Hit bump, fuel pump fuse blew..
10-03-2011, 03:08 PM
#1
Rennlist Member
Thread Starter
Hit bump, fuel pump fuse blew..
First of all, thanks to knowing what i know from here, it was no big deal.
But..hit a bump on highway, car dies.
Pull off ramp.
Crank no start
Ok..fuel issue.
Swapped relays, no joy.
Check fuse, blown.
New fuse, fixed.
What would pop a fuse on a normal stiff highway bump?
But..hit a bump on highway, car dies.
Pull off ramp.
Crank no start
Ok..fuel issue.
Swapped relays, no joy.
Check fuse, blown.
New fuse, fixed.
What would pop a fuse on a normal stiff highway bump?
10-03-2011, 03:30 PM
#3
Rennlist
Basic Site Sponsor
Basic Site Sponsor
There's a few things that can happen. Start with the most likely, first.
The fuel pump is supported by "rubber feet". These can deform/break over the years and the pump might be oriented in such a way that the "positive" wire can hit the fuel pump cover, when you hit a bump. Remove the cover and see how the pump is oriented, in relationship to the wires. Sometimes simply rotating the pump will move the wire far enough from the cover to cure this problem.
Look at those rubber feet. If they are deformed/broken, you might want to get a new set.
The fuel pump is supported by "rubber feet". These can deform/break over the years and the pump might be oriented in such a way that the "positive" wire can hit the fuel pump cover, when you hit a bump. Remove the cover and see how the pump is oriented, in relationship to the wires. Sometimes simply rotating the pump will move the wire far enough from the cover to cure this problem.
Look at those rubber feet. If they are deformed/broken, you might want to get a new set.
__________________
greg brown
714 879 9072
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Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
greg brown
714 879 9072
GregBBRD@aol.com
Semi-retired, as of Feb 1, 2023.
The days of free technical advice are over.
Free consultations will no longer be available.
Will still be in the shop, isolated and exclusively working on project cars, developmental work and products, engines and transmissions.
Have fun with your 928's people!
10-03-2011, 03:59 PM
#5
Race Director
There's a few things that can happen. Start with the most likely, first.
The fuel pump is supported by "rubber feet". These can deform/break over the years and the pump might be oriented in such a way that the "positive" wire can hit the fuel pump cover, when you hit a bump. Remove the cover and see how the pump is oriented, in relationship to the wires. Sometimes simply rotating the pump will move the wire far enough from the cover to cure this problem.
Look at those rubber feet. If they are deformed/broken, you might want to get a new set.
The fuel pump is supported by "rubber feet". These can deform/break over the years and the pump might be oriented in such a way that the "positive" wire can hit the fuel pump cover, when you hit a bump. Remove the cover and see how the pump is oriented, in relationship to the wires. Sometimes simply rotating the pump will move the wire far enough from the cover to cure this problem.
Look at those rubber feet. If they are deformed/broken, you might want to get a new set.
thats my answer....the pump rotated enough to hit-short under the force of the impact which blew the fuse....
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10-03-2011, 04:20 PM
#9
Three Wheelin'
Had a short in my O2 wires that would cause my fuse to blow as well. Had it replaced with the fuse and was back in business. Guessing there's a short in your O2 wiring.
