My Mean

The following discussion is for 2001>2003 Sprinters only. In 2004 Mercedes moved the low pressure fuel pump to the fuel tank. See the end of this article for Yahoo Posts for 2004> models’ repriming.Due to ignorance, I managed to get air into my fuel system and lose the prime to thefuel pump . Repeated attempts at turning the engine over did not re-establish the prime. After a call a Freightliner mechanic, and a recommendation that I have it towed to the nearest dealer (40 plus miles – forget that), he indicated that all I needed was a means to pump in fuel to purge out the lines and pump. He also made me feel better by indicating that he had fielded other calls from Sprinter owners who had air-locked their fuel pumps. One reason the Sprinter’s 2.7 fuel system is susceptible to airlock is the fuel pump’s high location on the engine. (See the picture to the left.) The location makes for great access and maintenance, but it is bad news when changing the fuel filter or you run out of fuel – gravity takes over and the pump drains. (Because of the low surface tension of diesel, the vacuum of the closed system does not hold long in the presence of air.) The pump also does not have good self-priming capabilities.

Get from here to download 2001-2003 Dodge Sprinter Fuel Pump Repriming Manual