smoking when mach is turned on - 2003-04 Mach 1 Registry Owners Club

Machuban1 · 08-08-2008, 02:16 PM

the other day i was at a restaurant and when i left i turned my car on with the door open and a cloud of smoke out of nowhere came out of my exhaust! at first i thought it was my cousin smoking a ciggarette but it was just too much smoke and thats when i realized it was my car.

any idea what it was??? this is the only time its done it. and it was a lot of smoke. i had to close the door .....

The AntiRice · 08-08-2008, 02:27 PM

does it only smoke when you first start it or does it keep doing it the whole time the car is running?

B's Azure · 08-08-2008, 02:31 PM

What color of smoke? I installed a home made catch can between my pcv and intake and it cleared up a smoke on start up issue I had. It was put on about 10,000 miles ago and no smoke on start up so far. You just have to remember to epmty it.

Bill Hamilton · 08-08-2008, 02:41 PM

Maybe raw fuel that was burning or vaporized as you turned off your car because of revving or gunning the motor right prior to getting into the parking place. The converters will burn hot enough to ignite unburned fuel once you turn ignition off. I had a car one time that would blow out a perfect smoke ring if you revved the motor and turned off the key. It looked and sounded really cool when it backfired the smoke ring out the tailpipe but I now realize I wasn’t doing the engine any favor back then (LOL).

Machuban1 · 08-08-2008, 02:47 PM

Quote:

Originally Posted by Bill Hamilton

Maybe raw fuel that was burning or vaporized as you turned off your car because of revving or gunning the motor right prior to getting into the parking place. The converters will burn hot enough to ignite unburned fuel once you turn ignition off. I had a car one time that would blow out a perfect smoke ring if you revved the motor and turned off the key. It looked and sounded really cool when it backfired the smoke ring out the tailpipe but I now realize I wasn’t doing the engine any favor back then (LOL).

you know what. before i parked my car i did do a fishtale up the parking structure hahahahah so maybe thats what it is. it hasnt done it since that day or before. the smoke had like a blueish tint to it.

96frankenstang · 08-08-2008, 04:36 PM

a blueish tint is normaly oil, but if it hasnt done it since then, i dont think it would be your valve seals or anything like that.

jdoug · 08-19-2008, 10:03 PM

I agree with B's Azure that a catch can will help if it happens again. Mine did it maybe 1-2 times a month but it hasn't happened at all since I put on the catch can. It's just an oil separator for an air compressor that you stick inline between the head and intake.

Mrfomoco · 08-20-2008, 11:57 AM

Where exactly does that attatch to? And thats 3/8" fuel line?

jdoug · 08-21-2008, 09:04 AM

There's a stock hard line running from the driver's side head back into the side of the intake manifold. You just remove that and replace it with some sturdy 3/8" line and some fittings to connect the oil separator. There's a few threads on here about it if you search "oil separator" or something like that. Just make sure you use some beefy line or it will collapse under vacuum.

Here's one:
http://www.mach1registry.org/forums/...ad.php?t=36676

bluoval · 08-21-2008, 09:47 AM

Check out this thread below!

http://www.mach1registry.org/forums/...=exhaust+smoke

Mrfomoco · 08-21-2008, 11:16 AM

awesome thanks! I'll check that out.

08-08-2008, 02:16 PM	#1
Machuban1 Registered User Join Date: Nov 2006 Location: El Segundo, CA Posts: 179	smoking when mach is turned on the other day i was at a restaurant and when i left i turned my car on with the door open and a cloud of smoke out of nowhere came out of my exhaust! at first i thought it was my cousin smoking a ciggarette but it was just too much smoke and thats when i realized it was my car. any idea what it was??? this is the only time its done it. and it was a lot of smoke. i had to close the door .....

