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My car 2005 yukon denali wont start. It makes a clicking

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sound and when i leave...
My car 2005 yukon denali wont start. It makes a clicking sound and when i leave the key in the ignition i hear a faint sound similiar to a heartbeat and my radio and temp on rearview mirror pulse/flash to the sound. I tried jump starting my vehicle from another and nothing but the click, click click sound. The multimeter I have reads 11.69 from the battery terminals. Please help!
Alexis
Submitted: 1 year ago.Category: GMC
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Answered in 4 minutes by:
9/19/2016
GMC Mechanic: roybelding, Master Tech/Trainer replied 1 year ago
roybelding
roybelding, Master Tech/Trainer
Category: GMC
Satisfied Customers: 6,330
Experience: 35 years of retail operations on all vehicles
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good afternoon my name is ***** ***** I will assist

your battery is very low at 11.6. should be 12.6 volts. it may not take a jump from the battery failure internally.

I would start by replacing the battery and then have the charging system checked to be sure the alternator is ok.

Roy

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GMC Mechanic: roybelding, Master Tech/Trainer replied 1 year ago

are you there

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GMC Mechanic: roybelding, Master Tech/Trainer replied 1 year ago

please dont forget to rate me as it is the only way I get paid for my efforts

Roy

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Customer reply replied 1 year ago
Its not the battery. I had the battery recharged to 12.5 and it worked for a day. The next day it wouldnt start and was drained again to 11.6. Today it was drained again after being recharged yesterday to 12.5. Which components do i check besides the alternator?
Customer reply replied 1 year ago
Todays voltage of my battery is reading 9.2
GMC Mechanic: roybelding, Master Tech/Trainer replied 1 year ago

the alternator is where you start. also, have the battery load tested to be sure it is not shorted internally.

Roy

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GMC Mechanic: roybelding, Master Tech/Trainer replied 1 year ago

how are you making out

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roybelding
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