2012 Terrain 2.4l Camshaft Position sensor locationsS - Page 2 - TerrainForum.net: GMC Terrain Forum
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post #11 of 22 (permalink) Old 08-06-2015, 04:07 PM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

Quote:
Originally Posted by Circa58
The camshaft position sensors from Rock Auto were $32.xx

The Variable Timing Solenoid (that's what they call it on Rock Auto ) was $30.xx

So $120 and change for all 4 sensors, roughly the cost for the diagnosis at my local Dealer.

I did not go to the dealer, they did not mention a re-set.

I installed the parts and the light was still on after I disconnected the Negative battery cable, then i put some 93 octane in and the lights went out, maybe I got lucky

I suspect that disconnecting the battery and doing nothing to the solenoids would also have had the MIL light go on (whoops, meant to say off) . The proof of the pudding is if it stays off !

Just curious, why did you put in the 93 octane gas ? Was that just a celebration with champagne for the car ?

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post #12 of 22 (permalink) Old 08-06-2015, 05:00 PM Thread Starter
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Re: 2012 Terrain 2.4l Camshaft Position sensor locations

i tired 93 octane because the Autozone Code Check guy said something about the code he got could have been a timing issue, so I wondered if bad gas could have caused the engine to "maybe" advance or retard the timing due to low octane, or a crappy thank of gas,,, I don't know if the 93 octane had anything to do with it or not honestly.

I drive in sales 35k per year, so every once in a great while, i run some injector cleaner thru the car to keep it running as well as possible
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post #13 of 22 (permalink) Old 08-07-2015, 01:50 PM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

I suspect that the code clearing had less to do with the gas you used, and more to do with driving a certain number of miles. Some codes reset after a period of time/miles if the issue has been corrected.

Out of curiosity, do you have a flex-fuel engine?

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post #14 of 22 (permalink) Old 08-07-2015, 02:42 PM Thread Starter
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

No, no Flex Fuel on mine.

I would agree, probably does reset after x miles , either way, the light is off, and that makes me happy!
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post #15 of 22 (permalink) Old 02-07-2017, 07:22 PM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

What is the difference between to 2 camshaft position sensors? Is one for intake and one for exhaust?
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post #16 of 22 (permalink) Old 02-07-2017, 08:26 PM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

Yes . . . .

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post #17 of 22 (permalink) Old 02-07-2017, 09:28 PM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

Which one is intake and which one is exhaust?
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post #18 of 22 (permalink) Old 02-09-2017, 03:06 PM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

The intake is toward the front of your vehicle. The exhaust is toward the firewall.
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post #19 of 22 (permalink) Old 03-02-2017, 07:13 AM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

Our 2010 Terrain 2.4l is now having the rough idle and stalling at idle issue. It's happened about 8 times over the past two weeks. we are at 117k miles and its never happened before. I replaced the rear camshaft position sensor last night. Hopefully that will do it and I won't need to do the front as that one looks like a huge pain. I've done actuators on my 09 colbalt a few years back but that car through a code and idled rough all the time.

No codes on the Terrain with these issues.
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post #20 of 22 (permalink) Old 03-02-2017, 10:28 AM
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Re: 2012 Terrain 2.4l Camshaft Position sensor locationsS

2000redss,

If the sensor change doesn't clear it up check your throttle body.

My 2011 (3.0) started surging at idle and died a couple of times. No codes. I looked at the throttle body and it was black inside. Cleaning it cleared up all the issues.
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