For those with engine fumes in your interior if its not the trunk seal try a new hood to cowl seal...It worked for me. Only took five years or so to figure out...lolol....Better late then never I guess. I know my lungs thank me!
Solved!!!! Fumes in interior
- Thread starter ZooKypr
- Start date
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waggin
moving on ain't easy if you drive a Ford :p
shouldnt the fumes be going out the exhaust ??? Hmmm is there an exhaust leak under the hood that needs attention? just askin....
67Dart273
Well-Known Member
Since the SIDES of the hood ain't sealed............................................
I'd be looking at how your engine vent/ PCV system is hooked up. This is exactly why "we" got away from the old open breathers and plumbed them into the air filter bonnet.
I guess you could go back to a road draft tube................................
I'd be looking at how your engine vent/ PCV system is hooked up. This is exactly why "we" got away from the old open breathers and plumbed them into the air filter bonnet.
I guess you could go back to a road draft tube................................
No strange "cackling" noises as if exh. manifold is cracked or smoke from tail pipes. I do run a 600 Holley Double Pumper (float level is fine and I'm not dumping gas into the vent bowl), Eddy RPM Int. & big cam (515/525). I've probably had the odor for longer than 5 yrs maybe close to 8 to 10. The original hood/cowl seal was pretty flat and flimsy compared to the new one I intalled. Over the years I've had a couple of friends that know how to turn a wrench and they all comment had strong she runs. I probably can use some headers to let her breath better with all the top end work thats been done. Yesterday was a perfect day to test the new seal...temps. were 90 deg. & humid. Typically after a good 30 mile cruise I would have to wash my face and change my shirt to get rid of the odor and my throat would be dry....None of those issues yesterday.
"Quote 67DART273" I'd be looking at how your engine vent/ PCV system is hooked up. This is exactly why "we" got away from the old open breathers and plumbed them into the air filter bonnet. "
I do run an open air filter setup for the last 10yrs.
chryslerfat
Well-Known Member
Interesting because dad said he sold his for the same reason. He changed from headers and everything to put it back to stock but said he could not stop the smell in the car. I wish I was able to ask him if the seal was missing on his. Thanks for the info.
kt340sport
Well-Known Member
I have a friend , that once had a 69 mach 1 with a 390 4 speed, he tried for a few years , also same thing , changed trunk seal , pcv vented different ways , he either had to have all windows up or all down , he moved his exhaust tips, out farther away from the bumper , and this worked .They figure it was creating a vacuum and hauling exhaust up and in the side windows.But i find every time i take my dart out i smell of exhaust when i get home .
Sully1190
Look. It's a Gold Duster.
When you say trunk seal, you mean the rubber liner around the top where it opens and closes?
Robb
Well-Known Member
Mine only gets fumes with the windows down, so I don't think it is from the seals, but I will check the cowl now!
Yes
Mine was the same way...No a/c so summer cruisin was rough with the windows down.
For those who may install a new seal make sure you take note of which way the seal is facing so you correct a roper seal.
Sully1190
Look. It's a Gold Duster.
Well, I'll be damned. Maybe my fumes are about to clear up then. I know my seal around my trunk is about. I've got the things to replace it.
autoxcuda
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Yes, but the intake grille on top of the cowl is right behind that seal.
Without the seal, fumes go out and then get sucked back imediately into the fresh air vents and a/c air system under the dash.
My convertible had a fume problem for first two years of ownership when the top was up and any window was cracked open. I changed the trunk seal with no effect. I did find if the heater/vent fan was on, windows up; no fumes.
Here is what I discovered:
A low air pressure area develops in the car when a window is cracked open. This causes any exhaust gasses circulating in turbulence created by terminus of trunk lid to be sucked into the body shell; this is more prevalent with a rag top as trunk to passenger compartment is less segregated than a sedan. My car has duel pipes with 340 rectangular exhaust tips that dump their combustion products at the bottom of the rear bumper where they swirl around in a low pressure area at the end of the car, and don’t get forced into air stream as quickly as a stock stile down turned pipe would.
I discovered after replacing all the gaskets sealing the tail lights, and repairing a cracked lens that almost all exhaust fume entry to cockpit was stopped. One could tape over the vent holes located in lower trunk lid lip, and probably stop all fume entry. Another test would be to crawl into trunk, and have friend shine a light around all trunk lid’s contact area with body to locate any gaps, and seal those up.
If you are getting engine compartment fumes, gasoline, oily smell, etc, replace all the firewall gaskets.
All these correct original stile new gaskets are available from Detroit Muscle by the each, or in full sets.
Here is what I discovered:
A low air pressure area develops in the car when a window is cracked open. This causes any exhaust gasses circulating in turbulence created by terminus of trunk lid to be sucked into the body shell; this is more prevalent with a rag top as trunk to passenger compartment is less segregated than a sedan. My car has duel pipes with 340 rectangular exhaust tips that dump their combustion products at the bottom of the rear bumper where they swirl around in a low pressure area at the end of the car, and don’t get forced into air stream as quickly as a stock stile down turned pipe would.
I discovered after replacing all the gaskets sealing the tail lights, and repairing a cracked lens that almost all exhaust fume entry to cockpit was stopped. One could tape over the vent holes located in lower trunk lid lip, and probably stop all fume entry. Another test would be to crawl into trunk, and have friend shine a light around all trunk lid’s contact area with body to locate any gaps, and seal those up.
If you are getting engine compartment fumes, gasoline, oily smell, etc, replace all the firewall gaskets.
All these correct original stile new gaskets are available from Detroit Muscle by the each, or in full sets.
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