Battery dies randomly alt works and batt holds charge after being on a charger and passes a load test.right before it dies my gauges all spike. ive checked for draws and cant find any ive also checked all fuses and all are fine im at a loss this is my only car and im stuck for getting to and from work without it please if anyone can help feel free to email me what you might think it is. ([email protected]) hope someone can help me
I believe the voltage regulator is an integral part of this generator, and it is probably causing the problem. I would try replacing the generator.
SOURCE: Charging system malfunction under load
If the condition is present for short times only it will not affect
anything. It's possible that the crank pulley is glazed and slipping
slightly on a hard pull (everything else depends upon that pulley to be
properly driven) You can't really duplicate that on a static test.
It's also possible that the battery was a bit low when you bought it
and needs to have the charge level topped off with an external charger.
Otherwise, the only option I can think of offhand would be to obtain an
alternator designed for heavy duty service (police version etc) which
may be able to deal with the demand.
As your vehicle gets older, resistance in all circuits increases,
making little difference during normal operation but can also influence
how your vehicle charges. Cleaning / adding additional ground points
can help with this.
If it seems that I'm jumping around a bit, I am, but since the charging
system is pretty much operational except at that one point, I'm trying
to give you some ideas that either in combination, or one alone will be
of some help to you.
good luck
SOURCE: 1989 Chevy S10 Blazer won't start unless I pour fuel in the TBI.
Fuel pressure regulator. It regulates the fuel pressure you receive going to the injectors. All the injectors would not be bad, so you have to take a step back to the next component, which should be the regulator.
SOURCE: battery not charging. had alt tested and it
check the big wire that goes to the fuse box under the hood. there is one that goes from the batery across the radiator shroud. then them. also check the ground from the engine block to the firewall its flat with no coating.
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