Posts: n/a
03-01-04, 08:06 PM
#1
Brian Hunt
Truck won't start
I have a 88 bronco - when I turn the key to start it, it makes a humming/buzzing sound. I have tried a known good battery and that is not the problem. Any ideas?
Thanks
Thanks
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Join Date: Aug 2003
Posts: 4,320
03-01-04, 08:32 PM
#2
I think you should have your starter bench tested
It's easy to remove on most Broncos
Just a couple of bolts and you can get to it pretty easy
A lot of parts stores will test it for free
It's easy to remove on most Broncos
Just a couple of bolts and you can get to it pretty easy
A lot of parts stores will test it for free
Join Date: Oct 2003
Posts: 2,207
03-02-04, 03:59 PM
#4
Originally posted by slickshiftIt really does no good to bench test a starter. It require very little power or voltage to spin on the bench but that doesn't mean it will start your car. If you have a DVOM, first check battery voltage while trying the starter to see if it maintains enough voltage. If it does try connecting one lead to the positive battery terminal and the other to the starter terminal and see if it reads any voltage when trying to start. If it does, then you have a voltage drop somewhere between the two. Try the same test between closer points to narrow it down. Full battery, no voltage drop means bad starter.
I think you should have your starter bench tested
It's easy to remove on most Broncos
Just a couple of bolts and you can get to it pretty easy
A lot of parts stores will test it for free