2010 Harley-Davidson FLHTK Electra Glide Ultra Limited — Common Issues & Known Problems
Known Issues & Owner Reports
These are the most commonly reported issues and concerns from owners, mechanics, and community forums for the 2010 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Compensator Failure
HighThe stock compensator lacks adequate lubrication and has a weak spring pack, leading to clunking, vibration, and hard starting.
Automatic Primary Chain Tensioner Over-tightening
MediumThe ratcheting auto-tensioner can click into a position that is too tight, putting excessive side-load on the transmission mainshaft and inner primary bearing.
Excessive Engine Heat
MediumThe 103ci engine runs very hot, particularly on the right side due to the catalytic converter located in the headpipe collector.
Rear Brake Light Switch Recall
HighExposure to high exhaust heat can cause the switch to fail or leak brake fluid.
Used Buying Inspection Checklist
What to look for when buying a used 2010 Harley-Davidson FLHTK Electra Glide Ultra Limited.
Compensator Noise
Listen for a loud metallic bang when starting the engine cold. If present, the compensator is likely failing.
Rear Brake Light Switch Recall
Check if the recall for the rear brake switch (exposed to exhaust heat) has been performed; it can cause brake light failure or fluid leaks.
ABS Operation
Ensure the ABS light goes out after reaching 3-5 mph. Sporadic ABS lights often indicate a failing wheel speed sensor or dirty fluid.
Inner Primary Leak
Check for oil misting or drips between the engine and primary case, which often indicates a failing inner primary bearing or seal.
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