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Grand Cherokee Srt8: My Grand Cherokee SRT8 2007 won't start,

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My Grand Cherokee SRT8 2007...
My Grand Cherokee SRT8 2007 won't start, when i turn the key, all i hear is a klack klack and i get a trouble code U1412 Unknown. What could that be?
Submitted: 3 years ago.Category: UK Car
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Answered in 10 hours by:
6/2/2015
UK Auto Mechanic: sprinkles08, ASE Certified Technician replied 3 years ago
sprinkles08
sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 23,983
Experience: ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
Verified
Hello and welcome to JustAnswer!

U1412 is a vehicle speed signal issue and won't be related to the no start condition.

The no start could be a handful of things including the starter itself, a cable or connection issue, low battery voltage, an engine mechanical issue; one of the most common things I've seen on these is voltage drop between the starter solenoid terminal and wire at the crimp.

Are you getting a rapid clicking that happens the whole time the key is held in the crank position?
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Customer reply replied 3 years ago

hi, thanks for that and no it's a slow clicking.

UK Auto Mechanic: sprinkles08, ASE Certified Technician replied 3 years ago
Is it a single click that happens each time the key is turned to the crank position, or does it continue to click while the key is held?
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Customer reply replied 3 years ago

it continues to click.

UK Auto Mechanic: sprinkles08, ASE Certified Technician replied 3 years ago
You most likely just have a dead battery then. I would recommend trying a jump start (not always reliable ),swapping in a known good battery, or having this battery load tested.
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Customer reply replied 3 years ago

ok thanks, ***** ***** try

UK Auto Mechanic: sprinkles08, ASE Certified Technician replied 3 years ago
You're welcome!
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