raw fuel smell

[BWalczak]

I know from my boat experience (and reading my owners manual) that allowing my truck to idle will cool the cylinders and keep all the fuel from igniting. The question is this. 45 degree day, driving the truck at highway speeds come to a stop light and within seconds I can smell raw fuel in the cabin. Is this something that will go away in time? Truck has 800 miles on it.

Thanks for your input.

 

[bmoeller]

Sounds like an external leak to me. Are there any wet areas around any of the fuel lines or fittings? Maybe they didn't somthing tight enough whenit was built.

 

[dalton4]

I agree with Moeller concerning leaking/seeping fuel. I was getting the same odor and found cause to be a loose line fitting at lift pump following a warranty pump replacement. Let the engine idle for awhile and check for fuel drops or wet lines, etc. .



Jerry

 

[Prairie Dog]

I had a similar problem but I found that switching to an all bean burrito diet helped.

 

[Task125]

I don't smell fuel,I smell oil when i stop at a light after driving for a while. Mike

 

[EOwen]

I have a similar problem that is a fuel leak and I will posting a seperate post. I have traced it to my rear injector.

Fuel is running down the back of my block and inside my bell

housing and dripping out. I am taking it to the dealer today.

Eric

 

[BWalczak]

Update. I stopped by the dealer today to ask about the strong fuel odor. The service writer said it is very common and they hear it all the time. Hook up to a heavy tow and drive 500 miles or so and it will go away. Valve guide seal break in.

 

[BV]

So let me see if this is what I read - The dealer is telling you that raw fuel is being pushed pass the valve guide seals which in turn is considered crankcase pressure that is being dumped out your breather tube and you are smelling this only at an idle ?



Sorry but I have never heard of having to break in valve seals

 

[Rosco]

I think what you are smelling is your engine oil vapors. I don't know if this is you first diesel truck but with the Dodge/Cummins the crankcase vapors are vented out into the atmosphere and at a stop the vapors come in the hvac vents. This condition usually subsides after 1000 miles. That is until you change your oil then it comes back. I use Shell Rotella and it is quite ripe for the 1000 miles or so.