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loud knock @ start-up?

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  • loud knock @ start-up?

    Hello Forum,
    I have a question concerning the 2001 Dodge Ram van I recently purchased. When the key is turned to the "ON" position, I'm getting a very audible clunk, which seems to be at or near the front two tanks. When I purchased the van, the tanks were approx. half full, and there was no noise, but after filling, it has made the clunking noise every time I start it. I'm thinking this isn't right. Anyone ever have a similar problem, and if so, what's the fix? It starts and runs fine, but is it unsafe to drive? Thanks in advance for any help, Russ

  • #2
    Re: loud knock @ start-up?

    Look back by the tanks and fuel lines and see if the that system is equipped with either electric tank valves (look for 2 wires coming out of the valve) or it might also have a high pressure lock-off. The lock-off will also have 2 wires from the solenoid which is mounted on top of the valve assembly.

    Have someone turn the key on and off so you can spot the device.

    Hope this helps

    Larrycng

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