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. |
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? |
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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