Question about Chevrolet Cavalier
I am having trouble with my electrical charging system, my battery light stays on and for some reason it seems like its charging my battery a little but not enough to keep my car going.
It does point to a dodgy alternater as you should get a constant 13-13.5 volts charge even with lights etc on when engine running,i know you said you've had it tested but sounds like an intermitant fault so try a new alternator ,might just stop you going mad ! good luck
Posted on Mar 27, 2014
Testimonial: "yeah i been thinking that the whole time but just didnt want to spend the $170 to get a new one, but rather spend that then breaking down all the time. thanks you stephen_poll for your input. im taking the car to a car mechanic my dad knows and ill let you know what he says, if anyone else has anything to say on this ill be more than glad to read it."
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Posted on Jan 02, 2017
SOURCE: charging problem 1991 volvo 240
14.6 means your voltage regulator or diode is suspect Despite having new alternator .Ive cross refrenced your smptoms in the haynes workshop manual and alternator is your only end answer.The haynes test is to start vehicle with multi meter connected across the battery terminals,increase the engine speed until the reading remains steady should be approximately 12 to 13v and no more than 14v.switch on as many accessories as possible(headlights heater blower radio etc)check that the alternator maintains the regulated voltage at around 13 to 14v.If the regulated voltage is not as stated then alternator is to be repaired/replaced.Good luck with it and a happy new year.
Posted on Dec 29, 2008
if you removed the dome lightbulb then there is no longer a draw from the battery there but if the ashtray light light does not go out then over a period the battery will go dead or drained to the point to not the vehicle
Posted on Mar 05, 2009
check battery voltage when you turn off car. it should be 12.5 volts.if drops 11.0 volts the battery is got a weak cell in it.i bought a sears die hard battery it last 2 years the battery had a defect .it had a bad cell it short out the battery.check alternator wires for defects.
Posted on May 29, 2009
If the battery and alternator tested fine. I would have the charging system rechecked when engine is hot and at high rpm's. This way the checks are being done as if you were driving and driving for a long time. Alternators can work fine when cold but weaken when hot or stop working. This problem is not rare but only is seen occassionly. Unless it was checked at an electrical shop the average shop doesn't run these tests for they don't see the problem often enough to automaticly run them at all times. Good luck and let me know how you make out.
Posted on Sep 21, 2009
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