Is my fuel pump shot? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 05-16-2006
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Is my fuel pump shot?

In a nutshell when starting my truck it takes about 3-4 seconds to turn over. I haven't had a chance to hook it up to a fuel pressure gauge yet but my friend who is a mechanic originally thought it was the fuel filter so we put in a new one, and the problem still exists. This probably isn't the best way around the problem but if I turn the key from "OFF" to "ON" (not turning it all the way) really quick twice, then go from "OFF" to turn it all the way over it starts right up. Does this sound like the fuel filter is on its way out to any of you guys/gals? If so, can anyone recommend a good resource of where I can pick a new one up at. By the way, I have 69k miles on it.

Please check my signature for the specs of my truck.
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Old 05-16-2006
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You could just have a bad check valve in the tank. most of them are white plastic in-line valves that just keep the fuel pressure from bleeding off after you shut the vehicle down. It will not hurt anything(if thats whats wrong) to leave it alone, it just gets kinda aggravating. I had to take mine completely out of the system, all i do when i crank mine now is, turn key on, wait 3-4 seconds and then start. It seems to work pretty well.
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Old 05-16-2006
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Thanks for the input, I'll give that a shot when I leave work tonight.
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Old 05-23-2006
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**Update**
This past Sunday my friend brought home a fuel pressure gauge and we hooked it up. When I cranked it over it sputtered between 10-15 PSI before finally ramping up to around 65 PSI and starting. Once I turned it off, it quickly began to loose pressure diving down to around 10 PSI in a few seconds. When turning the key to the "ON" position it ramped up to 65 PSI again but slowly declined as I left it in the ON position. Is that normal?
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Old 05-30-2006
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^^ no that is not normal.
That is the same problem that i am having.
Have you done anything about it yet?

I think its the fuel pressure regulator, but not 100% on that.
When i turn the key on (not starting it), it reads 60 psi, then within seconds it drops to 0 psi.
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Old 05-30-2006
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It sounds like the check valve is bad in both of these!!! You need to check into one...
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Old 05-30-2006
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so the valve is in the pump? where at?
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Old 05-30-2006
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Quote:
Originally Posted by rangererv
so the valve is in the pump? where at?

The valve is a white plastic single in-single out piece inside your tank. It is in the "out" line from your fuel pump. Ill look for a pic and I will post it.
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Old 05-30-2006
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^^ ok thanks..ill prob pull the pump tomorrow and check it out before i spend $200 on a new pump.
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Old 05-30-2006
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These pix help any with locating the valve?


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Old 05-30-2006
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well the black cylinder thing in the second pic is the regulator, but i see no check valve. I looked and I cant find anything. I will keep looking
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Old 05-30-2006
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^^ ok, well im prob going to end up pullin it tomorrow. im sure i will find it.
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Old 06-05-2006
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I haven't had mine resolved yet, I called my extended warranty co. and the fuel pump is covered, so I'm gonna pay my deductible and have my friends shop change it out.
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