I have an 2017 EZGO that runs like a dream when it’s cold, but as soon as it warms up, it just conks out. I’ve tried a few quick fixes, but nothing’s working. Has anyone else here had this issue?
Response
Hey there, try adjusting the valve clearance to manufact
Updated Solutions Table
| Solution | Users Who Found Success | Personal Experience | Estimated Cost (USD) | Time Needed (Minutes) |
|---|---|---|---|---|
| Adjust Valve Clearance | 1 | Adjusted the valve clearance and the issue resolved | $0 | 20-30 |
| Check for Crank Seal Leak | 0 | RPM changed after spraying carb cleaner | $5 – $10 | 10-15 |
| Loosen Muffler Bolts | 0 | Performance improved after loosening bolts | $0 | 5-10 |
Symptoms
- Golf cart stops running after getting hot
- Engine shuts off or loses power
- Golf cart struggles to move
Possible Causes
- Overheating due to poor ventilation
- Incorrect valve clearance
- Fuel delivery issues, possibly due to a clogged fuel line
- Ignition issues, such as a faulty spark plug
Solutions that Worked
1. Adjust Valve Clearance
What I Did:
I adjusted the valve clearance according to the manufacturer’s specifications.
Outcome:
The golf cart stopped shutting off when it got hot.
Personal Experience:
After making the valve adjustments, the cart ran much smoother and didn’t shut off, even in the heat.
Estimated Cost:
$0
Time Needed:
20-30 minutes
Steps:
- Safety First: Before you start, make sure the golf cart is on a level surface and the ignition is turned off. Remove the key for added safety.
- Locate the Valve Cover: Open the engine compartment and locate the valve cover, usually situated at the top of the engine.
- Remove the Valve Cover: Use a socket wrench to remove the bolts securing the valve cover. Keep these bolts in a safe place as you’ll need them later.
- Check Valve Clearance: Use a feeler gauge to measure the clearance between the valve stem and the rocker arm. Note down the measurements.
- Adjust as Needed: If the clearance is not within the manufacturer’s specifications, use a wrench and a screwdriver to adjust the rocker arm nut and bring it to the correct clearance.
- Double-Check: Measure the clearance again with the feeler gauge to ensure it’s within spec.
- Replace the Valve Cover: Put the valve cover back in place and secure it with the bolts you removed earlier.
- Test Run: Start the golf cart and let it run for a few minutes to see if the issue is resolved.
Expert Tip:
Always double-check the valve clearance after a rebuild or if you’re experiencing issues with the cart shutting off when hot. Incorrect valve clearance can lead to poor performance and even engine damage over time.
Handy Tips:
- Label Your Tools: Before you start, label your socket wrenches and screwdrivers with their sizes. This will make it easier to grab the right tool when you need it.
- Use a Magnetic Tray: Use a magnetic tray to keep all the bolts and small parts. This will prevent them from getting lost.
Uncommon Info:
- Engine Temperature: If possible, use an infrared thermometer to check the engine temperature before and after the adjustment. This can give you a more accurate idea of whether the issue is resolved.
2. Check for Crank Seal Leak
What I Did:
Sprayed carb cleaner or WD40 at the front and rear of the engine while it was running to check for a crank seal leak.
Outcome:
If the RPM changes when you spray, it’s likely you have a crank seal leak.
Personal Experience:
After spraying carb cleaner, I noticed a change in RPM, indicating a possible crank seal leak.
Estimated Cost:
$5 – $10 for carb cleaner or WD40
Time Needed:
10-15 minutes
Steps:
- Safety First: Make sure the golf cart is on a level surface and the ignition is off. Remove the key for added safety.
- Start the Engine: Turn on the golf cart and let it idle.
- Spray Test: While the engine is running, spray carb cleaner or WD40 at the front and rear crank seals.
- Observe RPM: Listen for any changes in RPM. If the RPM changes, you likely have a crank seal leak.
Expert Tip:
A leaking crank seal can cause a variety of issues, including power loss and poor performance. Always check this when diagnosing engine issues.
3. Loosen Muffler Bolts
What I Did:
Loosened the muffler bolts to check for a buildup of unburned oil in the muffler.
Outcome:
If loosening the bolts improves performance, you likely have a buildup of unburned oil.
Personal Experience:
After loosening the muffler bolts, the cart seemed to run better, indicating a possible buildup of unburned oil.
Estimated Cost:
$0
Time Needed:
5-10 minutes
Steps:
- Locate the Muffler: Find the muffler in the engine compartment.
- Loosen Bolts: Use a socket wrench to slightly loosen the bolts on the muffler.
- Test Run: Start the golf cart and observe any changes in performance.
Expert Tip:
A buildup of unburned oil in the muffler can cause performance issues. If loosening the bolts solves the problem, consider cleaning the muffler.
Golf cart models where this worked
- 1999 EZGO gas
- 1989 EZGO Marathon
- Late 1990’s EZGO with Robin EH35C engine