My gas Club Car is constantly backfiring, especially when I ease off the gas. It’s not only annoying but I’m worried it might lead to bigger problems. Has anyone successfully fixed this issue? Any advice would be a lifesaver!
Response
It sounds like your throttle cable may be super tight. After adjusting it and swapping the fuel vent for a glass filter, the backfiring stopped. It seemed like the tight cable was causing the engine to over-rev. Hope this helps you out!
Solutions that Worked for Users
| Solution | Users Who Found Success | Approx. Cost (USD) | Approx. Time Needed (Minutes) |
|---|---|---|---|
| Adjust Throttle Cable and Fuel Vent | 3 | $0 – $30 | 30 – 60 |
| Replace Ignition Coil | 2 | $50 – $100 | 60 – 120 |
| Check and Adjust Valve Lash | 2 | $0 – $20 | 30 – 60 |
| Replace Starter | 2 | $100 – $200 | 60 – 120 |
| Disconnect RPM Limiters | 1 | $0 | 30 – 60 |
Symptoms
- Frequent backfiring, particularly when decelerating.
- Inconsistent engine performance and starting issues.
Possible Causes
- Throttle cable tension issues.
- Faulty ignition coil or starter.
- Improper valve lash settings.
- RPM limiters interfering with engine performance.
Solutions with Steps and Tips
- Adjust Throttle Cable and Fuel Vent
- What I Did: Loosened the overly tight throttle cable and replaced the fuel vent.
- Outcome: The backfiring issue was resolved.
- Detailed Steps:
- Locate the throttle cable adjustment point, usually near the carburetor.
- Loosen the adjustment nut and reduce the cable tension.
- Replace the old fuel vent with a high-quality glass filter for better airflow.
- Test drive the cart to ensure the backfiring has stopped and the throttle response is smooth.
- Expert Tip: Regular lubrication of the throttle cable can prevent sticking and over-tensioning.
- Replace Ignition Coil
- What I Did: Swapped out the old ignition coil for a new one.
- Outcome: Eliminated the skipping and backfiring.
- Detailed Steps:
- Disconnect the power source for safety.
- Locate the ignition coil, usually near the spark plug.
- Unbolt the old coil and disconnect the wires.
- Install the new coil, ensuring all connections are secure.
- Reconnect the power and test the engine for smooth operation.
- Expert Tip: Watch for signs of wear or corrosion on the coil connections, as these can lead to ignition problems.
- Check and Adjust Valve Lash
- What I Did: Measured and adjusted the valve lash to the manufacturer’s specifications.
- Outcome: Improved engine start-up and reduced backfiring.
- Detailed Steps:
- Locate the valves, typically under the engine cover.
- Use a feeler gauge to measure the gap between the valve stem and rocker arm.
- Adjust the lash by loosening or tightening the adjustment nut to achieve the correct gap.
- Recheck the measurements and test the engine.
- Expert Tip: Regular valve lash checks can prevent a range of engine issues, including backfiring.
- Replace Starter
- What I Did: Installed a new OEM starter.
- Outcome: Smooth and consistent starting without backfiring.
- Detailed Steps:
- Locate and remove the old starter, typically found near the engine or under the seat.
- Compare the new starter with the old one to ensure compatibility.
- Install the new starter, connecting all wires and bolts securely.
- Test the starter for efficient operation.
- Expert Tip: Choose a high-quality OEM starter to ensure longevity and reliability.
- Disconnect RPM Limiters
- What I Did: Disconnected the ground wire of the RPM limiters.
- Outcome: Reduced backfiring during high-speed driving.
- Detailed Steps:
- Locate the RPM limiters on the engine front.
- Identify the ground wire and carefully disconnect it.
- Secure the disconnected wire to prevent accidental contact.
- Test drive the cart to assess the change in performance.
- Expert Tip: Keep an eye on engine performance post-modification to ensure no adverse effects.
Golf Cart Models Where This Worked
- Various Club Car models, particularly those with FE290 engines.