Question about Ford Thunderbird
The tank has a seal but that does not mean that is the problem. When the car is not running and it is hot outside remove the gas cap and see if it releasses pressure. If so than chances are the tank is sealed, if not I would buy a gas cap and let the car set for awhile and try it again, If it releases pressure than the gas cap could have been your problem. It would be good to know what your readings from your emission test were to help diagnose the problem. If it still doesn't relase pressure you may need to drop the tank to replace the seal or see if any of the hoses need to be replaced. You have to jack the car up in the rear and support it with jack stands. Remove the hoses going to the filler neck and lower the tank by removing the straps that hold the tank in place. Make sure you put the jack under the tank so you can lower the tank slowly. Make sure you disconnect the battery so as you wont cause any spark. Also try to make sure you have as little of gas as possible in the tank before you drop the tank. You will have to disconnect the fuel lines and the wiring while the tank is still hanging down on the jack. Slide the tank out from under the car remove the fuel pump. It either has a snap ring or a large ring that holds it in place that you can remove with a srew driver and tapping on it with a hammer until it comes off. You might as well replace the fuel pump at the same time it comes with the seal. Just reverse this process to install. hope this helps.
Posted on Jun 26, 2010
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Posted on Jan 02, 2017
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