Slow cranking but car is fine after it starts?

[Asher1337]

Hi all, having problem with starting. Car cranks for an extended period before kicking over. (Mazda 3 MPS 2006)


If the engine is on, then I turn it off and quickly on again will kick over normal the second time, always seems to be first time after it's been sitting for a little bit.


I have a new battery, fuel pump, pressure is fine, checked the earths. Car has done 80 000 k's and is very well maintained.


Any other ideas what it could be?


(Other things that come to mind is spark plug leads, connection between battery and ignition, starter motor, ignition....possible connection provlem)


Thanks for help

[TD]

I know mine does that when the battery terminals are a little loose, could be worth a look.

[Jrbris]

check battery and the terminalis as dan said .. your battery could be dieing..

[lup15]

he mentioned new battery, but maybe the new battery is a dud?

[guitar69]

he mentioned new battery, but maybe the new battery is a dud?

Sure, but if the terminal connections aren't tight, it may still not crank properly.

[Jrbris]

put a battery tester on it, id even do a alternator test.

check the cells are filled to the full line on the battery and ensure the battery has not boiled over. DO NOT OVER FILL the battery.

Failing that put a multimeter on the battery and start the car and see what voltage dipyou get and amps.

[lup15]

Sure, but if the terminal connections aren't tight, it may still not crank properly.

the terminal loose theory does not support why it works the second time round. it sounds like the battery isn't holding its charge. maybe there is an electrical drain somewhere?

[bd581]

Define "new" battery
Week old, month, year?
And don't forget, the battery could have been sitting around in the shop for a while.

Check water as mentioned. Also clean the terminals.

If its slow on the first start but ok after, without doing a proper test, it sounds like the beginning to every failed starter motor I have had in various cars.

[Asher1337]

Thanks for replies, pretty good feedback

Had this problem on a relatively new battery which I bought the car with...then bought a brand new battery a couple days ago, it's heavy duty official mazda battery and dry cell, after a battery test output is pretty much full

Starter motor could be possibility, thinking back I had a similar thing happen with Mazda 323 and it was the starter motor which went eventually

Pretty sure battery terminal is tight, but will check it just incase

[IceValk85]

these beasties use coil on plug, so there wont be any spark plug leads causing issues :P

Ice