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Battery
Toyota MR2 MK2 Turbo - battery keeps draining
recently had my alternator done but the only problem is that the battery still goes flat and when its close to running out all the warning lights come back on. I know that replacing the alternator has done something because it has stopped the warning lights from being on all the time. can any one help? - Fix/Recommendation
Fix / Recommendation submitted by rob - stungbythebug@yahoo.com on 11/04/2004
there is a simple test to tell if your car is draining the battery or your battery is bad. make sure you dont have one of those security radios which require a code after disconnecting the power or at least know the code. Disconnect the negitave lead from the battery and then touch it to the terminal. If it arcs your car is draining the battery if not the battery is bad. Once you have established that it is the car isolate one component at a time by either pulling fuses or disconnecting wires (like your alternator). Repeat the first step until you no longer get an arc. you should be pretty close to finding your problem then.
Fix / Recommendation submitted by J fix - J fix @tesco.net on 13/05/2007
I had the same problem , I changed my alternator £110 and also bought a new battery £45 cleaned up some electric points and now its all fine so i fitted a induction kit and it sounds and runs sweet ,It is good not to see any warning lights on my dash and to know i have confidence .
Fix / Recommendation submitted by x - x on 16/01/2009
Sounds like the voltage regulator has gone mate
Fix / Recommendation submitted by x - x on 16/01/2009
Sounds like the voltage regulator has gone mate
Fix / Recommendation submitted by darryl - dmohan07@talktalk.net on 06/04/2009
i had the same problem mate ,,changed the alternator and every thing ,and still went dead ,the i by mistake blowen the clock/radio fuse ,so went looking for it and then i decided to check all my fuses and found the (ecu-ig)fuse in the engine bay waz blown ,so i changed it the started it and found the battery waz keeping the charge now ,i done that 3 weeks ago an still no problem ,so check it out to c if it helps it did for me ,,,,
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