I’m having a problem with my Mustang that I can’t find a solution to. I have a 95 GT Mustang. I have had it teched on a computer and it comes up with a problem code of fuel pump relay. The problem I have is that the fuel pump relay is not found in the fuse box with the large fuses and other relays. It simply is not their. So I have gone to three different mechanics and three ford dealers. The final ford dealer informed me that the fuel pump relay is in the multi function relay located next to the cooling fan. This did not fix my problem and I don’t believe that was the correct piece.
My car runs just fine for 30-45 minutes. Then it sputters and it’s as if the fuel is being turned off and the car dies. I wait for about 20 minutes, start the car and it runs fine. I can’t isolate where the fuel pump relay is on my model. The mechanics can’t find it, the dealers mechanics are telling me its other components that control the fuel pump relay on my car. I have replaced these components with no avail to correcting my problem. I can’t find any sort of schematic from the dealers. Can someone please help me out with this perplexing problem. THANKS!!!!
yes your relay is right behind your radiator over flow tank. its a possability it is your pump. but pumps usually just go not giving any warning. when your car is running pull your vaccum line out of your regulator it could cause it to sputter and die but. it very well could be your regulator. did u reset your pump with the button in the trunk and see if that did anythink?
I'm having a very similar problem with a 94 GT. Runs fine and then sputters a bit, continues on for a bit running fine, sputters again and dies. Then it cranks, but won't fire. I can get it to start by waiting for a while and then starting, or I can just turn the key on and off a few times (jogging the fuel pump) and it fires up. I've replaced (or had a mechanic replace) distributor, control module, coil, plugs, wires, fuel filter, and fuel pump, all about a year ago. Problem went away in the interim year, and then returned last week. I took car back to mechanic and he replaced the fuel pump and filter again (still on warranty) and installed new injectors. Drove it home and it died on the way there... same problem. Now, I don't want to take it back to the same mechanic because I'm starting to feel like a sucker.
I'm brand new here and am still reading thru all the many posts. But if someone has seen this before, or can give me more insight than the mechanic, I'd appreciate it. Seems to be similar to what jprecup is experiencing.
Not necessarily. In some instances they do go without giving you any warning but in others, the engine may cough and splutter, sometimes stalling, and sometimes difficult to restart before the pump goes altogether.
The fuel pump relay is, as CJ mentioned, in the CCRM by the radiator overflow tank. Relays do go without warning and stop working altogether. In the case of the fuel pump relay, that would mean a no start situation.
I think the fuel pump itself may be the culprit for both Jacob and Seapig. It's not unknown for a new part to be a dud and die very early in life.
I'm having a very similar problem with a 94 GT. Runs fine and then sputters a bit, continues on for a bit running fine, sputters again and dies. Then it cranks, but won't fire. I can get it to start by waiting for a while and then starting, or I can just turn the key on and off a few times (jogging the fuel pump) and it fires up. I've replaced (or had a mechanic replace) distributor, control module, coil, plugs, wires, fuel filter, and fuel pump, all about a year ago. Problem went away in the interim year, and then returned last week. I took car back to mechanic and he replaced the fuel pump and filter again (still on warranty) and installed new injectors. Drove it home and it died on the way there... same problem. .
do you have spark when the vehicle won't start??
if so, then check for power at the Fuel Pump relay(FP Relay), check for power coming out of the FP Relay, check for power going into and out of the Fuel Cut-Off Swt, check for power and ground at the FP. you could have a loose ground or connection.
Thanks for the comments, guys. The car is currently back in the shop. After talking with them, I gotta retract the "sucker" comment. Seems to just be a difficult thing to trouble shoot sometimes, especially if you can't repeat the problem in the shop (and I was kinda mad and frustrated at the moment). The injectors were bad, and the new ones have made a huge improvement to performance. Just still have the stalling problem. Ok, conscience is clear now...
Anyway, shop was able to finally repeat the problem and the car died in the shop. When they checked for spark, there wasn't any. ICM? Distributor? Pick-up sensor? I'll let you know what the eventual fix was.
I am new to this forum i own a 1998 mustang v6 and it has a 3.8 ,it sat for over a year and now it has problems starting. It acts like it is getting fuel up to the injectors and acts like it wants to start but just won't start i took the plugs out and they were wet so i cleaned them and put them back in and it started then shut it down and it wouldn't start the next day. I removed the tank and removed the old gas and cleaned it out put new gas in and new spark plugs in it started and after letting it run for a while i left it set over night again and it won't start again.i took the gas cap off and listened and you could hear the pump run and as soon as it is shut off it sounds like the fuel runs back into the tank is this normal? It has me stumped can anyone help me figure this out.
Thanks jack
I am new to this forum i own a 1998 mustang v6 and it has a 3.8 ,it sat for over a year and now it has problems starting. It acts like it is getting fuel up to the injectors and acts like it wants to start but just won't start i took the plugs out and they were wet so i cleaned them and put them back in and it started then shut it down and it wouldn't start the next day. I removed the tank and removed the old gas and cleaned it out put new gas in and new spark plugs in it started and after letting it run for a while i left it set over night again and it won't start again.i took the gas cap off and listened and you could hear the pump run and as soon as it is shut off it sounds like the fuel runs back into the tank is this normal? It has me stumped can anyone help me figure this out.
Thanks jack
Are all of the plugs wet or just some? If it's just some I might say you have some bad injectors. If you have one or two or however many bad injectors just replace them all cause if not you will end up doing them all real soon (from experience). Injectors can be ohm'd out with an ohm meter if you can get to all of the electrical connectors. I can't recall what the ohm's should be for your injectors, but may be relatively the same as on a grand prix i worked on they should have read about 16ohms some would read like 1.2ohms and some would read in kilo ohms very low and very high readings were bad injectors. The symptoms of the grand prix were somewhat similar to yours. It would run for a bit and die and wouldn't start back up until it sat for a while. I'm thinking maybe an injector is just leaking raw fuel through it while the car is off and flooding your plugs.
yes i'm having the same problem... so did u ever find out what you're cars problem was?? need info badly please..., thank you for your info....solo g out
1995 Mustang GT Fuel Pump Problem HELP! 
1998 mustang fuel issue 
