Quote:
Originally Posted by oldman
I'll put in my two cents, I have had slow crank on the car for almost a decade. I did roast at least one starter when I was running long tubes in Texas. That aside, after a decade and three alternators, 4 batteries (maybe 5), several ground wires from engine to chassis, three voltage clamps (located on ground wire from batter to chassis), I've come to the conclusion to save $5 on gas GM just cursed the car to undercharge the battery PERIOD. My last dance was changing the current clamp (have to buy the cable with clamp on 6th gen), even though I have just used the one off my kid's CTS which can be ordered separately. That worked for about a year, then died and the car will just undercharge the battery PERIOD. For about 6 months I could drive around with the defroster on (force the system into charge mode), but that has now failed, and the entire system is back to having a mind of its own a that is undercharging the battery PERIOD.
So long story short I have to plug my car into a trickle charger as I can NEVER be sure if the charging system will decide if it wants to maybe it will charge my battery... maybe if the moon is blue and I throw salt over my shoulder. I can go weeks with everything is fine and then the whole system decides to say at 12.5 volts or so and it does drain the battery, and the car will crank slower and slower. I have always made it home but sometimes it was really fingers cross.
I order a voltage clamp for a CTS and will put it on today. Highly doubt it will do anything. My Camaro is a very early production; GM may have a BCM flash for this... But hey I probably saved $5 on gas over the decade thanks GM!
Last tip is NEVER add a ground wire from battery to chassis as this will confuse the current clamp and you have doomed yourself. Some people say never add any grounding wires PERIOD.
Other than that I don't think I have any stock OEM related problems, pretty good for a decade.
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You seem to be like my dad. Work on things until it's broken instead of fixing things when they actually are a problem.
Out of all of the batteries, alternators, wires, amp clamps. How many times did it ever NOT start? Exclude slow cranking. Just flat out would not start.