Fuel Pump Driver Module- Check yours!!
09-06-2016, 10:24 AM
#254
Junior Member
Join Date: Aug 2016
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Changed out mine today on my 2004 fx4
Attachment 446824
It was cracked almost in half. Pretty nasty. It was throwing a code. Ordered new one from Amazon.
Attachment 446824
It was cracked almost in half. Pretty nasty. It was throwing a code. Ordered new one from Amazon.
-james
09-06-2016, 01:09 PM
#255
Senior Member
09-07-2016, 11:42 AM
#256
Junior Member
Join Date: Aug 2016
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
05-10-2017, 04:25 AM
#257
Junior Member
Join Date: May 2017
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Don't know if anyone else had my issue. Mine is a 2008 E350 van and was a no-start condition due to fuel pressure. While troubleshooting, I noticed my test light was dimmer than normal when grounded to the frame or bumper. When I grounded to the axle or body, the light was normal brightness. I had a very corroded ground strap that ran between the body and frame to provide the frame with ground from the body. I replaced it and solved the problem. The FPDM could not do its job properly because its ground wire is connected to the frame and had a high resistance path to ground through the bad strap. When replacing the strap, I went from the frame to the starter lug where the negative battery cable connects rather than to the body like the original design. I also slathered silicone grease all over the new ground strap to help prevent it from corroding and repeating the problem. I could have easily misdiagnosed this and wasted big $ on a fuel pump and FPDM replacement.
05-10-2017, 08:52 AM
#258
Don't know if anyone else had my issue. Mine is a 2008 E350 van and was a no-start condition due to fuel pressure. While troubleshooting, I noticed my test light was dimmer than normal when grounded to the frame or bumper. When I grounded to the axle or body, the light was normal brightness. I had a very corroded ground strap that ran between the body and frame to provide the frame with ground from the body. I replaced it and solved the problem. The FPDM could not do its job properly because its ground wire is connected to the frame and had a high resistance path to ground through the bad strap. When replacing the strap, I went from the frame to the starter lug where the negative battery cable connects rather than to the body like the original design. I also slathered silicone grease all over the new ground strap to help prevent it from corroding and repeating the problem. I could have easily misdiagnosed this and wasted big $ on a fuel pump and FPDM replacement.
do 2008 F150's have this same strap somewhere? if it does, and this is an issue that is occuring, would you be able to notice it on other systems? (like cabin lights being dim, or anything?)
*knock on wood* my truck hasnt had a no-start in a while, but it still happened 1-2 times after i replaced my FPDM last spring
05-20-2017, 11:05 AM
#259
Junior Member
Join Date: May 2017
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
My body ground strap was fine so body components worked fine. The frame is isolated from the body and engine by rubber mounts, so the only reliable ground path for the frame is through the ground strap. My frame strap connected to the body and was very corroded.
