Originally posted by Rogerm60:
Do you hear a sucking woosh when the gas cap is removed? Bad gas caps can cause vacuum in the tank.

I guess it could be the pump screen. Test the fuel pressure.



Thanks for the responses. I do NOT hear a sucking sound when I remove the gas cap. When you say it could be the pump screen, what do you mean? How would I go about testing the fuel pressure?

I am hoping to try other things before I resort to changing the fuel pump ($$$). But if I have to, is there a how-to for changing the fuel pump? Is it a major job?

Thanks again for your help.

06 Mustang GT - stock 96 SE V6 5spd Midnight Red - 15.9 @ 86.8 150K miles Mods: Bilstein struts, H&R springs, Borla Cat-Back, Brullen y-pipe, Gutted Precats, SVT UIM+LIM+TB, K&N FIPK, , DMD, Magnecor KV85