Question about 2008 Ford Escape
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Posted on Jan 02, 2017
Now, in the past year, when I fill the gas tank, I can smell gas fumes inside the car (remember, it's a wagon).
I have a lot of customers that run into this problem and get the same answers from the dealers.
Given the age of the car and that it has been in a accident, here is what I would look for first.
1. First, because of the accident I would look to see if all the work was performed properly around the gas tank. Check the filler neck to make sure that all hoses and clamps are tight and in good shape, if cracked or it has any bad spots in it, replace it. The tech. that repaired the car could have missed something by accident; this is always a good place to start with by double-checking the work that was done.
2. I've had the Fuel Pump replaced twice due to recall. Another possibility, when they installed the fuel pump they may not have put the seal in right or it could have slipped. There is usually a rubber ring that goes between the tank and the pump and it might have moved during installation. When you fill the tank to the top it may come out because the seal slipped out of position.
3. I'm not sure on this model but on a lot of the newer cars they have been mounting the charcoal canister in the quarter panel next to the fuel neck but it may be hidden behind a plastic cover. The charcoal canister may have been damaged from the accident or it could just be defective and when you fill the tank up it may be going into the canister and fumes are coming from it or gas may be leaking out of it.
4. I have found that some of my customers have been over filling the tank trying to put as much as they can squeeze into the tank, this is not a good idea. When it gets hot outside, the gas expands and has no where to go except into the canister or lines of the canister, this system is not meant to handle gas, it is only meant to handle fumes. You will smell gas if you try to over fill the tank. When you fill it at the station you should let it click off. Just try rounding it off to the fifty cent mark, (example: $10.03 only go to $10.50 not $11.00) this will help you to keep from over filling the tank and neck of the tank. Over filling the tank can clause damage to the canister and components in this emission system.
These are things that the average person with some mechanical knowledge can check out on their own. After this point, it will usually have to be looked into by a fully qualified tech. with good trouble shooting skills that can follow the flowcharts to find the problem.
Posted on Oct 28, 2008
there can either be a hole in the tank or in the carbon filter of the fuel system. or a bad seal on a hose leading to that Carbon filter. But assuming that the smel is stronger at the rearside, it is more likely to be an issue around the gas tank. Maybe if the belly 'sat' on a rock it could be even on the upper part of the tank(but not that likely, rather a joint again)
Posted on Apr 15, 2009
Check to make sure its not a leak. If its a leak, there is a product at Most Auto part stores that will stop a leak even when its leaking gas. If this doesnt work, you would have to remove the tank for repair or replacement.
Posted on Jul 02, 2009
A FORD EQUIPED WITH DUAL TANKS THIS YEAR MODEL HAS CHECK VALVES IN THE FUEL PUMPS .THE FUEL RUNS FROM THE REAR TANK WHEN IT IS POWERED ON TO A TEE AND INTO THE SAME LINE AS THE FRONT PUMP . THE PROBLEM IS AT THE BOTTOM OF THE FRONT FUEL PUMP THERE IS A CHECK VALVE ON THE FOOT AND IT IS NOT WORKING.WHILE THE TRUCK IS RUNNING WITH THE REAR FUEL PUMP ON IT IS PUMPING FUEL INTO THE FRONT TANK . IT WILL RUN OUT OF THE NECK WHEN IT IS FULL.THE FIX IS SIMPLE REPLACE THE FRONT FUEL PUMP. THEY DONT MAKE A CHECK VALVE REPLACEMENT I CHECKED I HAD THE SAME PROBLEM AS YOU.
Posted on Oct 13, 2009
Having worked for Ford for 25 years and having seen this very same problem (fuel flows between tank and overflows) many times there is only one cause of the fuel flooding the other tank, the fuel switching valve on the frame rail under the truck is detective, this valve contains special silicone rubber poppet valves that open when the front or wear tank fuel pump is selected, it then seals when the tanks electric pump is shut off at the selector switch, your poppet valves are leaking, all to a common problem. Back in 2000 when I retired this switching valve was no longer sold by Ford parts, it is obsolete. I suggest you check with Ford to see if it is available from some other source or call a local parts store like NAPA or Carquest and inquire is anyone in the aftermarket has them. The last choice is a used one, but of course it could have the same problem as yours as age and deterioration of the rubber valves is what makes them leak.
Posted on Oct 31, 2011
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