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2002 Deere 420 compact Tractor. Battery was installed

Customer Question
2002 John Deere 420...

2002 John Deere 420 compact Tractor. Battery was installed backward. was able to narrow down a fried relay and replaced( It was fuel solenoid relay) After replacing relay, the starter turned over as normal, but it would not start ( seemed like something wasn't firing) after a few seconds trying to start, everything went dead again. Where to start diagnosing issue?

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts.

Ok

Submitted: 1 year ago.Category: Agriculture and Farm Equipment
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Answered in 1 hour by:
2/27/2021
Mechanic: Curtis B., Technician replied 1 year ago
Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 7,036
Experience: Technican turned service manager on multiple lines of equipment and rental equipment.
Verified

Hi,let's see if we can work together to get to the root of your problem! I will try my best to help!

Is this a 420 garden tractor or a 4200 compact? 420 tractor was made in the 60's

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Customer reply replied 1 year ago
4200
Mechanic: Curtis B., Technician replied 1 year ago

OK. Do you have a voltmeter to test with? Do you have at least 12.5 volts to the positive battery connection on the starter? Do you have the same voltage to the fuse panel?

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Customer reply replied 1 year ago
I have a meter
Mechanic: Curtis B., Technician replied 1 year ago

And what are the readings?

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Curtis B.
Curtis B.
Curtis B., Technician
Category: Agriculture and Farm Equipment
Satisfied Customers: 7,036
7,036 Satisfied Customers
Experience: Technican turned service manager on multiple lines of equipment and rental equipment.

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