Quote:
Originally Posted by 73220downer
When I park my car at an upward angle and restart the engine it sputters and dies. The car runs fine when parked on a flat surface or downward angle. I've checked the filters, the tank screen, the tank vent, cleaned all the check valves and banjo bolts and lengthened the spring on the fuel pressure valve, and replaced several possibly suspect fuel hoses.
Of note also is the prefilter, which is only about 1/2 full no matter how much I hand prime it. Small bubbles appear as well. Could my lift pump be bad?
Car is a 1973 220D.
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Yes it could be the Fuel Supply/Lift Pump.
Do you have the new style Hand Primer on the Fuel Supply/Lift Pump? The old style hand primer one has a hard plastic knob on it that is usually white. Also when you pump on them whe worn out they usually leak fuel and become a source of an air leak.
If your hand Primer is by your canister fuel filter (if you have that type of fuel filter) I don't know if it is possible for them to get air leaks.
The bubble in the plast filter is normal as long as you do not see bubbles moving into the Fuel Supply/Lift Pump.