The alternator normally has absolutely nothing to do with the fuel pump. However, since they are not too far apart, in the process of replacing the alternator, something could have hit the fuel pump and damaged it. So, while there is an extremely high probability the two are not connected, there is a possibility they are connected.
The ground cable, on the battery may need to be tightened or cleaned. The alternator voltage regulator may need to be replaced.
Try an ignition switch.
Inside the alternator
The Alternator is not putting out enough voltage. If you recently replaced the alternator with a "new" remanufactured alternator that one could be bad to your truck somewhere to get it tested.
I think we figured it out. Believe it is the throw out bearings.
If your battery is not fully functioning and needs to be replaced, it can make the alternator work harder. This could cause a brand new alternator to go bad. Check your battery, if the battery is not the issue, return the alternator, it should have a warranty on it for at least the first 30 days.
Yes it could.
If a washer pump was replaced on a Jeep Wrangler and is still not working the fuses should be checked. The washer switch should also be checked as it could also be causing the pump not to work.
chances are it's the voltage regulatorit could also be a wire no connected on the alternator
The computer controls the alternator. If the charging system is malfunctioning, that could be the cause of the weak battery.The computer controls the alternator. If the charging system is malfunctioning, that could be the cause of the weak battery.
It could be an alternator. Check with a mechanic if that is the issue.
you have a short where negative is touching the metal of the car or it is grounded inproperly