Cranks no start

Tiny
BRENDA L DAVIS
  • MEMBER
  • 1998 CHRYSLER SEBRING
  • 2.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 88,000 MILES
My car started missing when it was cold, but when got warm ran good. The other day drove to town and car shut off in parking lot. Now won't start. I checked fuel with starting fluid but did not start still. What do I check next?
Friday, July 26th, 2019 AT 12:36 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,170 POSTS
Welcome to 2CarPros.

If it won't start with starting fluid, I suspect you lost spark to the spark plugs. If that is the case, then I suspect the crankshaft position sensor may have failed.

The first thing I need checked is spark to the plugs. Here is a link that shows how it is done:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Here are a few links to help with checking for spark:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

If there is no spark, the first thing I would suspect is the crankshaft position sensor. If you have a scanner, you could check to see if there is an RPM signal when the engine is cranking and you could check for diagnostic trouble codes which would be very helpful.

The sensor is located on the transmission bell housing, near where the engine bolts to it.
See picture 1.

Here are three links that you may find helpful. The first explains what the sensor is and does, the second discusses common symptoms, and the third explains in general how one is replaced.

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works

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

https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

Here are the directions for replacement specific to your vehicle. Picture 2 correlates with these directions.

___________________

REPLACEMENT

picture 2

Pre-removal and Post-Installation Operation
Battery Removal and installation

Removal
To remove follow the steps listed in the image.

Installation
To install reverse the steps listed in the image.

__________________________

Let me know if this helps or if you have other questions.

Take care,
Joe
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Friday, July 26th, 2019 AT 7:35 PM

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