2009 - 2014 Fuse 27 Melting Issue
02-18-2017, 09:02 PM
#171
Senior Member
RNLCOMP - I am not disagreeing. Tasca shows them different.
As far as the fuse overheating, the fuel pump runs all the time. Other loads are intermittent. They might draw the same amps as the fuel pump but have a less than 100% duty cycle. Once a connection starts to heat, it typically loses tension (tightness) or oxidizes the metal either of which will increase resistance and lead to failure. Much like water overtopping an earthen dam.
Do the >=2015 trucks still use the same small fuse?
I can't tell by looking at the owners manual.
As far as the fuse overheating, the fuel pump runs all the time. Other loads are intermittent. They might draw the same amps as the fuel pump but have a less than 100% duty cycle. Once a connection starts to heat, it typically loses tension (tightness) or oxidizes the metal either of which will increase resistance and lead to failure. Much like water overtopping an earthen dam.
Do the >=2015 trucks still use the same small fuse?
I can't tell by looking at the owners manual.
Last edited by Feathermerchant; 02-18-2017 at 09:05 PM.
02-18-2017, 09:18 PM
#172
RNLCOMP - I am not disagreeing. Tasca shows them different.
As far as the fuse overheating, the fuel pump runs all the time. Other loads are intermittent. They might draw the same amps as the fuel pump but have a less than 100% duty cycle. Once a connection starts to heat, it typically loses tension (tightness) or oxidizes the metal either of which will increase resistance and lead to failure. Much like water overtopping an earthen dam.
Do the >=2015 trucks still use the same small fuse?
I can't tell by looking at the owners manual.
As far as the fuse overheating, the fuel pump runs all the time. Other loads are intermittent. They might draw the same amps as the fuel pump but have a less than 100% duty cycle. Once a connection starts to heat, it typically loses tension (tightness) or oxidizes the metal either of which will increase resistance and lead to failure. Much like water overtopping an earthen dam.
Do the >=2015 trucks still use the same small fuse?
I can't tell by looking at the owners manual.
The DI TT 3.5 also has an injection fuel pump. Yes that application has two (2) fuel pumps.
What part are you confused with? I'm not looking at a parts fiche, I'm looking at a Ford service manual. Can't comment on the 15> as I do not have access to those documents.
.
Last edited by RLXXI; 02-18-2017 at 09:30 PM.
02-18-2017, 10:22 PM
#173
Senior Member
It was asked above if all trucks use the same fuel pump. It was a guy with a NA V6 I think.
Post #160.
I looked at the 2015 owners manual to see if the same size 20A fuse is used. I cannot tell by the diagram but it does not look like the big square one that comes in the repair kit here.
Post #160.
I looked at the 2015 owners manual to see if the same size 20A fuse is used. I cannot tell by the diagram but it does not look like the big square one that comes in the repair kit here.
02-20-2017, 10:35 AM
#174
02-20-2017, 11:04 AM
#175
Senior Member
It was asked above if all trucks use the same fuel pump. It was a guy with a NA V6 I think.
Post #160.
I looked at the 2015 owners manual to see if the same size 20A fuse is used. I cannot tell by the diagram but it does not look like the big square one that comes in the repair kit here.
Post #160.
I looked at the 2015 owners manual to see if the same size 20A fuse is used. I cannot tell by the diagram but it does not look like the big square one that comes in the repair kit here.
02-20-2017, 11:52 AM
#176
Senior Member
02-20-2017, 12:00 PM
#177
I have struggled with female connection resistance for a long time. I have found that alcohol helps quite a bit.
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RaptoRx7 (02-20-2017)
02-20-2017, 01:14 PM
#178
Senior Member
This seems to be the larger "cartridge" style fuse, instead of the mini fuse. So Ford at least fixed it on the new models.
As I commented above, when I did the mod Saturday afternoon, the target wire is a very stiff 12 gauge wire. Much beefier looking than the dinky little socket and fuse.
As I commented above, when I did the mod Saturday afternoon, the target wire is a very stiff 12 gauge wire. Much beefier looking than the dinky little socket and fuse.
The following users liked this post:
clm65 (02-20-2017)
02-20-2017, 02:02 PM
#180
Senior Member
This seems to be the larger "cartridge" style fuse, instead of the mini fuse. So Ford at least fixed it on the new models.
As I commented above, when I did the mod Saturday afternoon, the target wire is a very stiff 12 gauge wire. Much beefier looking than the dinky little socket and fuse.
As I commented above, when I did the mod Saturday afternoon, the target wire is a very stiff 12 gauge wire. Much beefier looking than the dinky little socket and fuse.