Where is the fuel pump relay located, 99 mustang - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 8 Old 11-11-2007, 01:11 PM Thread Starter
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Where is the fuel pump relay located, 99 mustang (updated)

hey all, Im looking for the fuel pump relay on my 99 mustang v6. I think i've found it in the trunk, left side. Im trying to jump it so i can pump all the gas out of the tank before i drop it. Ive tried jumping it, but its not working.. Any help or ideas would be great. Thanks.


Last edited by vortech90gt; 11-15-2007 at 01:39 PM.
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post #2 of 8 Old 11-11-2007, 10:18 PM
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Its part of the Constant control relay module.
"The Constant Control Relay Module is mounted on bracket, behind engine coolant reservoir."

other words, you can't get to it.


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post #3 of 8 Old 11-12-2007, 01:52 PM
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Quote:
Originally Posted by vortech90gt View Post
hey all, Im looking for the fuel pump relay on my 99 mustang v6. I think i've found it in the trunk, left side. Im trying to jump it so i can pump all the gas out of the tank before i drop it. Ive tried jumping it, but its not working.. Any help or ideas would be great. Thanks.
That is correct. That is the fuel pump relay and the red button is incase of collision that is cuts off the pump. Why don't you just siphon it out?

The CCRM is located in the passenger side fender wheel and you can get to it by removed the wheel and inner fender wheel.

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post #4 of 8 Old 11-12-2007, 05:15 PM
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That's incorrect. there is no relay in the trunk. What you are referring to is the Inertia switch. The switch has to complete the fuel pump circuit regardless for operation. When the little ball bearing inside rolls out of its slot from a sudden jolt from a collision it breaks the contact. The actual fuel pump relay is located inside a solid state module as i stated earlier and you're not going to get to it...

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post #5 of 8 Old 11-12-2007, 06:53 PM
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My mistake you are right. I couldn't remember the name of the inertia switch and I thought it was the relay. In theory you could apply 12V to the correct wiring going into the CCRM for the fuel pump relay but it would be a waste of time. Better off just syphoning it out.

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post #6 of 8 Old 11-12-2007, 10:05 PM
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I'd just do it like a man and drop the tank full... put a floor jack under it with some wood and lower it down.

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post #7 of 8 Old 11-12-2007, 10:16 PM
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post #8 of 8 Old 11-15-2007, 01:35 PM Thread Starter
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Um thanks guys, but i know what an inertia switch is. The part is was asking about is in the pic below. Its tied into the fuel pump harness. I tried to siphon it out, but it feels like theres a blocker



Anyways, its almost running

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