Fuel Pump Sound?
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Postmaster
Joined: Sep 2004
Posts: 3,916
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From: Bellingham, WA
Fuel Pump Sound?
Symptoms-
First start of the day, truck fires right up, and then I hear almost a metal to metal sound intermitant for about 10 seconds, then it completely goes away. It is coming from under the truck, right at the fuel pump. I assume it's the fuel pump, because there is nothing else around there, but what is the sound? Is the pump going out? It only does it first start, then it will not do it until the next day. If the pump is bad, how much is a new one?
First start of the day, truck fires right up, and then I hear almost a metal to metal sound intermitant for about 10 seconds, then it completely goes away. It is coming from under the truck, right at the fuel pump. I assume it's the fuel pump, because there is nothing else around there, but what is the sound? Is the pump going out? It only does it first start, then it will not do it until the next day. If the pump is bad, how much is a new one?
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Originally Posted by Powerstrokedlariat
Symptoms-
First start of the day, truck fires right up, and then I hear almost a metal to metal sound intermitant for about 10 seconds, then it completely goes away. It is coming from under the truck, right at the fuel pump. I assume it's the fuel pump, because there is nothing else around there, but what is the sound? Is the pump going out? It only does it first start, then it will not do it until the next day. If the pump is bad, how much is a new one?
First start of the day, truck fires right up, and then I hear almost a metal to metal sound intermitant for about 10 seconds, then it completely goes away. It is coming from under the truck, right at the fuel pump. I assume it's the fuel pump, because there is nothing else around there, but what is the sound? Is the pump going out? It only does it first start, then it will not do it until the next day. If the pump is bad, how much is a new one?
Does it sound like a mad bee? It's gulping large amounts of air and/or the pickup is clogged and there is a high vacuum between the pump and the tank.
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Postmaster
Joined: Sep 2004
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From: Bellingham, WA
Mad bee, exactly the sound. I wish I thought of that! Only does it after the engine is started. Key on pump running, no sound. Start truck and it does it. I had my wife start it with my head by the fuel pump and it is definatley coming from the pump. Time for a cleaning? or do you know how much a new pump is? thanks kwik
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Postmaster
Joined: Sep 2004
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From: Bellingham, WA
Yeah, actually mine only does it when it is cold out, like below 40 for the night. If it is over that it does not make a sound, weird. I wonder if it is because the fuel is thicker? (I dont think it is, but I am guessing) I really need to do the pre-pump mods. I know I have a lot of air in there.
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Lead Driver
Joined: Dec 2003
Posts: 5,250
Likes: 42
Mine does it at about the same. Dont think it has gotten that cold around here. After the first run, it wont do it again though.
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