	its common during the winter to have white smoke come out of the exhaust. my car dumps out a ton of white smoke __________________ bone stock from the factory!

January 17th, 2012, 07:15 AM	#3
SSG Pate Premium Member 00 Mustang GT Vert/88 5.0 Join Date: Sep 2010 Location: Tennessee Posts: 1,766 iTrader: 3 reviews	in order to get GOOD boost you would need to replace your internals, if you wanted to stay under 10PSI you wont need to do anything except get a good tune after your supercharger install. the safety of your car boils down to your tune. __________________ Proud Iraq and Afghanistan War veteran Powered By MMR 4.75L Stroker, Tuned at Kurgan Motorsports

January 17th, 2012, 08:43 AM	#4
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	Condensation. This time of year water drips out of my exhaust when I first start the car. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

January 17th, 2012, 09:50 AM	#5
Froush Enthusiast 2002 Mustang launch soft, shift slow, stay slow Join Date: May 2011 Location: Newport News, VA Posts: 730 iTrader: 4 reviews	If you want boost and are already rebuilding it you should look into lowering the compression a little bit. __________________ "Happiness is being blown and stroked at the same time" V6 => vt 302 forged stroker My Build Thread click link http://www.moddedmustangs.com/forums...shs-build.html

January 17th, 2012, 07:14 PM	#7
95mustangGT/SVT Enthusiast 2001 Gt Join Date: Aug 2010 Location: PA Posts: 915 iTrader: 0 reviews	Is that the only way that you get white smoke? Does it smell like oil? If so it's 99% a ring on a piston going bad and you need to rebuild the bottom end. I would not out any boost to a motor like that!

January 17th, 2012, 08:21 PM	#8
GP-SE Regular 2002 Mustang GT Join Date: Aug 2010 Location: Richmond Hill, Ontario Posts: 343 iTrader: 0 reviews	what colour is the smoke? in the winter my car smokes like crazy, but it's white/grey which is normal. Blue=Oil White=Coolant Black=Rich

January 17th, 2012, 10:05 PM	#10
mrbigjeep I Post Entirely Way Too Much 04 mustang gt 7.21 @ 98 Join Date: Apr 2008 Location: upstate sc Posts: 5,923 iTrader: 1 reviews	white smoke can smell like oil. my girlfriends car blows white smoke on start up and its definitely oil...does it in any climate. __________________ cams + 150 shot

January 17th, 2012, 10:16 PM	#11
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	Interesting. Mine just smokes and drips water on the ground. No smell at all. Do you think its the valve seals or rings? __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

January 17th, 2012, 10:59 PM	#12
Nitmare67 Hardcore Enthusiast Join Date: Feb 2010 Posts: 1,391 iTrader: 0 reviews	I run 12lbs on a 148k mile motor. No problems for 25k miles now. Before that I ran about 20 bottles of nitrous through it at 125hp and 150hp settings. Keep the power under 450rwhp, dont miss any shifts. Will last along time. Usually. __________________ 99 Mustang GT 446rwhp, Vortech Aftercooled, Killer Chiller @12lbs, HPX, 3.73s, MGW, Battery Relocation, Intercooler Tank Relocated, CF DF clutch, Steeda Quick Release Quadrant, 75mm TB, Ported C&L Plenum, Stock PI Cams Advance 4 degrees, Pro Chamber

January 17th, 2012, 11:27 PM	#13
02gt158 Newbie Join Date: Jan 2012 Posts: 2 iTrader: 0 reviews	Thanks for all the answers, It does not smoke while driving nor on start up but when idling for several minutes and give the gas a punch it will puff out, looks to me like white smoke and smells like shit. but the motor runs great? its just embarrassing when i take off from a light and dump smoke on that car behind me..

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