There is a strong gas smell from behind the doors. No wet leaks. Gas cap seals/holds pressure (can hear pressure escape when cap removed).

Car was sitting unknown number of years by previous (unknown) owner.

Is it possible that condensation in the gas tank caused pin holes (I admit I don't know if tank is metal or plastic)? Or, if plastic, that it could be cracked?

If I need a tank replacement, any recommended sources?

Thanks

 

The gas tank is metal. Most likely cause is pinholes rusted in the lines or the top of the tank. I'd put the car up on a lift or jack stand and check the lines. If you don't find any rusty spots, you're gonna have to drop the tank.

To fix a leak in the lines, cut out the bad area and buy a section of replacement line at your favorite parts store. Then pick up some brass compression fittings in the right size at your favorite home improvement store(prices are better). Use the fittings to connect the replacement section to the existing lines. For a gas tank, you can probably find a good one at a junkyard. I don't know if you can get them new.

 

Id check for leaks around filler neck to tank. Mine was seeping around that area & had to have it resoldered.

 

Thanks 92RS Ttop!

 

Thanks 86B4Z!