Troubleshooting: Ford Diesel Generator Wont Crank When Warm

Question:

I have an old Ford diesel generator that powers an air compressor. It starts up easily in the morning when it's cold, but after running for 5-10 minutes, it won't crank or turnover when I try to restart it. I can only hear the diesel solenoid click once and the starter solenoid once I turn the key. After waiting 40 minutes to an hour, it starts right up again on the first try. The 12v system has a perfectly functioning starter and battery, with no issues in the connections. Even though it starts when cold, it refuses to crank when warm. The starter may feel hot after running for a while, but it still won't turn over. Could this heat be the cause of the problem?

Top Replies

When your engine is hot and struggling to start, it's crucial to check the voltage to determine if it's a malfunctioning solenoid or a weak starter causing the issue. If the starter doesn't receive full battery voltage, troubleshoot backwards to identify the root of the problem. Additionally, installing a heat shield near the exhaust may provide some relief in this situation.

Have you noticed the starter getting hot before? If the starter solenoid is clicking, test the starter side of the solenoid using a test lead with an alligator clip. If it receives full battery voltage while starting, it may not be making contact when hot. Consider dismantling it yourself or taking it to a professional for inspection.

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Frequently Asked Questions (FAQ)

FAQ: 1. Why does my Ford diesel generator start easily when cold but won't crank when warm?

Answer: - The issue could be related to heat affecting the starter's ability to turn over the engine when warm.

FAQ: 2. What might be causing the diesel solenoid to click once and the starter solenoid to click when trying to restart the generator?

Answer: - This behavior could indicate a problem with the starter motor or solenoid, possibly due to heat-related issues.

FAQ: 3. How can I troubleshoot my Ford diesel generator that refuses to crank when warm?

Answer: - You may want to check the starter motor's condition, connections, and potential overheating issues as possible causes of the problem.

FAQ: 4. Why does my generator start up fine after waiting 40 minutes to an hour when it's warm?

Answer: - The cooling period may allow the starter motor to cool down enough to function properly again, pointing towards a heat-related issue with the starting system.

FAQ: 5. What steps can I take to prevent my Ford diesel generator from experiencing cranking issues when warm?

Answer: - Regular maintenance, checking for overheating components, and ensuring proper ventilation around the starter motor could help prevent warm-starting problems in the future.

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