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01-24-2008, 01:18 AM
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#1 |
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Registered User
Join Date: Oct 2006
Location: calgary
Posts: 224
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alt help
so when i am sitting at a red light with my heat on and lights and stario going my volt meter drops big time down from 14 volt to just above 9 turn it all off and it jumps right back up so i put a new alt in and it stayed down to 9 volt but every thing worked. was driveing it and it died. i found a broken wire comeing off the back of the alt fixed it got a boost and now it will only go up to half way between 14 and 9 and its slowing droping.
could it be a bad battery? i had the old alt tested and it tested good might have been because of the broken wire? need help as its my dd truck is a 98 chevy 1500 ext 5.7 vortec with ac |
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01-24-2008, 02:26 AM
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#2 |
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State of Confusion!
  
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 48,486
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Re: alt help
Sounds like it might be.
The way I normally test my battery (underload) is measure the woltage across the posts with a multimeter. Then have my wife/daughter crank it. If the voltage drops to 9 or lower, then the battery is NG.
__________________
Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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01-24-2008, 02:30 AM
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#3 |
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Registered User
Join Date: Oct 2006
Location: calgary
Posts: 224
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Re: alt help
i was told that it you put a charger on it it should jump right up the slowley drop and it if drops fast the the barttry is ng and i put a charger on it and it only droped to half way
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