losing battery over a day
Thread Starter
5th Gear
Joined: Nov 2008
Posts: 5
Likes: 0
From: las vegas nv
losing battery over a day
as it states i am losing cranking power if the car doesnt run for over 14 hrs any clue?? thanks for the help
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
Melting Slicks
Joined: May 2007
Posts: 2,171
Likes: 1
From: Warwick RI
as it states i am losing cranking power if the car doesnt run for over 14 hrs any clue?? thanks for the help
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
Find out what is staying on....if there is nothing on get a battery
Le Mans Master
Joined: Jul 2007
Posts: 5,043
Likes: 8
From: Tampa Florida
as it states i am losing cranking power if the car doesnt run for over 14 hrs any clue?? thanks for the help
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
Le Mans Master
Joined: Jan 2008
Posts: 7,030
Likes: 10
From: Edmonton, Alberta
as it states i am losing cranking power if the car doesnt run for over 14 hrs any clue?? thanks for the help
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
also any recommendation for injectors and the size no mods but axle back exhaust and it will have a cut airlid and possible port match intake manifold
also it hesitates when cold all spark plugs and wires are replaced getting a distributor and rotor in a little bit and a fuel filter? all help is appriciated
when you have a chance
Jim
Burning Brakes
Joined: Oct 2005
Posts: 824
Likes: 30
From: San Pablo California
Im my case on my 87, it turned out that the 2 under hood lights were remaining on after the front clip was let down.
Removed the light bulbs and problem cured...
One another thing after the battery has been recharged, try removing one of the battery cables then touching it to the post of the battery.
If you see an arc, you have a open circuit or short some where within your system.
Removed the light bulbs and problem cured...
One another thing after the battery has been recharged, try removing one of the battery cables then touching it to the post of the battery.
If you see an arc, you have a open circuit or short some where within your system.
Last edited by Jim McCombe; Nov 21, 2008 at 04:35 PM.
Team Owner
Joined: Mar 2001
Posts: 54,124
Likes: 30
From: Cincinnati, Oh USA
Partial Quote from Jim McCombe:
One another thing after the battery has been recharged, try removing one of the battery cables then touching it to the post of the battery.
If you see an arc, you have a open circuit or short some where within your system.[/QUOTE]
It is normal for a spark to occur when reconnecting the battery, there are many bypass capacitors that draw a current pulse when reconnected, also the courtesy lights come on and they draw several amps. A spark does not necessarily mean that excess leakage current is occurring. Also, if you had a short, you would blow a fuse.
If you measure the leakage current, it should be less than 50 milliamps and 50 ma. would take 83 days to discharge a battery. My 87 draws 27 ma. and I have no battery problems.
One another thing after the battery has been recharged, try removing one of the battery cables then touching it to the post of the battery.
If you see an arc, you have a open circuit or short some where within your system.[/QUOTE]
It is normal for a spark to occur when reconnecting the battery, there are many bypass capacitors that draw a current pulse when reconnected, also the courtesy lights come on and they draw several amps. A spark does not necessarily mean that excess leakage current is occurring. Also, if you had a short, you would blow a fuse.
If you measure the leakage current, it should be less than 50 milliamps and 50 ma. would take 83 days to discharge a battery. My 87 draws 27 ma. and I have no battery problems.
8th Gear
Joined: Sep 2008
Posts: 8
Likes: 0
My 95 is discharging the battery if left for more than 2-3 days without running. At first I thought it could be a bad battery, bought the most expensive, premium 84 month battery, and it happened again, dead as a hammer in two days, replaced that battery and still have the same problem. So I disconnected the negative terminal, let everything power down for about 15-20 mins, then connected a meter and I have a constant 85 milliamp draw, then took out/ replaced all fuses in interior,then both groups of maxi fuses beside the battery, as well as took the wire off the alternator, still about an 80-85 milliamp draw, can anyone help?? This little demon is evasive. Thanks in advance, Brian (brinikprice)
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Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
My 95 is discharging the battery if left for more than 2-3 days without running. At first I thought it could be a bad battery, bought the most expensive, premium 84 month battery, and it happened again, dead as a hammer in two days, replaced that battery and still have the same problem. So I disconnected the negative terminal, let everything power down for about 15-20 mins, then connected a meter and I have a constant 85 milliamp draw, then took out/ replaced all fuses in interior,then both groups of maxi fuses beside the battery, as well as took the wire off the alternator, still about an 80-85 milliamp draw, can anyone help?? This little demon is evasive. Thanks in advance, Brian (brinikprice)
Last edited by pcolt94; Nov 25, 2008 at 03:50 PM.
8th Gear
Joined: Sep 2008
Posts: 8
Likes: 0
Ok, I will give this a try this weekend, thanks so much for the advice, now if I only knew what a fuse link was. I think you have the right idea about a relay being stuck open or the headlight power, just have to take some more time to try these out. Also any idea where to unplug the ccm or the abs? not sure where the relays are either, this is my first corvette, I am in love with it, just have to figure this out, this site is great. Thanks for the help, also I plan on buying a Factory Service Manual (s) not found any under 160 yet.
Brian
Brian
Instructor
Joined: Jul 2004
Posts: 210
Likes: 0
From: Lakewood CO
May want to check the starter too. A friend had a Chevy pickup where the starter worked but it was draining the battery. Pull the cable off the starter and see if the power draw is still there
Dave
Dave
