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'94 Chevy S10 won't start
My '94 Chevy S10 will not start, and previously when it did start the engine
would turn over very hesitantly before running. I am assuming the starter motor is bad, and the battery may still be good since all the lights turn on. Would I be able to check the starter motor's functionality, and if so, with a multimeter? Also, can I replace the starter motor myself, how? |
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'94 Chevy S10 won't start
Nadeem wrote: > My '94 Chevy S10 will not start, and previously when it did start the engine > would turn over very hesitantly before running. > > I am assuming the starter motor is bad, and the battery may still be good > since all the lights turn on. > > Would I be able to check the starter motor's functionality, and if so, with > a multimeter? Also, can I replace the starter motor myself, how? First thought is to tap on the starter housing with a hammer while someone attempts to crank the vehicle. If it starts immediately, then you know the starter is shot. regarding your testing question: Using an inductive current meter such as the kind that plug into a DVOM, you could measure the peak and average current draw of your starter when cranking. A high current reading, like above 200 amps, would point to a bad starter motor winding -- or a serious engine problem. You can put a breaker bar on the front crankshaft bolt and attempt to turn the engine by hand to determine if the engine is spinning freely. You could also measure battery voltage while cranking. If it is dropping below about 9 volts then the battery should be charged/tested and replaced if necessary. Even a shunted starter wouldn't draw a fresh, fully charged battery down to extremely low voltage for the first few seconds, so this is a cheap and relatively accurate way to test your battery without a load pile device. Replacement: The starter is held in place with two 9/16" head (I think) bolts. Disconnect the battery first, then remove the two wires that go to the solenoid housing, making sure to remember their orientation. Next, remove the two large bolts. You may have to loosen the torque converter inspection shield if it is in the way of the starter. GM uses shims to set the distance between the starter drive gear and the ring gear teeth. Read the instruction pamphlet that comes with your new starter to understand how to select the correct shim. You should also get a packet of ~ two shims with the new starter. Toyota MDT in MO |
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