Anyone have this problem

95 King GT · 07-31-2001, 03:11 AM

When its hot out side I can smell gas coming form my vent, it gets worse when I check under the hood (only when its a hot day) what does this mean

Dasykopath · 07-31-2001, 01:47 PM

Could it be running too rich ? Your A/C runs off vacuum, so if it's running rich and you're getting blow-by, the fumes will in turn go into the vacuum hoses and open the vents, and you could actually smell the gas.

Just my .02, again, I'm not for sure, so don't quote me on this.

------------------
88 GT Droptop. Not sure about the heads, stocks shaved mebbe. Intake, stock, think there's some work. Flowtech headers, off road h-pipe, flows, 3.55 FoMo., aluminum driveshaft, C-4 trans. w/ B&M shifter, Ram air, and more on the way.

84_GT350 · 08-01-2001, 03:10 AM

I had the same problem when running rich. I've got a carb and the smell was overpowering. After fixing a bad float the smell was gone.

------------------
1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

stng87 · 08-01-2001, 12:08 PM

another vote for the too rich theory.

------------------
1987 black with t-tops. Cobra intake, 1.7 cobra crane rollers, gt40p's, bbk shorties, off road h-pipe, Holley adj. fuel pressure regulator, Tremec t-5z, 65mm TB, 4.10's, adj cable, 155lph fuel pump, Ram clutch kit, 3 row motorsport radiator,
275-60-15 BFG TA's on Welds, Hurst shifter,Former AOD Semper Fi

jimberg · 08-01-2001, 12:14 PM

My guess is that the excess heat is causing the gasoline in the tank to vaporize and then is getting pushed up to the charcoal canister. I would check the vacuum line going from the charcoal canister to the intake for cracks or holes.

------------------
351W 89 Mustang GT Convertible

95 King GT · 08-02-2001, 01:15 AM

hey jimberg what is the charcoal canister

jimberg · 08-02-2001, 01:40 AM

It's the little black box toward the front just forward of the air pump. It's there to collect fuel vapor coming from the fuel tank and then release it into the intake to be burned.

------------------
351W 89 Mustang GT Convertible

07-31-2001, 03:11 AM	#1
95 King GT Registered Member Join Date: Jun 2001 Location: coweta OK USA Posts: 93	Anyone have this problem When its hot out side I can smell gas coming form my vent, it gets worse when I check under the hood (only when its a hot day) what does this mean

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
follow up to horrible vibration problem	Toeclicker	Windsor Power	4	12-18-2003 06:38 PM
1988 2.3 Conv Mustang problem with Fan????	Mustang 2.3 Conv	Small Ponies	0	05-20-2003 07:58 PM
Please help stutering problem	Just me	Windsor Power	10	10-18-2002 02:37 PM
surging problem?	speed_Freek170	Small Ponies	1	08-30-2001 11:58 AM
Surging Problem - Help	Lawless	Windsor Power	32	08-19-2001 10:57 PM

07-31-2001, 01:47 PM	#2
Dasykopath Registered Member Join Date: Feb 1999 Location: Spring, TX Posts: 6	Could it be running too rich ? Your A/C runs off vacuum, so if it's running rich and you're getting blow-by, the fumes will in turn go into the vacuum hoses and open the vents, and you could actually smell the gas. Just my .02, again, I'm not for sure, so don't quote me on this. ------------------ 88 GT Droptop. Not sure about the heads, stocks shaved mebbe. Intake, stock, think there's some work. Flowtech headers, off road h-pipe, flows, 3.55 FoMo., aluminum driveshaft, C-4 trans. w/ B&M shifter, Ram air, and more on the way.

08-01-2001, 03:10 AM	#3
84_GT350 Registered Member Join Date: Apr 1999 Location: Overland Park, KS, USA Posts: 1,631	I had the same problem when running rich. I've got a carb and the smell was overpowering. After fixing a bad float the smell was gone. ------------------ 1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s

08-01-2001, 12:08 PM	#4
stng87 Registered Member Join Date: Sep 2000 Location: southern california Posts: 329	another vote for the too rich theory. ------------------ 1987 black with t-tops. Cobra intake, 1.7 cobra crane rollers, gt40p's, bbk shorties, off road h-pipe, Holley adj. fuel pressure regulator, Tremec t-5z, 65mm TB, 4.10's, adj cable, 155lph fuel pump, Ram clutch kit, 3 row motorsport radiator, 275-60-15 BFG TA's on Welds, Hurst shifter,Former AOD Semper Fi

08-01-2001, 12:14 PM	#5
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	My guess is that the excess heat is causing the gasoline in the tank to vaporize and then is getting pushed up to the charcoal canister. I would check the vacuum line going from the charcoal canister to the intake for cracks or holes. ------------------ 351W 89 Mustang GT Convertible

08-02-2001, 01:15 AM	#6
95 King GT Registered Member Join Date: Jun 2001 Location: coweta OK USA Posts: 93	hey jimberg what is the charcoal canister

08-02-2001, 01:40 AM	#7
jimberg Registered Member Join Date: Oct 1998 Location: Rogers, MN Posts: 2,089	It's the little black box toward the front just forward of the air pump. It's there to collect fuel vapor coming from the fuel tank and then release it into the intake to be burned. ------------------ 351W 89 Mustang GT Convertible