Cub Cadet Challenger 400LX Operation Manual - Page 19

Problem Engine runs unevenly Engine overheats Engine knocks Engine loses power Starter does not work Starter cranks slowly Battery light comes on when engine is running Vehicle will not move Cause(s) 1. Loose electrical connections. 2. Choke (if equipped) or throttle cable sticking. 3. Fuel line or fuel filter plugged. 4. Stale or dirty fuel. 5. Improper fuel. 6. Air cleaner element plugged. 7. Carburetor not adjusted correctly. 8. Spark plug is fouled. 1. Air cleaner element missing or plugged. 2. Carburetor air intake tube plugged. 3. Engine oil low. 4. Engine operated too long at slow engine speed. 1. Stale or low octane fuel. 2. Engine overloaded. 1. Engine overheating. 2. Too much oil in engine. 3. Faulty spark plug. 4. Fuel supply being restricted. 5. Fuel filter plugged. 6. Fuel line pinched or kinked. 7. Fuel pump output not adjusted to specification. 8. Improper fuel. 9. Air cleaner element plugged. 1. Loose or corroded connections. 2. Low battery output. 3. Dead or Faulty battery. 4. Faulty starter. 1. Low battery output. 2. Dead or Faulty battery. 3. Engine oil too heavy. 4. Loose or corroded connections. 1. Low engine speed. 2. Faulty voltage regulator. 3. Faulty battery. 4. Faulty alternator or loose alternator belt. 5. Damaged wiring harness 1. Shift Lever still in Neutral. 2. Parking Brake is still set. 3. Broken or cut drive belt. 4. Safely check to see if the vehicle will go in Reverse and then try to go Forward. If vehicle still will not move forward, contact your nearest Cub Cadet dealer. Section 7 - Troubleshooting 19