My wifes car has been having problems starting lately. We have had to
boost it every morning and then its good for the rest of the day, till
next morning. I replaced the battery and put on new terminals,
Alternator is putting out 14.68 volts, yet we still have the same
problem. Everything else works no problem,. She had the starter
replaced about 4 months ago. What am I missing for trouble shooting
this problem, This one has got me really stumped.
The Chevy/Geo Prizm is indeed a Toyota Corolla. Actually, none of the
Geo(later blended into Chevy) line was made by General Motors. The Metro and
Tracker were rebadged Suzuki, Storm was a Izuzu, and the Prizm was a Toyota.
The Chevy Nova from the 1980's was also a Toyota Corolla.
I would head over to "alt.autos.toyota". There are probalby a lot more people
over there that have delt with problems on Corollas. Most of the people here
deal with GM produced vehicles.
You need to find out what is draining the battery when ignition is off. If
alternator is putting out 14.5 volts with lights on and engine running about
1500 rpm it is probably ok but it still could have a bad diode. Put a
current meter between the negative battery cable and the battery negative
post and check current draw. If too high you will have to isolate it by
pulling fuses, disconnecting alternator, etc. You could have the battery and
Try leaving one cable off the battery tonight. See if it starts in the AM.
Starts: Indicates that something is draining the battery at night.
Doesn't start: Indicates either poor charging system, or another defective
Now the challenge, to find what's draining the batery over night.
Christopher A. Young
You can't shout down a troll.
Battery needs to be fully charged and load tested first. 2) Check
charging system both cold and warm while under load (all accesories on
high.) Voltages under 13.5 volts indicate generator may be breaking
down under heavy load. If voltage is weak check for voltage drops on
groundside and voltage side of the charging system; Measure these under
heavy load also. After all these have checked out, and prob still
exists, now would be time to check for the parasitic loads as outlined
in a previous entry. Jim
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