Hello everyone, I need a little help and some advise...Ive been having problems when starting my car, sometimes it may take up to 20 mins to get it going especially leaving it overnite..when trying to start i can hear a noice coming from the starter motor like a loud click but car dont start follow by a quick rattle sound closer, im sure my battery is fine..is this the sign of starter motor issue?any help would be greatly appreciated.

Sounds like it could be starter motor or starter solenoid. Try tapping the starter motor with a spanner or something before starting it, sometimes works as a temporary measure to get it going

Sounds more like the battery is either on it's way out or pretty near flat - the quick way to check if it is your battery if you don't have a multimeter is to switch on your headlights just before you try and start - if they dim to yellow when cranking it probably is the battery....but then you need to figure whether it's on it's last legs or just discharged.
Another possibility is that something is draining the battery overnight - like the boot light or glovebox light left on....either of these will cause the battery to lose charge.
Also the battery terminals need to be clean and tight and not get warm/hot when cranking.
The above are the cheap easy things to check...if they're OK then its onto starter motor etc when you start spending $$$$.
Good Luck.

so after the click and rattle, it eventually turns over? i would start by cleaning he batter terminals. hot water will do this.

I'm with Bellto on this.
Get the car started and then feel if any of the battery terminals is hot.
Another clue will be heaps of salt type crystals around the battery terminal.

Best thing to do is to totally undo, clean with sandpaper, wire brush or a penknife. Bolt up with some spray grease or vaseline.
Gerry

got a multimeter today and tested battery and starter motor with engine off, they both came up as 13, I got a yellow top battery 750cca, my sistem has touch screen head unit, dual sups, 2 amplifier, capacitor, 4 dvd screen...i can watch a music video with everything going for over 15 mins, would that mean the battery should have enough power to start the car 1st time everytime?or is it time to look at the starter motor?like connections or take it off and clean it, how would i go bout taking it off anyway?do i have to go underneath or can take it off from the bonnet area?

If it still starts after after twenty minutes of trying, it is not your battery, connections maybe.
Hot water is not enough, Bi Carb Soda (base) and warm water will neutralize any acid (alkalines) build up to stop leaking across the battery. It fun to watch the white crap dissolve away, Rinse well, the residue is salt and water.......
Then clean all connections...As per Spud....Check starter power lead too....
But it sounds like the starter....

Youtube vids are awesome for this kind of problem....

As the starter cranks the flywheel, thats attached to the crankshaft...These are underneath.....

It's likely your starter, where are you located?

just moved to Blacktown NSW

got a multimeter today and tested battery and starter motor with engine off, they both came up as 13, I got a yellow top battery 750cca, my sistem has touch screen head unit, dual sups, 2 amplifier, capacitor, 4 dvd screen...i can watch a music video with everything going for over 15 mins, would that mean the battery should have enough power to start the car 1st time everytime?or is it time to look at the starter motor?like connections or take it off and clean it, how would i go bout taking it off anyway?do i have to go underneath or can take it off from the bonnet area?

You say you got 13V on the battery with the engine off - that is too high and is probably due to you not removing the 'surface charge' from the battery before testing. To do this turn your headlights on for about 3 mins...then turn off and check with the multimeter - it should be about 12.6v. You must read the meter to the nearest decimal point.
Regarding all the electrical gizmos you have in the car - if one or more are wired incorrectly they can drain the battery overnight which you say happens in your first post. This is very easy to do if you wire something incorrectly into the battery circuit instead of the ignition system. Also you will find that running all the electrical gizmos for 15 mins is nowhere like what happens when the starter is turned on as the starter requires probably 400amps to turn over whilst the gizmos require about 20amps.
My advice FWIW is as before - check the battery first - here is a good link on doing just that: http://www.howtocleanstuff.net/how-to-clean-car-battery-terminals/

I sprayed the connections around the starter motor yesterday afternoon with wd40 as there was oil over it from a oil leak somewhere, been like that for a while, started the car 1st go twice an hour later, got up this morning to drive my girlfriend to the train station and it started 1st go instead of the usual stuffin around, I have a feeling that mite have been the problem and its a great relief when it starts 1st attempt and hopefully it stays like that...I mite just go outside and start it and see how it goes..brb..not good it took 3 attempt this time although the road was wet this morning and tried yesterday to tighten the connection on the soleniod coz i can wiggle it left and right but i got a spark so do i need to disconnect battery before doing this?Im positive its not battery related coz with my old battery ive flatten it with my system and yet i can stil start the car but only just and that was a much weaker battery

