# 2010 Chevrolet Spark - Loss of power stumps usual mechanic

**URL:** <https://community.cartalk.com/t/2010-chevrolet-spark-loss-of-power-stumps-usual-mechanic/194292>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet\
**Created:** [February 1, 2024, 12:27pm UTC](https://community.cartalk.com/t/2010-chevrolet-spark-loss-of-power-stumps-usual-mechanic/194292 "2024-02-01T12:27:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![CJ09](https://avatars.discourse-cdn.com/v4/letter/c/cdc98d/32.png) [@CJ09](https://community.cartalk.com/u/CJ09)\
**Post date:** [February 1, 2024, 12:27pm UTC](https://community.cartalk.com/t/2010-chevrolet-spark-loss-of-power-stumps-usual-mechanic/194292/1 "2024-02-01T12:27:11Z")

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A friends car lost power coming off a motorway in Uk thinks 2 stp lights come on and garage cant find a fault and does anyone have any idea what could be cause of it?

Many thanks.

CJ

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**Author:** ![davesmopar](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/davesmopar/32/41750_2.png) [@davesmopar](https://community.cartalk.com/u/davesmopar)\
**Post date:** [February 1, 2024, 1:13pm UTC](https://community.cartalk.com/t/2010-chevrolet-spark-loss-of-power-stumps-usual-mechanic/194292/2 "2024-02-01T13:13:39Z")

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> [@CJ09](#):
>
> A friends car lost power coming off a motorway in Uk thinks 2 stp lights come on and garage cant find a fault and does anyone have any idea what could be cause of it?
> 
> Many thanks.
> 
> CJ

Welcome to the forum…  
It would be GREAT if you used proper punctuation and not make us have to figure out what you are saying…

Not understanding what you mean by **“thinks 2 stp lights come”**

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [February 1, 2024, 10:42pm UTC](https://community.cartalk.com/t/2010-chevrolet-spark-loss-of-power-stumps-usual-mechanic/194292/3 "2024-02-01T22:42:03Z")

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> [@CJ09](#):
>
> car lost power … garage cant find a fault

I presume it won’t start now either. Those symptoms are often caused by either a no-fuel or no-spark problem. Are you sure there is plenty of gasoline in the tank?

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**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\
**Post date:** [February 1, 2024, 10:58pm UTC](https://community.cartalk.com/t/2010-chevrolet-spark-loss-of-power-stumps-usual-mechanic/194292/4 "2024-02-01T22:58:02Z")

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> [@CJ09](#):
>
> A friends car lost power coming off a motorway

If you mean that the engine shut off without warning and wouldn’t restart, that could mean the crankshaft position sensor has failed.

And when a crankshaft position sensor fails, it doesn’t always turn on the Check Engine light or set a code. Making it harder to find the problem.

> **[Bad Crankshaft Position Sensor Symptoms & Problems](https://www.1aauto.com/content/articles/bad-or-failing-crankshaft-position-sensor-symptoms)**
>
> Problems with the crankshaft sensor will often present as problems with engine timing. If you think your sensor has failed, here are some common symptoms of a bad crankshaft sensor that can help you in determining whether or not it has failed.

Tester