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Old 08 Oct 2008, 06:18 pm
jim L
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Default For Psychic Wednesday - odors & other phantasms

Since it is Wednesday, I predict someone has already answered this. It's
not causing any problems - i'm just curious.

94 civic EX - right after starting when cold, I often smell gas in cabin -
for maybe 10 sec or so. It doesn't happen on warm starts, or when driving.
Also can't detect it if hood is open. I don't see any signs or odors of
fuel under hood or under car. The check valve may be leaking a bit - since
engine starts quicker if I turn IG on for a sec or 2 before cranking, but
this should drain back to fuel tank, and not cause odor.

Another thing that may or may not be related. When I wind engine up
driving - before it is fully warmed up, i get a smell sortof like oil
burning off a manifold - no = smoke - just the smell. again - can't
duplicate when warmed up - & don't see anything under hood.

Checked PCV valve - it's working right. No exhaust leaks detected. Curious
as to why these smells are in cabin.


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Old 08 Oct 2008, 09:26 pm
Dillon Pyron
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Default Re: For Psychic Wednesday - odors & other phantasms

Thus spake "jim L" <jtl57@bellsouth.net> :

>Since it is Wednesday, I predict someone has already answered this. It's
>not causing any problems - i'm just curious.
>
>94 civic EX - right after starting when cold, I often smell gas in cabin -
>for maybe 10 sec or so. It doesn't happen on warm starts, or when driving.
>Also can't detect it if hood is open. I don't see any signs or odors of
>fuel under hood or under car. The check valve may be leaking a bit - since
>engine starts quicker if I turn IG on for a sec or 2 before cranking, but
>this should drain back to fuel tank, and not cause odor.
>
>Another thing that may or may not be related. When I wind engine up
>driving - before it is fully warmed up, i get a smell sortof like oil
>burning off a manifold - no = smoke - just the smell. again - can't
>duplicate when warmed up - & don't see anything under hood.
>
>Checked PCV valve - it's working right. No exhaust leaks detected. Curious
>as to why these smells are in cabin.
>


Running a little fat at cold idle, maybe?
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Old 09 Oct 2008, 10:31 am
e.meyer
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Default Re: For Psychic Wednesday - odors & other phantasms

On Oct 8, 6:18*pm, "jim L" <jt...@bellsouth.net> wrote:
> Since it is Wednesday, I predict someone has already answered this. *It's
> not causing any problems *- *i'm just curious.
>
> 94 civic *EX *- right after starting when cold, I often smell gas in cabin -
> for maybe 10 sec or so. *It doesn't happen on warm starts, or when driving.
> Also can't detect it if hood is open. *I don't see any signs or odors of
> fuel under hood or under car. *The check valve may be leaking a bit - since
> engine starts quicker if I turn IG on for a sec or 2 before cranking, *but
> this should drain back to fuel tank, and not cause odor.
>
> Another thing that may or may not be related. *When I wind engine up
> driving - before it is fully warmed up, i get a smell sortof like oil
> burning off a manifold *- *no = smoke - just the smell. again - can't
> duplicate when warmed up - & don't see anything under hood.
>
> Checked PCV valve - it's working right. *No exhaust leaks detected. *Curious
> as to why these smells are in cabin.


On a '94 the first thing I would check would be any crunchy old hoses
in the fuel system. I have experienced something like this with
failing hose around the filter and in the hose running from the end of
the lines to the engine on cars about this old.
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