keep off median

I've been lurking for a while and this board has been great! This truck has also been great! No problems in 85K miles except for about the last 5,000 miles I notice when I get out of the truck after driving for a while there is a strong fuel odor. It's a V6 4x4. I'm not really mechanically inclined so I had the fuel filter changed and the recall done but neither the independant shop that did the fuel filter nor the dealer could find any problem that would give me the strong fuel odor I am getting. It's so bad that the smell reall fills up our 2 car garage.

Any ideas!

 

jerryp58

How's the MPG doing, any change?

Have you looked all of the fuel lines over?

How's the gas cap? If it's lost its seal or ability to pressurize you may be getting odor from it.

Do you have any computer faults? There are probably a bunch of sensors that could make the mixture too rich. How's the tailpipe look?

It's a long shot, but have you replaced the plugs lately? I've heard of Dodges that responded very poorly (dumped a lot of fuel into the cylinders) to Bosch Platinum +4s.

Have you tried to sniff out the source? Tailpipe. Intake. Gas cap. Etc.

Just some thoughts.

__________________

Jerry
2004 Frontier, King Cab, XE, 4x1, 4-cyl, 5-spd
My Frontier Page

jpcruiser

Just went through the Nissan Service Manual for the fuel system. It's actually not that complex. I would certainly say that you have a leak. Go through all the lines and the EVAP Canister and look for leaks.

When you run the tank down does the cap hiss when you remove it? If not, then you certainly have a leak somewhere and at a minimum fumes are getting out.

Just don't smoke around it until you have it fixed......

keep off median

Well it seems that we're nearing resolution on this one. After repeated trips to the dealer, they finally dropped the fuel tank and noticed significant corrosion on the actual tank. The truck has 86,000 miles so I am obviously concerned about the cost. The dealer told me that Nissan is providing the tank at no charge and he has a call in about if they will pay the installation also. Anyone have any experience with a failing fuel tank. I've never heard of that happening. Also, any idea if I should expect Nissan to pay the labor or am I in for a big bill?

Thanks for any help!

audiocr381ve

I'm at 135,000 on mine, same car. I have the same odor.

 

keep off median

I'm all set. Dealer installed new gas tank. No charge for the tank or labor. Not bad for a truck with 86,000 miles.

daveabdallah

i have the same smell. i just bought a gas cap which i am sure will not work after treading your entry. there is no recall on the fuel tank. did the dealer have a reason why the replacement was free? can you tell me the name of the dealership?

i have self-diagnostic computer codes: 0304 knock sensor or curcuit fault, 0705 Evap system leak

by the way, i just saw OE fuel tanks on EverythingNissan.com - OEM Nissan Parts, Factory Accessories, NISMO and Nissan Motorsports Parts for $240.