The voltage drop test will tell us if the starter motor is receiving the full amount of voltage and amperage to turn over the engine. During a starter current-draw test the following results were noted: Voltage—9.4 volts. Besides a substantial coating of oil on the starter which was no benefit to the contacts, the tech also found a broken insulator which presumably was the primary issue. 1990 Dodge Grand Caravan, 3.3L Three weeks ago, I had the starter rebuilt locally by a shop I’ve used confidently for years, most of their business is rebuilds like this. What are you using to measure the amperage draw? Technician A says the test results indicate that the battery may be defective and should be tested. This video will show you how to use a multimeter to check volts going from the battery to the starter, and use an amp meter (don't use the multimeter for this part!) This is where the positive battery cable is attached to. The inductive ammeter starter gauge is very useful for measuring starter current draw. So you've done nothing but cost yourself a lot of time & money. This circuit is represented by the number 1 in the photo. Gear reduction starters will draw … The specifications for the maximum current draw are 180 amps. Higher compression engines will draw more current. tractor starter doesn't draw 500A; it probably doesn't draw 150A, and it's still not worth fusing. Usually for a four cylinder starter the current draw will be about 120 amps. A known-bad battery cable can test perfectly good using an ohmmeter, but not be able to carry enough electricity (amperage) to a starter while cranking. Have the batteries tested with a digital tester (Some auto parts stores will test them for free for you). Also depends entirely on the starters nominal power rating: eg, the 12v Toyota/Jeep starter is rated 12KW (1200 watts) for "typical" operation. The starter system is simple, and the checks on it are straightforward. Starter current depends entirely on load (test): no-load (free spinning on the bench) draws the least, stalled (prevented from turning) draws massive quantities. If the starter does not turn the engine although the car battery is in good condition, the fault may be a simple mechanical one or it may be an electrical one in the starter-motor circuit. Same for the truck - … to check the amps at the starter. If the load test fails, then individually test each battery and replace any faulty ones. STEP 2 - Perform a voltage drop test: Once batteries pass muster, then perform a voltage drop test on the starter main cables. And no: a 92hp 4-cyl. A six or eight cylinder will draw up to about 250 amps. • Starter amp draw will be high until the starter motor reaches maximum RPM • Cranking longer than 10 or 15 seconds will overheat the starter • Starter motors that crank slowly lead to starter … Current draw—363 amps. 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