What causes an engine to stall when hot?

2007 TOYOTA RACTIS
135,000 MILES • 1.6L • 4 CYL • 2WD • AUTOMATIC
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BLESSED INI
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  • 1 POST
In the morning the engine starts okay but stalls when hot. Have changed fuel pump, fuel filter and spark plugs, but no change. What could be the problem?
Oct 25, 2023 at 11:27 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
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Hi,

When it stalls, can you start it immediately or do you have to wait? I ask because it may be related to a crankshaft position sensor starting to fail. When they start to fail, they are adversely affected by heat. Often, but not always, you need to wait for it to cool before it will run again.

Do me a favor. Take a look through this link and let me know if anything mirrors what you experience:

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

Let me know. Also, this model isn't offered in the US, so I don't have specifics. However, I will do my best to help. Let me know your thoughts on the link.

Take care,

Joe
Oct 25, 2023 at 7:49 PM
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