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Old 02-09-2014, 04:48 PM   #1
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No fuel @ schrader valve 1998 V6 ,,,

,,, also, now car won't start. Was rough starting for the past few days but would eventually start. Not now. Dead in the water.

Is there a definitive test for the fuel pump? I get no sound at the tank when the key is in the on position. FP fuse is good. Where would I test for voltage at the pump?

Thanks
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Old 02-09-2014, 05:14 PM   #2
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You would have to pull the tank............try pulling off the upper intake and checking it at the fuel rail.................there is a check valve...........looks like a tire valve..........with the key just turned on it should shoot out a few inches.
Here is the fuel pump http://www.autofuseboxdiagram.com/26...e-box-diagram/
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Old 02-09-2014, 05:27 PM   #3
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Originally Posted by samuelsmith View Post
You would have to pull the tank............try pulling off the upper intake and checking it at the fuel rail.................there is a check valve...........looks like a tire valve..........with the key just turned on it should shoot out a few inches.
Here is the fuel pump 1999 Ford Mustang V6 Fuse Box Diagram � Auto Fuse Box Diagram
Thanks for the response. At first I got fuel at that valve, then n/g - no fuel. That's when the car took a chit.

If I can test the pump while it's still in the tank that would be great. I don't hear pressure building when the key is in the on position. In the past if I cycled the key, the car eventually started, now not so lucky. Maybe I can send a separate 12vdc directly to it, somehow? Just not sure which pins on that plug to use ???
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Old 02-09-2014, 05:37 PM   #4
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Just replace the pump... it's toast.
All of the signs of a failed pump are there.

You can play with it and be absolutely sure that its burned out AFTER you remove it from the tank.
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Old 02-09-2014, 05:44 PM   #5
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Originally Posted by cor66vette View Post
Thanks for the response. At first I got fuel at that valve, then n/g - no fuel. That's when the car took a chit.

If I can test the pump while it's still in the tank that would be great. I don't hear pressure building when the key is in the on position. In the past if I cycled the key, the car eventually started, now not so lucky. Maybe I can send a separate 12vdc directly to it, somehow? Just not sure which pins on that plug to use ???
It gets hard because the passive anti theif system runs to the fuel pump. It's only one wire for pats sorry I do not know the rest. I guess there is a power and ground.....But I have not seen the diagram........If you sign up for mustang m-o-d-d-e-r-s form, they are real slow and a moderator will probably show you a wiring diagram. We are not luck enough here to get someone helpful with electronics.
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Old 02-09-2014, 06:12 PM   #6
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Did you check the fuel shutoff switch, it's usually triggered by an accident, but its still worth checking.
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Old 02-09-2014, 06:28 PM   #7
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Just replace the pump... it's toast.
All of the signs of a failed pump are there.
You can play with it and be absolutely sure that its burned out AFTER you remove it from the tank.
Thanks, but doing that sounds exactly like what I'm trying not to do.

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Originally Posted by samuelsmith View Post
It gets hard because the passive anti theif system runs to the fuel pump. It's only one wire for pats sorry I do not know the rest. I guess there is a power and ground.....But I have not seen the diagram........If you sign up for mustang m-o-d-d-e-r-s form, they are real slow and a moderator will probably show you a wiring diagram. We are not luck enough here to get someone helpful with electronics.
Thanks-again. I'll check online for a diagram and try to test it somehow.

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Did you check the fuel shutoff switch, it's usually triggered by an accident, but its still worth checking.
Thanks, and yes. It was never needing reset, but I bumped it for chitz-n-giggles, and got it to open. I reset it and no change.

You guys are great and I thank you for the input. I hate throwing money at something if all I'm doing is wasting hard earned bucks.
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Old 02-09-2014, 06:28 PM   #8
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Next to the rear brake light on the drivers side trunk. Inertia switch/fuel pump cut off switch
n post late
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Old 02-09-2014, 06:32 PM   #9
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Next to the rear brake light on the drivers side trunk. Inertia switch/fuel pump cut off switch
n post late


Oh, added by edit ,,,

Is the male or female part of the plug attached to the fuel pump?
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Old 02-09-2014, 09:49 PM   #10
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Oh, added by edit ,,,

Is the male or female part of the plug attached to the fuel pump?
I found this. Personally not a big fan of typing, but this should have everything you need to know ......................'98 V-6 Fuel Pump Replacement | Mustang Forums at StangNet
250,000 on a 99 and have not changed the fuel pump. Sorry, I can not help you there.
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Old 02-09-2014, 11:07 PM   #11
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Let us know what you find...
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Old 02-10-2014, 09:25 AM   #12
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Originally Posted by samuelsmith View Post
I found this. Personally not a big fan of typing, but this should have everything you need to know ......................'98 V-6 Fuel Pump Replacement | Mustang Forums at StangNet
250,000 on a 99 and have not changed the fuel pump. Sorry, I can not help you there.
Thanks for that. I found that during my searches and would follow that procedure if I went that route.
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Originally Posted by straybullitt View Post
Let us know what you find...
It's being towed later to a trusted mechanic friend. My son needs it for school and baseball, and to/from his part time job. I just want to get it done.

Thanks again all, for your comments and input. I'll let you guys know how it turns out.
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Old 02-10-2014, 02:28 PM   #13
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How could I NOT have it done

My mechanic friend diagnosed the problem and found that the fuel pump is n/g. Everything else in the fuel delivery circuit checks out fine. The fp sells at Advance for $200 (Airtex E2203M). He was able to get the part for me for $150, and he's asking $100 to change it out. $250 total. I would have paid $200 just for the fp, so, for an extra $50, it'll be done in a day, and while it's being repaired I'll stay clean, I'll be off my back, and I can enjoy a nice leisurely drive with my wife in the Vette with the top down and feel the wind in my hair instead of the irritation of gasoline running through my fingers.

As an aside- I got a quote from FORD and you're gonna chit yourself: $285 labor and $600 for the fp. With tax that's $947.00

I mean really! A no-brainer, right?
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Old 02-10-2014, 03:32 PM   #14
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That's s great deal!
I hear $800 being thrown around a lot...
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