strong exhaust smell in car

brimmer555 · November 9th, 2010, 12:11 PM

when the car is running it smells like it's running rich and I am not using dumps on my 89 GT.

I have been thinkin maybe I have an exhaust leak for somethin. what's your opinion?

zinc-vert02 · November 9th, 2010, 12:15 PM

dumps will do that, my fox had dumps and did the same thing

PureEnergi · November 9th, 2010, 01:13 PM

rich as in fuel smell? if so replace your fpr. mine was bad and it stunk like fuel to the point i was looking for fuel leaks.

lolStang · November 9th, 2010, 01:19 PM

i have the same problem actualy

and this is a noob question but... whats an fpr?

fuel pressure return or something?

69fastback · November 9th, 2010, 01:25 PM

Did it just start all of a sudden, or has it always been like that?

PureEnergi · November 9th, 2010, 01:43 PM

regulator. passenger side in the back on the fuel rail. mine stunk bad i replaced the reg and all was well.
pop ya hood off and shorty allen wrench. sucked for about 20 mins but, i wasnt interested in pulling my intake like i was told.

StangBanger302 · November 9th, 2010, 02:24 PM

Originally Posted by lolStang

i have the same problem actualy

and this is a noob question but... whats an fpr?

fuel pressure return or something?

Fuel pressure regulator. You can turn it with an allen key and it adjust the PSI of your fuel.

nolife · November 9th, 2010, 03:08 PM

Originally Posted by brimmer555

when the car is running it smells like it's running rich and I am not using dumps on my 89 GT.

I have been thinkin maybe I have an exhaust leak for somethin. what's your opinion?

I would look for a leak first. Even if running a little rich, it shouldn't make it back into the car. Does it make a difference in amount of smell if your vent is blowing air or in the off position?

Originally Posted by StangBanger302

Fuel pressure regulator. You can turn it with an allen key and it adjust the PSI of your fuel.

With an adjustable aftermarket one, the stock one and OEM replacements are non adjustable.

brimmer555 · November 9th, 2010, 05:01 PM

[QUOTE=nolife;3290508]I would look for a leak first. Even if running a little rich, it shouldn't make it back into the car. Does it make a difference in amount of smell if your vent is blowing air or in the off position?

I haven't noticed any differance with the air on.

I just bought the car about 2weeks ago, and it's been doing it since thin.

Yes it has a rick fuel exhuast smell. I think I only smell it when my window is down.

do I really have to take off the hood to get to the FPR?

FastStang91Lx · November 9th, 2010, 05:10 PM

No, you don't have to take the hood off.

WhiteMamba · November 9th, 2010, 05:25 PM

U need to seal ANY hole in the firewall with tape (or silicone) and then seal where the fresh air gets drawn in from under the wipers...seal it from the firewall side...i just did all this and it made a huge difference.

95tbirdv8 · November 9th, 2010, 05:26 PM

Might be the headers or collectors.

ajr1230 · November 9th, 2010, 06:50 PM

Originally Posted by 95tbirdv8

Might be the headers or collectors.

x2 on that check out your gaskets on the headers........ also check for tiny holes or a gap in the flanges....

brimmer555 · November 9th, 2010, 07:20 PM

Originally Posted by WhiteMamba

U need to seal ANY hole in the firewall with tape (or silicone) and then seal where the fresh air gets drawn in from under the wipers...seal it from the firewall side...i just did all this and it made a huge difference.

No I haven't sealed any of the wholes but then again I don't really notice it with the windows up.

Maybe i'lll just buy a set of headers an not tell the wife hehehe ssshhhhh

FastStang91Lx · November 9th, 2010, 07:25 PM

Originally Posted by brimmer555

No I haven't sealed any of the wholes but then again I don't really notice it with the windows up.

Maybe i'lll just buy a set of headers an not tell the wife hehehe ssshhhhh

For 50 bucks I won't say a word.

95tbirdv8 · November 9th, 2010, 07:27 PM

Check the header gaskets first and the collectors

03blackmach1 · November 9th, 2010, 07:35 PM

Do you have cats on the car?

brimmer555 · November 9th, 2010, 07:45 PM

Originally Posted by 03blackmach1

Do you have cats on the car?

yes I have cats. if you look at my garage on here there is a pic of them, that I took while I had the car on the lift.

I was thinking about these headers what do you guys think

BBK 1-5/8 UNEQUAL LENGTH SHORTY HEADERS CERAMIC COATED 5.0L 1986-1993 - CJ Pony Parts, Inc.

nolife · November 9th, 2010, 08:25 PM

Originally Posted by brimmer555

yes I have cats. if you look at my garage on here there is a pic of them, that I took while I had the car on the lift.

I was thinking about these headers what do you guys think

BBK 1-5/8 UNEQUAL LENGTH SHORTY HEADERS CERAMIC COATED 5.0L 1986-1993 - CJ Pony Parts, Inc.

I have a similar set of equal BBK coated shorties. They have been on for probably 8 years with no problems or leaks and still look decent. I'd double check your existing headers for leaks before swapping parts unless you want them anyway.

brimmer555 · November 9th, 2010, 09:57 PM

Originally Posted by nolife

I have a similar set of equal BBK coated shorties. They have been on for probably 8 years with no problems or leaks and still look decent. I'd double check your existing headers for leaks before swapping parts unless you want them anyway.

