Truck has just had batteries replaced and cable connectors replaced.
Problem still persists that after glow plug light goes out I engage the
starter and the voltage drops to @8 volts and a clicking sound is heard. I
can continue to try to start it and it will start after a few times. It
started a while back but has gotten progressively worse. PEP Boys checked
the electricals twice and said everything is fine including the starter.
What are they missing
Another thing I would do at this stage is to get or borrow a clamp on
current meter to see how much power is going were during glow plug
preheat and cranking. Also (and this one is a must do) put a
voltmeter between each postive battery terminal when cranking and
record reading and then between the starter and each postive battery
terminal and record those reading to. (this will tell us how much
voltage drop or current loss there may be and also if batteries are
both carrng the load. Do this and let me see your numbers.
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Don't know if you checked the cable lug at the starter. Anyway, there is a
rubber boot to keep all the crap off the connection, it has a drain hole
that get's plugged with crap and corrosion set's in.
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