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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sat, Dec-02-2017, 10:00:45 PM   #1
11b4
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Default Fuel pump issue/quick fix?

I'm stuck on the highway right now. My engine just turned off while cruising, but I have battery. I don't hear the pump priming, checked fuse 54 and it's good. I replaced the green relay in the trunk. Still won't crank over, it wants to but it's not getting fuel.
My current 54 fuel pump fuse is a 20 and I tried over powering with a 25 and almost had it crank over.
Tow company wants 290 to tow me 61 miles, so trying to see if theirs a quick solution any1 knows. I'm about to take the rear seat out and tap the pump itself and cross my fingers that works.

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Old Sat, Dec-02-2017, 10:17:54 PM   #2
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Default Fuel pump issue/quick fix?

If your pump relay is bad, you can try a jumper wire from the hot lead into the relay to the power wire going to the pump.

It should be 2 thicker wires. I believe itís a red w/white stripe going to the pump.

The hot lead might be red or violet/black. I can verify in about 30 min.

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Old Sat, Dec-02-2017, 10:29:16 PM   #3
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Default Re: Fuel pump issue/quick fix?

It started but died about 5 seconds after. I'm waiting for a tow truck. Now trying to figure out why my front tow hook and bumper aren't lined up. Ugh

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Old Sat, Dec-02-2017, 10:48:40 PM   #4
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Default Re: Fuel pump issue/quick fix?

What would be a better bet to replace. The fuel pump or the black relay in the back?
Like I said, I don't hear the hum from the pump

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Old Sat, Dec-02-2017, 10:52:32 PM   #5
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Default Fuel pump issue/quick fix?

Quote:
Originally Posted by 11b4 View Post
What would be a better bet to replace. The fuel pump or the black relay in the back?
Like I said, I don't hear the hum from the pump

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Fuel pump. I replaced mine preventively at 100k.

The pump is cooled by being submerged in fuel. Theoretically, those who like to run the tank down to vapors will typically have shorter fuel pump life.

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Old Sat, Dec-02-2017, 11:07:27 PM   #6
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Default Re: Fuel pump issue/quick fix?

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Originally Posted by bigjae1976 View Post
Fuel pump. I replaced mine preventively at 100k.

The pump is cooled by being submerged in fuel. Theoretically, those who like to run the tank down to vapors will typically have shorter fuel pump life.

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There any reason why you don't think replacing the relay would possibly help?
I top off once I get to a 1/4 tank, my tank right now is above 3/4.

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Old Sun, Dec-03-2017, 12:21:49 AM   #7
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Default Re: Fuel pump issue/quick fix?

The tow guy just broke my front bumper..

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Old Sun, Dec-03-2017, 12:30:23 AM   #8
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Default Fuel pump issue/quick fix?

Kevlar reinforcement? Should just pop back on. If thatís the case, Iíd just pull off the bumper before towing. You should have an 8mm wrench in the trunk.


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Old Sun, Dec-03-2017, 12:45:19 AM   #9
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Default Re: Fuel pump issue/quick fix?

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Originally Posted by bigjae1976 View Post
Kevlar reinforcement? Should just pop back on. If thatís the case, Iíd just pull off the bumper before towing. You should have an 8mm wrench in the trunk.


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It's cracked down the middle.. I'm going to look at it more when we get it to my place. Keeping my cool right now

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Old Sun, Dec-03-2017, 01:02:34 AM   #10
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Default Re: Fuel pump issue/quick fix?

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Originally Posted by 11b4 View Post
It's cracked down the middle.. I'm going to look at it more when we get it to my place. Keeping my cool right now

Dude you are kidding? He broke your front bumper! I would be slightly pissed right now.
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Discussing Fuel pump issue/quick fix? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)