I want them lol. I'll just have to get gaskets and bolts for them because I don't think they come with the hardware.

November 9th, 2010, 12:11 PM	#1
brimmer555 Regular 1989 Mustang GT Tell ya next year Join Date: Jul 2009 Location: Carlisle, PA Posts: 437 iTrader: 0 reviews	strong exhaust smell in car when the car is running it smells like it's running rich and I am not using dumps on my 89 GT. I have been thinkin maybe I have an exhaust leak for somethin. what's your opinion?

November 9th, 2010, 12:15 PM	#2
zinc-vert02 Bringing Yellow Back 2002 mustang gt 12.2 at 117 Join Date: Apr 2010 Location: WISCONSIN Posts: 9,965 iTrader: 1 reviews	dumps will do that, my fox had dumps and did the same thing __________________ SOON TO BE 5.4 3V POWERD WITH A ROUSH CHARGER HELPING IT BAMA Performance Drag Team Member #4

November 9th, 2010, 01:13 PM	#3
PureEnergi Regular 1988 Mustang GT 13.5@102 Join Date: Sep 2010 Location: Vermont Posts: 68 iTrader: 0 reviews	rich rich as in fuel smell? if so replace your fpr. mine was bad and it stunk like fuel to the point i was looking for fuel leaks.

November 9th, 2010, 01:25 PM	#5
69fastback Premium Member 1969 Mustang Mach 1 6.824@101.61 Join Date: Aug 2006 Location: Oklahoma jackass, get to driving Posts: 5,565 iTrader: 0 reviews	Did it just start all of a sudden, or has it always been like that? __________________ ./___ _ ____ ___ \. ( ]]] _ _ O _ _ [[[ ) \_ o _ _____ _ o _/ \|___\| ......... \|___\| http://www.youtube.com/watch?v=HyYU3...e_gdata_player

November 9th, 2010, 05:10 PM	#10
FastStang91Lx I Post Entirely Way Too Much 1991 Mustang LX 5.0 Join Date: Jan 2010 Location: Minnesota Posts: 5,572 iTrader: 2 reviews	No, you don't have to take the hood off. __________________ Point made in less than a few hours with minimal response. http://www.moddedmustangs.com/forums...ml#post4465184

November 9th, 2010, 01:19 PM	#4
lolStang Enthusiast 2000 Mustang GT Join Date: Sep 2010 Location: Ghettos of Boca Raton Posts: 556 iTrader: 1 reviews	i have the same problem actualy and this is a noob question but... whats an fpr? fuel pressure return or something?

November 9th, 2010, 01:43 PM	#6
PureEnergi Regular 1988 Mustang GT 13.5@102 Join Date: Sep 2010 Location: Vermont Posts: 68 iTrader: 0 reviews	regulator. passenger side in the back on the fuel rail. mine stunk bad i replaced the reg and all was well. pop ya hood off and shorty allen wrench. sucked for about 20 mins but, i wasnt interested in pulling my intake like i was told.

November 9th, 2010, 05:01 PM	#9
brimmer555 Regular 1989 Mustang GT Tell ya next year Join Date: Jul 2009 Location: Carlisle, PA Posts: 437 iTrader: 0 reviews	[QUOTE=nolife;3290508]I would look for a leak first. Even if running a little rich, it shouldn't make it back into the car. Does it make a difference in amount of smell if your vent is blowing air or in the off position? I haven't noticed any differance with the air on. I just bought the car about 2weeks ago, and it's been doing it since thin. Yes it has a rick fuel exhuast smell. I think I only smell it when my window is down. do I really have to take off the hood to get to the FPR?

November 9th, 2010, 05:25 PM	#11
WhiteMamba Regular 88 Notch Join Date: Aug 2010 Location: Saint Charles IL Posts: 431 iTrader: 0 reviews	U need to seal ANY hole in the firewall with tape (or silicone) and then seal where the fresh air gets drawn in from under the wipers...seal it from the firewall side...i just did all this and it made a huge difference. __________________ 88 Notchy 306 with 70mm Turbo 510 RWHP on 10lbs K thnx Can we chat?

November 9th, 2010, 05:26 PM	#12
95tbirdv8 Enthusiast 1990 mustang gt Join Date: May 2010 Location: houston, tx Posts: 627 iTrader: 0 reviews	Might be the headers or collectors. __________________ Burning Rubber in the 5.0 http://www.youtube.com/watch?v=mKGSmRkKQcM95 95 mark8 lsc 95 tbird v8 90 mustang gt 07 silverado v8 08 yamaha r6 to be continued........ foxbodyperformance.com is the way to go

November 9th, 2010, 07:27 PM	#16
95tbirdv8 Enthusiast 1990 mustang gt Join Date: May 2010 Location: houston, tx Posts: 627 iTrader: 0 reviews	Check the header gaskets first and the collectors __________________ Burning Rubber in the 5.0 http://www.youtube.com/watch?v=mKGSmRkKQcM95 95 mark8 lsc 95 tbird v8 90 mustang gt 07 silverado v8 08 yamaha r6 to be continued........ foxbodyperformance.com is the way to go

November 9th, 2010, 07:35 PM	#17
03blackmach1 Regular 2003 mustang mach 1 Join Date: Sep 2010 Location: pei Posts: 178 iTrader: 0 reviews	Do you have cats on the car?

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