Quote:
Originally Posted by Frank Reiner
If memory serves, the original D-jet fuel pump has an internal pressure relief valve, and an external check valve. In any event a check valve will be installed downstream (discharge/pressure side) of the pump.
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Yes - It looks like the check valve is where the banjo bolt / barbed line fitting connects - at least on the Bosch replacement pumps. I ordered a new one - not idea how old the one on the car is anyway. We'll see if that fixes it. Given how fast the pressure bleeds off, it doesn't seem like its leaky injectors.