08-08-2008, 02:27 PM	#2
The AntiRice Registered User Join Date: May 2008 Location: Ft. Lewis, WA Posts: 478	Re: smoking when mach is turned on does it only smoke when you first start it or does it keep doing it the whole time the car is running? __________________ Build Thread http://www.svtperformance.com/forums...read-pics.html

08-08-2008, 02:31 PM	#3
B's Azure Registered User Join Date: Nov 2004 Location: Vacaville, CA Posts: 500	Re: smoking when mach is turned on What color of smoke? I installed a home made catch can between my pcv and intake and it cleared up a smoke on start up issue I had. It was put on about 10,000 miles ago and no smoke on start up so far. You just have to remember to epmty it. __________________ First mod: chrome valve stems and caps, 'cuz they look pimp!

08-08-2008, 02:41 PM	#4
Bill Hamilton Mustang owner since 1970 Join Date: Aug 2003 Location: Charleston,SC Posts: 6,248	Re: smoking when mach is turned on Maybe raw fuel that was burning or vaporized as you turned off your car because of revving or gunning the motor right prior to getting into the parking place. The converters will burn hot enough to ignite unburned fuel once you turn ignition off. I had a car one time that would blow out a perfect smoke ring if you revved the motor and turned off the key. It looked and sounded really cool when it backfired the smoke ring out the tailpipe but I now realize I wasn’t doing the engine any favor back then (LOL). __________________ Bill SUPPORTING MEMBER USAF Retired My 1970 Mach 2003 Ford Mustang Mach I---Black w/5-speed --- gone but not forgotten 2011 Shelby GT-500 --- Ingot Silver Metallic and 6-speed (Sold and Now Terrorizing the residents of New Zealand) 1970 Ford Mustang Mach 1---White w/351C-4v Shaker Hood scoop and T-5 tranny 2014 Shelby GT-500 --- White/red stripes and 6-speed 2019 Mustang Convertible Premium Package w/automatic ___________________

08-08-2008, 04:36 PM	#6
96frankenstang USN SeaBee Join Date: Feb 2007 Location: Port Hueneme, CA Posts: 138	Re: smoking when mach is turned on a blueish tint is normaly oil, but if it hasnt done it since then, i dont think it would be your valve seals or anything like that. __________________ 2004 Dodge Ram 3500 Cummins 2003 Oxford White Mach 1 USN SeaBee's "We Build, We Fight" NMCB 5.

08-19-2008, 10:03 PM	#7
jdoug Regular Guy Join Date: Aug 2005 Location: SoFla Posts: 329	Re: smoking when mach is turned on I agree with B's Azure that a catch can will help if it happens again. Mine did it maybe 1-2 times a month but it hasn't happened at all since I put on the catch can. It's just an oil separator for an air compressor that you stick inline between the head and intake. Attached Thumbnails __________________ J Doug

08-20-2008, 11:57 AM	#8
Mrfomoco Registered User Join Date: Feb 2007 Location: The Woodlands, TX Posts: 229	Re: smoking when mach is turned on Where exactly does that attatch to? And thats 3/8" fuel line?

08-21-2008, 09:04 AM	#9
jdoug Regular Guy Join Date: Aug 2005 Location: SoFla Posts: 329	Re: smoking when mach is turned on There's a stock hard line running from the driver's side head back into the side of the intake manifold. You just remove that and replace it with some sturdy 3/8" line and some fittings to connect the oil separator. There's a few threads on here about it if you search "oil separator" or something like that. Just make sure you use some beefy line or it will collapse under vacuum. Here's one: http://www.mach1registry.org/forums/...ad.php?t=36676 __________________ J Doug

08-21-2008, 09:47 AM	#10
bluoval Registered User Join Date: May 2006 Location: Peoria, IL Posts: 1,101	Re: smoking when mach is turned on Check out this thread below! http://www.mach1registry.org/forums/...=exhaust+smoke

08-21-2008, 11:16 AM	#11
Mrfomoco Registered User Join Date: Feb 2007 Location: The Woodlands, TX Posts: 229	Re: smoking when mach is turned on awesome thanks! I'll check that out.

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