Recently I changed the engine but when the engine gets heated, and I start the car it doesn’t start until some hours later then it starts.
Oct 12, 2021 at 1:47 PM
Will not start once the engine has warmed up
2003 NISSAN X-TRAIL
MARY BONSU
- MEMBER
- 14 POSTS
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SQM
- ✓ASE Certified Mechanic
- 6,383 POSTS
Hello,
It issue could be caused by a faulty coolant temperature sensor.
The coolant temperature sensor changes internal resistance with temperature. It can malfunction and send incorrect data to the ECM and the engine is 'too hot', in turn the ECM will not allow the engine to start. But after it cools down some you are able to start it.
That sensor can be tested using a multimeter by checking for resistance.
Here are some helpful articles:
https://www.2carpros.com/articles/how-a-coolant-temperature-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-coolant-temperature-sensor
I have attached the coolant temperature sensor testing procedure below.
Please let me know what you find.
Thank you.
It issue could be caused by a faulty coolant temperature sensor.
The coolant temperature sensor changes internal resistance with temperature. It can malfunction and send incorrect data to the ECM and the engine is 'too hot', in turn the ECM will not allow the engine to start. But after it cools down some you are able to start it.
That sensor can be tested using a multimeter by checking for resistance.
Here are some helpful articles:
https://www.2carpros.com/articles/how-a-coolant-temperature-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-coolant-temperature-sensor
I have attached the coolant temperature sensor testing procedure below.
Please let me know what you find.
Thank you.
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Oct 12, 2021 at 2:31 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.