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How to Troubleshoot a John Deere 332
How to Troubleshoot a John Deere 332. John Deere's 332 riding lawn mover has a 16-horsepower diesel engine with a long life if treated properly. If your 332 isn't functioning correctly, perform troubleshooting steps in the right order to find the cause of your problem. You should be equipped to handle some types of repairs; if not, find the nearest...
John Deere's 332 riding lawn mover has a 16-horsepower diesel engine with a long life if treated properly. If your 332 isn't functioning correctly, perform troubleshooting steps in the right order to find the cause of your problem. You should be equipped to handle some types of repairs; if not, find the nearest John Deere outlet for a repairman.
Things You'll Need
Screwdriver set
Socket set
Wire brush
Voltmeter
Air compressor
Check for battery problems. Try to turn on your 332 with your transmission in neutral and the power take-off disengaged. If it's not turning over at all, check your battery connections. Remove the negative lead and then the positive lead to your battery and scrub the posts with a wire brush. Reconnect the leads -- first, the positive and then the negative. Try to turn the engine on again. If still not powering on, use a voltmeter to gauge the voltage being produced by the battery; it may have a bad cell. Also, check for cracked or damaged wiring leading to or from the battery.
Open the fuse box door under the ignition assembly by raising the two side levers and lowering the cover. Check for bad fuses. Use the manual in the Resources section to identify fuses that may be blown. Pull a fuse from its socket and identify whether it's blown by seeing if the metal connector at the top of the fuse is broken. If you find one or more blown fuses, this could indicate the need for a part(s) replacement.
Inspect the rest of the engine, once it's starting. Make sure you've used diesel fuel. Open the hood and remove the two latches -- one on the top, the other on the bottom -- that will release your air filter canister cover. Remove the cover and then remove the air filter. Replace the filter if too dirty to clean with an air compressor. Look for any leaks under the engine that would require a replacement part. When the engine is cold, check the engine oil and coolant. Both are equipped with easy to reach dipsticks. Replace the coolant with a 50/50 mix of coolant and water.
If your engine knocks or is overheating, this could indicate that your engine oil or coolant is low, a belt is malfunctioning, or a faulty radiator or other part is causing damage. See a technician for a full diagnostic test.
Inspect your running lights. Turn on your lights and see which ones work and which don't. Disconnect the negative lead to the battery, then replace the light by unscrewing the clear plastic cover on the light and twisting off the old bulb counterclockwise. Insert the replacement bulb clockwise. Replace the covers.
Drive your 332 to test the drive train, steering and mowing functions. Sluggish operation, excessive vibrations or steering difficulty could signal the need for part replacement. See your John Deere technician for a diagnostic test.
Compare any error code that may appear on your 332 display with the code chart on the last page of the Troubleshooting guide in the manual in the Resources section.