You say you got 13V on the battery with the engine off - that is too high and is probably due to you not removing the 'surface charge' from the battery before testing. To do this turn your headlights on for about 3 mins...then turn off and check with the multimeter - it should be about 12.6v. You must read the meter to the nearest decimal point.
Regarding all the electrical gizmos you have in the car - if one or more are wired incorrectly they can drain the battery overnight which you say happens in your first post. This is very easy to do if you wire something incorrectly into the battery circuit instead of the ignition system. Also you will find that running all the electrical gizmos for 15 mins is nowhere like what happens when the starter is turned on as the starter requires probably 400amps to turn over whilst the gizmos require about 20amps.
My advice FWIW is as before - check the battery first - here is a good link on doing just that: http://www.howtocleanstuff.net/how-to-clean-car-battery-terminals/

13V is fine for a yellowtop, they are a very strong battery. It will take over an hour of stereo usage with amplifiers to get it to 12.6v... If your starter was that filthy it would not even start, I would suggest removing it, giving it a good clean, fixing whatever is leaking all over it, and reinstalling.

That sounds like the go Fluffy, I will make an attempt to take it off and clean it tomorrow and the leak is very not noticeable but builds up over time and it doesn't really have much affect on engine oil level but ill work on that after starter motor is sorted..I just hope its not a computer issue but got to start somewhere..wish me luck with taking starter motor off never done it before

no computers involved in the starter motor, and definitley disconnect the battery before playing with any electrical systems.

also, be careful spraying inflammable aerosols on electronics, because if you don't wait until it completely dissipates, the connection can spark and cause a fire. it happened to my battery, luckily i had a fire extinguisher in the car, because the battery split and really started going up. that was after waiting 20 minutes and giving it a wipe. just a word of warning.

thanks for the advise Bellto now im a little worried bout getting burnt lol, what i meant before is if it isn't the starter motor then is there a possibility that it mite be a computer module for ignition etc, had same trouble with my old falcon, thought it was starter motor but turn out to be the computer module on its way out.Ive done some search here and it could be electronic related if starter motor etc checks out good

so just to clarify. when you turn the key, and the car doesnt start, is it cranking over? (y/n)

because if it is cranking over, but just not firing, these cars can have issues with the bem, its something to do with the connection for the immobiliser, that tells the ecu to allow the car to start. they become coroded and will not allow the car to fire, but will crank all day long until the battery is flat. my friend in cairns had the same issue, every wet season, it would crank and crank but not start, then eventually it would fire and all was sweet until the car sat unused for a few hours.

if its not cranking, it is more than likely that your starter is pooched (as you said), just get a second hand one out of a wreck and chuck it in. its about a 10 minute job. probably on of the easier things to do on a magna, right up there with front spark plugs lol

when car doesn't start it makes 1 click sound from the starter motor area, it doesn't crank at all but when it cranks the car starts immediately, il give the starter motor a good clean and if that fails il check out the wreckers

when car doesn't start it makes 1 click sound from the starter motor area, it doesn't crank at all but when it cranks the car starts immediately, il give the starter motor a good clean and if that fails il check out the wreckers

yep definitley your problem. by the sounds of it, the solenoid is working, but the brushes are probably gummed up. i wouldn waste my time cleaning that starter, i would just go and get one off a wreck, it should come with 30 day warranty.

whats the easiest way to take the starter motor off?from underneath?or from bonnet area?

whats the easiest way to take the starter motor off?from underneath?or from bonnet area?

underneath.

BELTO"because if it is cranking over, but just not firing, these cars can have issues with the bem, its something to do with the connection for the immobiliser, that tells the ecu to allow the car to start. they become coroded and will not allow the car to fire, but will crank all day long until the battery is flat. my friend in cairns had the same issue, every wet season, it would crank and crank but not start, then eventually it would fire and all was sweet until the car sat unused for a few hours."

Umm this is sounding familiar to me. I just posted a thread on this kind of thing (did search first but didnt hit this comment)

Is there a fix? Suggestions what to do? Thanks in advance

BELTO

Umm this is sounding familiar to me. I just posted a thread on this kind of thing (did search first but didnt hit this comment)

Is there a fix? Suggestions what to do? Thanks in advance

Check this - sound like your problem with the fix: http://martybugs.net/articles/magna-stall.cgi