Join Date: Jan 2009
Location: Abbotsford (Vancouver) British Columbia
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bubbles indicate a leak in fuel line between fuel pickup tube in tank and inlet fitting at fuel pump.
when engine is not running, fuel leaks out and air replaces void in line. on startup, negative pressure (suction) more air is intrduced in fuel line. in any diesel engine, a small amount of air (bubble) can cause a stall when introduced to severall cylinders
especially psd's because of a fuel and oil rail problem not allowing proper flow to certain cylinders. particularly #8. any slight deviation from oil (hpop) and fuel pressure from specifications on these engines and performance issues show up.
that is partly why ford is going bankrupt repairing so many problems on warranty.
check for bubbles and make sure you get fuel pressure in the mid 50's