What is the symptom of my fuel injection pump seals leaking?
The most common symptom is that you can’t start your car, because the fuel has leaked out of the pump overnight and so there is air in your fuel lines. Look under your car and see if there is a puddle of fuel. If your injector pump does fail! • First, try switching back to biodiesel. Several people have reported that running at least 30% biodiesel re-swells the injector pump seals and stops the leaking. Let the injector pump absorb the biodiesel for 24 hours or more before giving up. • Avoid the dealer unless you can get the repair done under warranty. VW dealers typically charge $3k to replace your injector pump and fuel injectors and purge your entire fuel system. The same repair done at an independent garage typically costs half or less of what VW charges. Dealers are also notorious for diagnosing all fuel system problems in cars with biodiesel stickers as injector pump failures, and have recommended $3k repairs when they simply failed to bleed the air out of a new fuel filter. • If
