Fuel Pump Died :(
 

Hey guys, was driving my car today and after mostly a normal acting day of driving, I started getting insane hesitation and huge power loss and the dreaded engine light. Took it too my mechanic, he hooked it into his computer and took it for a spin. Said it was the fuel pump long story short. He said they were 350 - 1250$ depending on the pump!?? Seems insane to me but he showed me on NAPA. Can I get a good fuel pump for a bolt on GT for a good price I don't wanna spend that much!!!? Thanks :tup

You can get a good pump for much less than $1250. One of the 4.6 guys on here will probably have a suggestion. Might as well go with an upgrade while you are at it so you are ready for future mods.

Okay well that's good to know. Im gonna be cutting back on mods for a while cause of money so all I need is a good pump for basic bolt ons. I also heard there could be more to the whole fuel pump thing, I was reading we have a relay of some sort or that the PCM could be off in some way. Do you know anything about that?

If the mechanic didn't use a fuel pressure gauge I don't know how he would have determined it needed a pump. If you had a relay problem I don't think the car would run at all. As far as an upgraded pump goes, it really wouldn't cost much more than a stocker.

He didn't use a gauge he said he'd have to do that tomorrow to see if its for sure pump. What he did was ran a scanner through the OBD port and test drove it and during WOT or harder throttle he could see the amount of fuel was no where close to what It needed to be it shot down instead of up.

You might want to have your fuel filter changed first. I am no mechanic but a person would think that if the fuel pump is shot then it would not pump at all and you would not even be able to start your car.

Fuel Filter is very recently new. Yea it was just while driving. It started up fine after I shut It off when I got home before mechanics. That's why im wondering if it's on its last legs or if theres something else within a mustangs fuel system that could be causing not enough fuel all of a sudden when on harder throttle.

A bad pump can cause the problems you are having. Often a bad pump will work fine during light throttle and only cause issues under heavy throttle.

Yea that's exactly what's been happening, so I don't know anything about the pumps. What size would I need stock, and what would be worth upgrading too just with bolt ons to get something better performance wise?