12 Valve Engine and Drivetrain Talk about the 12V engine and drivetrain here. This is for 1994-1998.5 engine and drivetrain discussion only.

fuel prefilter

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Old 04-19-2007, 09:06 AM
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fuel prefilter

Does anyone have any info on how to locate, remove, and clean the fuel prefilter screen. Thanks
Old 04-19-2007, 09:23 AM
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The pre-heater looks a bit like a Chevy fuel pump and is located above and to the front of the starter. You remove the bowl with a 17mm (if I recall) wrench. Do it from the top so you don't get diesel fuel in your armpit. Once the bowl is off you can crawl underneath the truck and remove and clean the screen.

Better yet, here's some good instructions http://www.dodgeram.org/tech/dsl/fil...filt_clean.htm Bookmark this page. There's a wealth of info there.
Old 04-19-2007, 09:49 AM
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good link!

"Only two wrenches are needed to do this job - 17mm, 24mm"
Old 04-20-2007, 02:03 AM
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I've done mine twice so far and I attacked it from the bottom. The truck is just too tall and I have a harder time reaching it from the top. Just loosen it and move your arm away quickly, and let some of the diesel drain. I only get a little diesel on my wrench. Put an oil pan under there.
Old 04-20-2007, 06:54 AM
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Dont waste too much time looking for your 24mm. It's a sheet metal nut so a pair of water pipe pliers works just as well.
Old 04-20-2007, 04:02 PM
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thanks berner

Originally Posted by berner
The pre-heater looks a bit like a Chevy fuel pump and is located above and to the front of the starter. You remove the bowl with a 17mm (if I recall) wrench. Do it from the top so you don't get diesel fuel in your armpit. Once the bowl is off you can crawl underneath the truck and remove and clean the screen.

Better yet, here's some good instructions http://www.dodgeram.org/tech/dsl/fil...filt_clean.htm Bookmark this page. There's a wealth of info there.
Thanks for the time getting me the link, hope I get some power back, see ya
Old 04-20-2007, 06:18 PM
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Can ya take pre filter out without draining fuel filter or will all the fuel come out . Just did my filter don't want to do it again .Also I don't know how you guys get the filter can out from undernieth , my fuel lines are in the way , can't slide it out by the framerail , had to come up in front of mastercylinder and that wasn't easy either, first time doing it. Picked up 2 screen kits from cummins about 8 bucks each.
Old 04-20-2007, 06:25 PM
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just whatever is in the pre-filter bowl is all that comes out
Old 04-20-2007, 07:20 PM
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Originally Posted by caper
Can ya take pre filter out without draining fuel filter or will all the fuel come out . Just did my filter don't want to do it again .Also I don't know how you guys get the filter can out from undernieth , my fuel lines are in the way , can't slide it out by the framerail , had to come up in front of mastercylinder and that wasn't easy either, first time doing it. Picked up 2 screen kits from cummins about 8 bucks each.
Just the fuel in the prefilter comes out. About 1/2 cup or so. I got mine from Cummins for about $8 too. Gotta love it!
Old 04-20-2007, 07:31 PM
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Originally Posted by caper
Can ya take pre filter out without draining fuel filter or will all the fuel come out . Just did my filter don't want to do it again .Also I don't know how you guys get the filter can out from undernieth , my fuel lines are in the way , can't slide it out by the framerail , had to come up in front of mastercylinder and that wasn't easy either, first time doing it. Picked up 2 screen kits from cummins about 8 bucks each.
Isnt changing the fuel filter on a 12V a treat?
Old 04-20-2007, 07:36 PM
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Originally Posted by Dr. Evil
Isnt changing the fuel filter on a 12V a treat?
Treat for the engine yes...
Old 04-20-2007, 09:07 PM
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This why mine does not get done as often as I'd like.
Old 04-21-2007, 08:40 PM
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Thanks for the info guys , the 12v FF change won't be as bad the second time, was going to do the screen then but was scared to push my luck after geting it fired up with the FF change.Only took like 3 pumps with the primer and filling can half way to get fuel out the bleeder . Thought there was something wrong lol , with all stories of hundreds of pumps.
Old 04-22-2007, 06:06 AM
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thanks

Originally Posted by berner
The pre-heater looks a bit like a Chevy fuel pump and is located above and to the front of the starter. You remove the bowl with a 17mm (if I recall) wrench. Do it from the top so you don't get diesel fuel in your armpit. Once the bowl is off you can crawl underneath the truck and remove and clean the screen.

Better yet, here's some good instructions http://www.dodgeram.org/tech/dsl/fil...filt_clean.htm Bookmark this page. There's a wealth of info there.
not to bad, not very dirty, now I know for next time, thanks
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