# 2014 GMC Terrain - Engine cut off **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** gmc\ **Created:** [July 4, 2019, 3:27am UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622 "2019-07-04T03:27:09Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![DASHAWN](https://avatars.discourse-cdn.com/v4/letter/d/dec6dc/32.png) [@DASHAWN](https://community.cartalk.com/u/DASHAWN)\ **Post date:** [July 4, 2019, 3:27am UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/1 "2019-07-04T03:27:09Z")
the engine cut off when I was driving home after work on the city street in heavy traffic ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [July 4, 2019, 2:18pm UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/2 "2019-07-04T14:18:49Z")
Well that’s not good. Have you had it towed to a god independent mechanic? What’s your question? ---
**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:** [July 4, 2019, 3:14pm UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/3 "2019-07-04T15:14:13Z")
A faulty crankshaft position sensor can cause an engine to shut off and not restart. [https://www.rockauto.com/en/catalog/gmc,2014,terrain,3.6l+v6,3298522,ignition,crankshaft+position+sensor,7196](https://www.rockauto.com/en/catalog/gmc,2014,terrain,3.6l+v6,3298522,ignition,crankshaft+position+sensor,7196) Tester ---
**Author:** ![shanonia](https://avatars.discourse-cdn.com/v4/letter/s/9de053/32.png) [@shanonia](https://community.cartalk.com/u/shanonia)\ **Post date:** [July 5, 2019, 12:42am UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/4 "2019-07-05T00:42:31Z")
Fuel pump failures are not uncommon on GM trucks. But you need a diagnosis (no fuel? no spark? or what?), not just hunches. Good luck and please keep us informed. ---
**Author:** ![cwatkin](https://avatars.discourse-cdn.com/v4/letter/c/59ef9b/32.png) [@cwatkin](https://community.cartalk.com/u/cwatkin)\ **Post date:** [July 7, 2019, 8:21pm UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/5 "2019-07-07T20:21:09Z")
Were any check engine lights on before it quit? If so, read the codes. A CPS should have had a code. Faulty fuel pumps or something associated may not unless there was a lean misfire or similar. ---
**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:** [July 7, 2019, 8:31pm UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/6 "2019-07-07T20:31:56Z")
> [@cwatkin](#): > > A CPS should have had a code. Not always true. > **[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 ---
**Author:** ![cwatkin](https://avatars.discourse-cdn.com/v4/letter/c/59ef9b/32.png) [@cwatkin](https://community.cartalk.com/u/cwatkin)\ **Post date:** [July 7, 2019, 8:50pm UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/7 "2019-07-07T20:50:04Z")
I have never seen one that caused a car to stop running not throw a code or throw the wrong code. Maybe this can be the case during early stages of failure. ---
**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:** [July 7, 2019, 8:55pm UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/8 "2019-07-07T20:55:04Z")
Then that tells me you haven’t repaired enough vehicles that have had crank sensor failure. Tester ---
**Author:** ![cwatkin](https://avatars.discourse-cdn.com/v4/letter/c/59ef9b/32.png) [@cwatkin](https://community.cartalk.com/u/cwatkin)\ **Post date:** [July 8, 2019, 1:30am UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/9 "2019-07-08T01:30:16Z")
Gotcha! The ones I had looked at definitely had a code but I think the people had run them with the problem for a while or until they simply quit. They had a code and no spark condition. Certain things definitely do not always throw a code. O2 sensors have to be so far out before they throw a code. Grounding issues can cause all kinds of driveability issues but not trigger a code. The same goes for the fuel pump as mentioned. ---
**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:** [July 8, 2019, 1:40am UTC](https://community.cartalk.com/t/2014-gmc-terrain-engine-cut-off/143622/10 "2019-07-08T01:40:29Z")
There’s many things that can cause that symptom. Post the diagnostic codes you get from your shop’s diagnosis, folks will have more to go on. Assuming it still won’t start, the first step is to determine if the problem is spark or fuel. Try starting it with some starter spray into the air intake. If it starts and runs briefly, then stalls out, problem is probably with the fuel system. Otherwise with the spark system.