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What's up with my AirDog


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Your going to think I am crazy, but what would make your fuel pressure go up when you hit your brakes. Pressure runs steady 17psi hit the brakes and it goes up to 18.50 almost 19.:shrug:It has done this since I replaced my airdog 100 with the 150.

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Full tank, half tank, or empty tank?????? If it happens more as your fuel gets lower, it could be something along the lines of that your draw straw/pickup tube is too short or is moving around in the tank.Your gauge could be going out. When you slow down/hit the brakes, does the gauge needle fall in the direction of the front of the truck???Could be a bad ground like said above that is affecting the pump itself.......or if electrical gauge it could be affecting the sender.

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:shrug:It does itfull, empty it dont matter. It is a manual gauge. I been thinking about it and I wonder if a air bubble in the line would cause this? The line is coming off the pump and it is running along the side of the frame rail, if it had a bubble along the frame and when you apply the brakes gravity would push forward?

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Does it happen everytime you hit the brakes, like stopped? Or does it happen as you decelerate? My pressure goes up as I decelerate, the harder I brake the higher the pressure. I run about 8-9 normally, and can get 11-12 if I stop quite quick. If its that then its normal.

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its the brake lights sucking up all the electricity:lmao:but seriously, when my airdog wasn't moving much fuel, it was cause it had trouble getting power(corroded battery terminals). could you(would you wanna) wire a volt/amp gauge at the pump so you could tell if it was a power issue.

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