Question about 1994 Pontiac Sunbird
Most likely you have a parasitic draw. The first thing I would suggest doing is getting a test light and disconnecting the negative and put the test light in line with the negative battery cable. The test light should be illuminated if there is a draw. Go to fuse boxes and start pulling fuses one at a time until the light extremely dims down or goes out.At this point you will know which circuit is causing the excessive amperage draw. Then we can find out what components are on that circuit and possible figure what exactly is causing your draw.Unfortunately there is no easy solution to this and it is a tedious process.Just as a side note I would focus on anything that wasn't stock in the vehicle such as radios,radar detectors and aftermarket devices first. When you find the the fuse that either puts the test light out or dims it severely please let me know so we can move to the next step of locating the component that has failed or is failing on you.
Posted on Nov 09, 2010
First make sure both new battery and alternator are good from the start,then when the vehicle is parked for the day/night,remove the battery cable,till next usage,if its then starts o.k. then you have a parasitic drain in the system,i.e. brake lights on all the time,interior dome light on,even the vehicles e.c.m. can glitch and not go into what is refered to a deep sleep when the vehicle is shut off and this will drain a battery over night,after this try removing relays and fuses in the electrical system till you see a small spark when you remove/replace the fuse/relay and this could be an indication of a branch circuit drain i.e. an engine fan not shutting off(if the fan is operated by electricity from the vehicle)or something that is controlled by the ignition key isn't going off with the key when you shut off the vehicle
Posted on Nov 10, 2010
I'm NOT a mecanic, but.. one thing to check is the light in glove box. Try to see that it goes out when closed. Same for trunk and under hood lights if you have them.
Posted on Nov 09, 2010
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Posted on Jan 02, 2017
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