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Mid-Missouri | Does it run bad idling in the driveway or only when pulling a big load?
If it runs poorly in the driveway, hook up a fuel line to the injection pump with a quart bottle full of fuel. Squeeze the bottle for pressure while it is running a see what you have.
You could maybe google the injection pump model number for some common specs such as what inlet fuel pressure it requires, etc..., or call a local good pump shop...you might need them after diagnosing...but I doubt it.
I do not believe there should ever be pressure in the fuel tank, especially if it has a vented cap, unless it was a one-way vented cap. Find out where the pressure source is coming from. The only way I am familiar with that is filling it full, and temperature/sun heat cause the pressure.
Don't thread the cap on crooked. I know some tanks have been replaced because of difficulty getting the cap on properly. It should likely have a flat o-ring in the cap for sealing the tank.
Edited by seedcleaner 5/28/2015 07:50
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6410 fuel issues
