Prime the Fuel Lines?
Thread Starter
Junior Member
Joined: Jul 2009
Posts: 23
Likes: 0
2002 c240
Prime the Fuel Lines?
I swapped out my fuel pump and though the fuse no longer pops, the car won't start.
It seems like I'd need to bleed the lines of air and replace with fuel, how do I do this?
It seems like I'd need to bleed the lines of air and replace with fuel, how do I do this?
Super Member
Joined: Jul 2015
Posts: 799
Likes: 190
From: San Diego, CA
2016 E350 Sport; Mom Wrecked the 2008 E350; sold the 2002 C320
Open the ignition key to the "On" position (position 2) but don't crank the engine. Leave it in position 2 for about 2-3 minutes. After that, go ahead and crank the engine - it might still take a little bit of cranking but it should start fairly soon.
When you open the ignition key as instructed above, the fuel pump will run and fill up the filter, new pump & fuel lines.
When you open the ignition key as instructed above, the fuel pump will run and fill up the filter, new pump & fuel lines.
Thread Starter
Junior Member
Joined: Jul 2009
Posts: 23
Likes: 0
2002 c240
Open the ignition key to the "On" position (position 2) but don't crank the engine. Leave it in position 2 for about 2-3 minutes. After that, go ahead and crank the engine - it might still take a little bit of cranking but it should start fairly soon.
When you open the ignition key as instructed above, the fuel pump will run and fill up the filter, new pump & fuel lines.
When you open the ignition key as instructed above, the fuel pump will run and fill up the filter, new pump & fuel lines.
"the rear SAM fuel pump relay and the front SAM engine relay plus all the R AND F SAM fuses"
But just in case I did order a relay that the auto parts store claimed to be the fuel pump relay but seeing as the pump runs is there a need to check/replace the relay?
I bought a Bosch fuel pump from one of the sponsors here that also happen to be in Simi Valley, an hour and change from where I live
