Question about 2004 Acura MDX

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Car wont start. is not the battery.

The MDX will not start. when I turn the ignition it makes a series of fast clicking noise, but does not start. it is not the battery since it is not the same when battery dies and it wont turn over. I also tried jumping it, but didnot work.
any ideas what it could be? this is a 2004 MDX.
thanks

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The clicking you hear is the starter solenoid trying to fire the starter. Generally an indication of loss of full power to the starter itself.
It can in fact be a bad wire to the starter, weak battery, dirty battery connections, etc. When in doubt try the horn. If it goes full blast look beyond the battery. Start at your battery terminals and clean them, checking the wires there as well for creeping corrosion. Then work your way to the starter connections checking for corrosion and dirt.
If all else checks out the issue is likely in the starter solenoid, internal connections. These wear with age and are replaceable on most Japanese vehicles.

Posted on Sep 13, 2009

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The continuous clicking is the starter solenoid dropping out when the starter motor draws current and drops the voltage. This voltage drop causes the solenoid to disconnect the starter, so the voltage rises and the solenoid clicks on again, which connects the starter and drops the voltage again. Typically, this is a weak battery, from age, or lack of water, or from corroded positive terminal surfaces. Clean the battery clamp, and make sure the battery terminal is soft lead, not crunchy corrosion, or if it is a screw terminal type, that the bolt can actually clamp the cable terminal. It may also be a corroded connection on the starter. It is not likely to be brushes, or the starter, unless you only get one click per start attempt.

Posted on Sep 14, 2009

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Sounds like it is your starter. The clicking is the solenoid trying to kick the starter on. How many miles are on the vehicle? I would remove the starter have it tested then go from there.
Thank you,
Lee

Posted on Sep 13, 2009

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Hello...
this is a very simple fault generally created by worn starter motor brushes and/or damaged or dirty commutator segments...

TO TEST THIS: GET SOME ONE TO TURN OVER THE KEY WHILE YOU TAP THE STARTER MOTOR WITH SOMETHING SUCH AS A 12" CRESENT...THIS IS A TEST YOU CAN DO WHERE YOUR VEHICLE STANDS

in simple terms if you pull the starter motor out, pull the brushes cap off the back of the starter, remove the sprung brushes, clean between the comutator segments and re-surface segments with wet and dry paper (800 grit) clean starter motor components with a non residue cleaner such as lektra clean or contact cleaner, fit new brushes...now refit starter....and voila it starts again

Posted on Sep 13, 2009

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