Hi

A couple of tests can be performed to ensure you have current carrying capacity through the negative circuit of the system. The time involved to perform these tests should be < 30 minutes. If you have a digital multi-meter you can perform the tests. You may need to perform the same tests on the positive side but we’ll focus on the negative side for now.

1. Voltage drop test between battery negative post and the body ground. Pick a location other than the cable anchor point.
Meter--positive lead to post, negative lead to body

2. Voltage drop test between the battery negative post and the engine ground. The lifting eye on the front of engine is good.
Meter--positive lead to post, negative lead to engine.

Criteria:

Fuel Pump(s) disabled
Starter motor operating/demand

Test Results:

< 500mV

Keep us informed!


positive lead to post positive lead to post