EM-2 ENGINE MECHANICAL - Troubleshooting TROUBLESHOOTING Problem Possible cause Remedy Page Engine overheats Cooling system faulty Incorrect ignition timing Troubleshoot cooling system Reset timing CO-2 EM-6 Engine will not crank or cranks slowly Starting system faulty No fuel supply to carburetor Carburetor problems Ignition problems Vacuum leaks • HIC line • PCV line • Intake manifold Compression low Troubleshoot starting system ST-2 Engine w ill not start/ hard to start (cranks ok) Check fuel line Troubleshoot fuel system Troubleshoot ignition system Replace as necessary Check compression FU-2 IG-2 EM-13 Rough idle or stalls Vacuum leaks • HIC line • PCV line • Intake manifold Ignition problems Carburetor problems HAl system faulty Engine overheats Compression low Repair as necessary Troubleshoot ignition system Troubleshoot fuel system Check HAl system Troubleshoot cooling system Check compression IG-2 FU-2 CO-2 EM-13 Engine hesitates/ poor acceleration Ignition problems Vacuum leaks • HIC line • PCV line • Intake manifold • Carburetor hoses Air cleaner clogged Fuel line clogged Carburetor problems Emission control system problem • HAl system always on (hot engine) • AAP system faulty (cold engine) Engine overheats Compression low Troubleshoot ignition system Repair as necessary Check air filter Check fuel line Troubleshoot fuel system Check HAl system Check AAP system Troubleshoot cooling system Check compression IG-2 EM-4 FU-2 CO-2 EM-13 Engine dieseling (runs after ignition switch is turned off) Carburetor problems Incorrect ignition timing Troubleshoot fuel system Reset timing FU-2 EM-6 Muffler explosion (after fire) on deceleration TP system faulty (MIT only) Deceleration fuel cut system always off Check TP system Check fuel cut system EM-12 Muffler explosion (after fire) all the time Air cleaner clogged Choke system faulty Incorrect ignition timing Check air filter Check choke system Reset timing EM-4 EM-6