Fuel Smell??

[Marauderjack]

Can anyone tell me where to start looking since I have a very faint fuel odor that is only noticed with the AC on at a stoplight!!:confused:

When I pull into the garage and shut it down the smell is there again as the engine cools off!!:argue:

No apparent stains around injectors or fuel rails but it's really faint!!:shake:

Suggestions??:confused:

[fastblackmerc]

Can anyone tell me where to start looking since I have a very faint fuel odor that is only noticed with the AC on at a stoplight!!:confused:

When I pull into the garage and shut it down the smell is there again as the engine cools off!!:argue:

No apparent stains around injectors or fuel rails but it's really faint!!:shake:

Suggestions??:confused:
Check the Fuel pressure regulator.

[Marauderjack]

I pulled the vacuum line off and no fuel came out....is there any other way to check it Jim or should I just replace it??:confused:

[fastblackmerc]

I pulled the vacuum line off and no fuel came out....is there any other way to check it Jim or should I just replace it??:confused:

No fuel then I'd just leave it.

[Marauderjack]

Any other ideas??:confused:

[Zack]

Any other ideas??:confused:

By process of deduction, It can only be:
-fuel injector o-ring
-soft line connecting both rails
-DPFE sensor or the hoses attached to it.

[Marauderjack]

I had one injector leak a little when I installed the ProCharger and it was obvious from the staining.......

I've looked at all connections and see no evidence so I guess fuel rails are next??:confused:

[Zack]

I had one injector leak a little when I installed the ProCharger and it was obvious from the staining.......

I've looked at all connections and see no evidence so I guess fuel rails are next??:confused:

The DFPE and hose carries vapor from the tank....brah

[Marauderjack]

The DFPE and hose carries vapor from the tank....brah

Thanks Zack....I will definitely check that......brah!!:beer:;)

[Marauderjack]

No cracked DPFE hoses and no apparent leaks!!:shake:

What next??:confused:

[Zack]

No cracked DPFE hoses and no apparent leaks!!:shake:

What next??:confused:

Check the vacuum line behind the throttle body for cracks (the rubber part). It delivers vapor from the DFPE to the manifold

[Marauderjack]

Thanks again Zack.....I'll check that today!!:beer:

[Marauderjack]

Took the line off the TB and blew into it.....NO LEAKS.....NOW WHAT!!??:(

Has to be a small crack in a flexible line I guess??:confused:

[Paul]

The evaporative fuel line connections are sealed by oring - it is possible you have one or more oring failures. Maybe. I don't know for sure, but its an idea.

The hard plastic line on passenger side connects a metal line from the rear of the car to the DPFE sensor/valve, and has an oring at each connection. Then another hard plastic line connects the sensor/valve to the throttle body (the one you blew in, I think). It has an oring at the sensor/valve connection. I don't know the sizes of the orings, maybe a little gasket sealant added to the connection/oring would do the trick?

Or maybe the DPFE sensor/valve is failing/cracked somehow?

[Marauderjack]

Thanks Paul!! :beer:

Wonder how ya go about checin' them......with a match??!!:confused::eek: