240 dl fuel filter replacement

underdog1964 · Post by **underdog1964** » 27 Jun 2007, 17:37

I can't quite figure out how to remove the fuel filter, is there some kind of trick to getting those bolts off the end? My car starts but then it dies immediately, you can do this over and over and it won't stay running. Any help would be appreciated.
Thanks, Mark

wojeepster · Post by **wojeepster** » 27 Jun 2007, 18:36

you hold the flats on the filter with a wrench and undo the banjo bolts on the filter. I am not sure on your running for a short time and stopping but I am thinking it might be fuel pump relay problem. If you have a pressure gage for the fuel line I would connect it and see if the pressure is dropping quickly after starting.

CarVolvo · Post by **CarVolvo** » 27 Jun 2007, 21:53

Hey Mark and welcome!

Why not add your car year so we can help more..and save time?

Its called a banjo fitting because it looks like a banjo.. and the bolt to remove it is actually where the strings on the banjo would be. I think its a 13mm bolt but dont quote me. The bolt goes in between the fitting and the filter ..and actually has a little hole in it to allow fuel in the hose to go into the filter.

I dont think its your filter as much as your relay or fuse or power supply to the fuel system.

One way of testing this is put an wire (with alligator clips on both sides) and connect to fuses 7 and 5 on 1983 and earlier.. or 8 and 10..okay i cant remember ..its late..so just look on your fuse panel for the ones which say.. fuel pumps and connect them together.

This will allow you to bypass the fuel relay and if your car keeps running then you know thats the issue.

If it doesnt run..go to the passenger side of the car and look under the dash for the relay.. a little white box (green for older models).. and look for the big red wire.. test to see if your getting current (terminal 30 if i recall)..if you are then you know that the fuse in the engine bay and the battery link is okay.

If that is not workign then replace the fuse and connection to the positive side of the battery cable.

If all this fails then you might have a defective fuel pump (primary) or you might want to check out your Mass Airflow Sensor.

How long has it been since you changed your filter?