Cayenne GTS Starter Question - need 2nd opinion

[jamiepstewart]

I need a second opinion.  For the past 5 or 6 months, in the hot or cold, my Pepper would struggle to turnover, but only sometimes.  I was convinced the battery was on its way out.  I replaced the battery with an Interstate, then I hooked it up to a trickle charger to make sure it was fully charged.  Turned the key and the exact same problem. It got much worse over the past few days (prior to the new battery install).  Its now in my garage, thankfully, and when I turn the key, it almost seems like the starter is seized and wont turn-over even the slightest bit.  It clicks for a second then seems to suck all the life from the battery and nothing.  

 

I cannot think of any other culprit other than the starter.  I've been the 'Valley of Coolant' before, so its not a major worry to get at it.  Just want a second opinion.  Oh, and anything else I should update / mod while I have it apart?  I have a new thermostat, (water pump is already new), plugs, coil packs will be done when I have it apart.  

 

Thanks!

[Ahsai]

It sounds like it since you have a brand new battery. The other possibility is corroded cables that you can do some voltage drop tests to confirm or rule out.

http://www.freeasestudyguides.com/voltage-drop-test.html

 

Note the test probe needs to contact the battery posts and not the cable terminals. The readings are taken when you try to crank the engine.

Edited April 29, 2015 by Ahsai