Will not start when hot

Tiny
BIGTEDENTERPRISES
  • MEMBER
  • 1998 BMW 318I
  • 1.9L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 100,000 MILES
When engine is hot it will not start. It cranks over but not fire into life.
Sunday, October 29th, 2017 AT 1:03 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
I would start by reading the codes to see what comes up but to me it sounds like the engine coolant temperature sensor needs to be replaced. Here are some guides to give you an idea of what needs to be done to get us started.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

and

https://www.2carpros.com/articles/coolant-temperature-sensor-cts-replacement

Here are some diagrams of what it will take to change the sensor (Below)

Please let us know what happens.

Cheers, Ken
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Monday, October 30th, 2017 AT 3:06 PM

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