MustangWorks.com : Ford Forums - View Single Post - Fuel pump, Ignition module or something else?

ultraflo · 07-06-2002, 02:54 PM

...speaking of low gas levels, I remember being told that you should NEVER run around on less than a 1/4 tank with an in-tank fuel pump. Why? Because it causes the pump to run hotter than if it were totally submerged in gas to keep 'er cool.

I'm with the other guys on this one... either pump or relay, but your TFI module could be getting ready to take a crap on you also... something to check. Again, listen for your pump to build pressure with the Key On Engine Off. If you can crank the motor over with the key and not get any fire I suspect it's your TFI module, a very common, failure prone part.

Good Luck

07-06-2002, 02:54 PM	#4
ultraflo NX dealer-man Join Date: Sep 1998 Location: Peoria, Illinois Posts: 977	...speaking of low gas levels, I remember being told that you should NEVER run around on less than a 1/4 tank with an in-tank fuel pump. Why? Because it causes the pump to run hotter than if it were totally submerged in gas to keep 'er cool. I'm with the other guys on this one... either pump or relay, but your TFI module could be getting ready to take a crap on you also... something to check. Again, listen for your pump to build pressure with the Key On Engine Off. If you can crank the motor over with the key and not get any fire I suspect it's your TFI module, a very common, failure prone part. Good Luck __________________ RLS Racing! 93 LX 9.20 @ 147mph 03 Mach 1 12.39 @ 116mph