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Ask Mike S. Your Own Question
Mike S.
Mike S., Mechanic
Category: Car
Satisfied Customers: 7155
Experience:  25+ years experience as an auto mechanic.
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New battery but slow to start, laboring looping like until

Customer Question

new battery but slow to start, laboring looping like until it finally starts
JA: Will the headlights turn on? Is the battery fully charged?
Customer: yes and yes
JA: What is the make/model/year of your car?
Customer: 1993 isuzu tropper LS
JA: Are you fixing your Trooper yourself? What have you tried so far?
Customer: Haven't tried anything yet, was thinking maybe bad ground around starter, all other visable ground wire looks good
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 5 months ago.
Category: Car
Expert:  david craig replied 5 months ago.

Hi Im David, the battery is grounded to the block. check the main power cable on the starter for corrosion and tightness. also check the smaller wire on the solenoid

Customer: replied 5 months ago.
I have done a visual inspection and both seem to be fine
Expert:  david craig replied 5 months ago.

put a meter on the battery. make sure its fully charged at 12.5vdc. then leaving the meter on the battery start the car and see how low the voltage drops. it should not go below 9.8vdc.

Customer: replied 5 months ago.
Battery when off is at 12.6 and 14.4 when running
Expert:  david craig replied 5 months ago.

what does it drop to while cranking????

Customer: replied 5 months ago.
didn't check that
Customer: replied 5 months ago.
just checked, voltage while cranking was 10.4
Expert:  david craig replied 5 months ago.

well everything seems up to par. no idea why its slow starting my friend. maybe check the power cable going into the fuse box. make sure its tight

Expert:  Mike S. replied 5 months ago.

The starter bushings are most likely worn and the armature is dragging on the pole shoes causing the starter to turn over slow. Either replace the starter or rebuild it and install new bushings.

Expert:  Mike S. replied 5 months ago.

Did that answer your question? If so, kindly leave me a positive rating, so I get credit. After all, you have already made the deposit.