troyzakp60 Posted August 24, 2011 Share Posted August 24, 2011 okay so quite a while ago my car was paying up with starting due to and electrical promblem an still is at the moment the only info i have right now is. i have to push or jump start my car to start.i go for a long drive as soon as i turn car off and go to turn it on again it wont start and reads about 11 n a but volts.i thought i had a drain but sorted that cause i now can leave my car over night and will have that 11 n abit volts. also when i go to crank it over is goes from 11 n abit to nothing. what could problem be.battery?alternator? cheers troy Quote Link to comment Share on other sites More sharing options...
slacker.cam Posted August 24, 2011 Share Posted August 24, 2011 Where are you measuring the voltage? Straight on the battery posts? What voltage do you measure on the battery posts when the car is running? It's one of only 3 things. Battery, alternator, or wiring. We can isolate the problem pretty easily. Quote Link to comment Share on other sites More sharing options...
troyzakp60 Posted August 24, 2011 Author Share Posted August 24, 2011 i have a volt gauge.but also ran it accross the posts with a volt metre and it when its running is a high 13 Quote Link to comment Share on other sites More sharing options...
fuel Posted August 24, 2011 Share Posted August 24, 2011 sounds like the battery.. Quote Link to comment Share on other sites More sharing options...
Beaver Posted August 24, 2011 Share Posted August 24, 2011 faulty starter solenoid? drawing all the current/voltage when trying to start? Quote Link to comment Share on other sites More sharing options...
troyzakp60 Posted August 24, 2011 Author Share Posted August 24, 2011 how do i test for these things?say my alternator was stuffed what would be happenign then ? Quote Link to comment Share on other sites More sharing options...
fuel Posted August 24, 2011 Share Posted August 24, 2011 I would say the fact that it can be jump started fine suggests that it is the battery. It is probably one bad cell not carrying enough current to crank over, yet just enough to power the dash lights and headlights. Quote Link to comment Share on other sites More sharing options...
fuel Posted August 24, 2011 Share Posted August 24, 2011 how do i test for these things?say my alternator was stuffed what would be happenign then ? If your alternator was stuffed you would probably not be seeing 13.5ish volts on idle, it will either be much less (not producing current) or much more (regulator stuffed). The regulator could also be shorted internally causing a high current drain when the engine is not running, but you would notice that the volts would die off over-night. Quote Link to comment Share on other sites More sharing options...
84_S12 Posted August 24, 2011 Share Posted August 24, 2011 Get a new battery dude, sounds like it's dropped a cell. At rest the voltage shouldn't be below 12.5 VDC Quote Link to comment Share on other sites More sharing options...
troyzakp60 Posted August 24, 2011 Author Share Posted August 24, 2011 right ill give my battery a good charge then test it or test it as it is now? Quote Link to comment Share on other sites More sharing options...
84_S12 Posted August 24, 2011 Share Posted August 24, 2011 Your battery won't charge dude, that's why you're getting 11 VDC straight after switching off. Get a new one, or at least a second hand one that is ok, then continue working your way back to the charging system. Quote Link to comment Share on other sites More sharing options...
troyzakp60 Posted August 24, 2011 Author Share Posted August 24, 2011 okay man, mean as cheers for the help guys Quote Link to comment Share on other sites More sharing options...
84_S12 Posted August 24, 2011 Share Posted August 24, 2011 WHen you've replaced the battery, best double check for a current drain to be sure as the new one will die very quickly if it gets drained repeatedly to 0VDC. Let me know if you need a hand to be able to do this Quote Link to comment Share on other sites More sharing options...
troyzakp60 Posted August 24, 2011 Author Share Posted August 24, 2011 sweet man ill try that out an see how it goes Quote Link to comment Share on other sites More sharing options...
phtmbl Posted August 25, 2011 Share Posted August 25, 2011 before you get a new battery, start car test volts = x turn on hazzards, heater, headlights hold revs around 2500rpm test volts = y If volts with everything running is higher that x and is holding that i.e 14.1,14.2 14.4 may flucuate a little) then it is the battery. If y is the same as x or lower it is not charging Quote Link to comment Share on other sites More sharing options...
slacker.cam Posted August 25, 2011 Share Posted August 25, 2011 It's going to be the battery. They like to die around this time of the year due to cold. Don't bother charging it and/or testing it. Once they're gone, they're gone. Just buy a new one and be happy Quote Link to comment Share on other sites More sharing options...
Steelies Posted August 25, 2011 Share Posted August 25, 2011 corroded terminals and dodgy earthing always get me. Quote Link to comment Share on other sites More sharing options...
BlownCorona Posted August 25, 2011 Share Posted August 25, 2011 you can bring it into supercheap auto and get me or jack (or anyone) to test it if your worried, we have a test rig there Quote Link to comment Share on other sites More sharing options...
slacker.cam Posted August 25, 2011 Share Posted August 25, 2011 corroded terminals and dodgy earthing always get me. Yeah that's a good point. If the terminals are corroded then that could be your issue. Unlikely to be an earthing problem if it jumps all good. Quote Link to comment Share on other sites More sharing options...
Spencer Posted August 25, 2011 Share Posted August 25, 2011 Battery, sure you can test the charging system as above, but I'll bet it needs a new battery Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.