Mercury Repair Questions? Ask a Mechanic for Answers ASAP
good afternoon my name is ***** ***** I will assist
does the starter motor turn the motor or does it crank and not start??
do all the lights on the dash light up with the key on???
do you have a voltmeter to do some checks???
ok, I suggest you get one so we can do some checks to see why it wont crank right
get back to me and we will do some testing
you bet. will be here.
ok, start by charging the battery we need it up to 12.6 volts
it will take a while I will be on and off and will be checking my mail
good, got some errands to do and will be back
ok, what is the battery voltage???
ok, have someone inside the car and turn to start and watch the voltage
on the battery first. we will load test the battery first
ok, good. now, take your voltmeter and put the red lead on the positive of the battery and the black on the heavy red wire on the starter solenoid. try cranking it again and see if there is a reading on the voltmeter
if you read 12 volts with that reading, it means you have a 12 volt drop between the battery and the starter. this means the cable is no good. it is like you have next to 0 volts getting to the start solenoid.
you need to do the ground side as well. red lead to negative and black to the case of the starter
thats correct and the black on the case of the starter motor. then try and start and tell me the reading
battery negative sorry
good, then there is no voltage drop on that side.
replace the positive battery cable from the starter solenoid to the battery positive. if you did the check correctly, you are loosing all your voltage in the bad battery cable.
how are you making out
then you did not do the one test correct.
battery was good. you indicated 12 volt loss from battery to starter on the positive cable. if that reading was not correct then you need a starter motor
glad you found it.
understanding voltage drop is a difficult concept if you never did it before