Just bought a rebuilt terrain. - Page 2 - TerrainForum.net: GMC Terrain Forum
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post #11 of 29 (permalink) Old 11-02-2019, 01:35 PM Thread Starter
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On side note, I seen Ac Delco synthetic VI transmission fluid for $22 a gallon online from a gm place. Was cheaper than the non synthetic, think it's good or worth the extra for valvoline? I been using valvoline in differentials for years.
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post #12 of 29 (permalink) Old 11-02-2019, 05:10 PM
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I've got Valvoline Dexron VI in a 2015 V6 right now, changed the fluid at 50,000 it works fine. In my 2011 I4 Terrain I used Valvoline MaxLife ATF, only because I didn't realize at the time that it was Dexron VI compatible but not officially licensed. However I have used it again at my last drain and fill at 100,000 and the Transmission still shifts great. As of this post the cheapest licensed Dexron VI on amazon are...

Havoline 12 qt
https://www.amazon.com/HAVOLINE-2265...%2C207&sr=8-27

Mag 1 6qt (just by two to get 12qt)
https://www.amazon.com/Mag-64092-6PK...724848&sr=8-11

Valvoline (If you have a menards near you)
https://www.menards.com/main/tools/a...5114120&ipos=1

This is enough fluid to do 2 or 3 drain and fills, or if you disconnect the cooler line you can get it all in one go.
There are videos on youtube showing a drain and fill and a video showing how to disconnect the transmission cooler line to flush the entire fluid out at once. It is very easy to do and like everyone else I highly recommend going ahead and doing since the Terrain in hard on transmission fluid
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post #13 of 29 (permalink) Old 11-02-2019, 07:18 PM Thread Starter
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I bought the havoline, had Amazon gift card, also I have a jug of valvoline, so now I have 19 quarts. Replaced speaker in door, found a set of oem ones for $22 so I have a spare and static in stereo went away, so that's one thing taken care of. Next will replace rear 02, wondering how hard that will be to get to.

2014 Terrain SLE-2, awd 2.4.

Last edited by Rotwiler; 11-02-2019 at 07:20 PM.
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post #14 of 29 (permalink) Old 11-02-2019, 11:00 PM
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Quote:
Originally Posted by Rotwiler View Post
I bought the havoline, had Amazon gift card, also I have a jug of valvoline, so now I have 19 quarts. Replaced speaker in door, found a set of oem ones for $22 so I have a spare and static in stereo went away, so that's one thing taken care of. Next will replace rear 02, wondering how hard that will be to get to.
Here is a video of a guy replacing the 02 sensor at the back of the exhaust manifold, if that is the same one you are changing?
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post #15 of 29 (permalink) Old 11-09-2019, 12:24 AM Thread Starter
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So today I replaced the 02 sensor downstream, with a walker brand direct fit. I noticed the 02 sensor was already replaced with a Bosch brand one, but is larger and was touching frame. The walker one is smaller. Also replaced both intake and exhaust vvt solenoid things on top left of motor, Cleaned throttle body, air filter and checked pvc, no oil in line from engine to airbox at all and I stuck a ac Delco vented oil cap on it. So far went 76 miles, stopped 30+ times and no cel light, keeping fingers crossed.
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2014 Terrain SLE-2, awd 2.4.
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post #16 of 29 (permalink) Old 11-10-2019, 07:27 AM Thread Starter
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Cleaned maf with electrical cleaner too. So far been 3 days driving and no cel light. I also looked at my torque app and my 02 sensors would fluctuate alot at idle, now both 02s are almost identical numbers, like. .8 and other will fluctuate from .8 to .7 and back, before would go +15 and to neg etc. Also noticed after starting cold, before would get a misc rough idle that lasted a second but lights, now idles smooth. Had me worried, but think it's good. Cost less than a dealer diagnosis to fix and took around a hour to do everything. I put in cheap $11 each vvt sensor things just to try to see if it could be issue, if pops code I saved old oem ones and put tools in glove box since only takes 5 minutes to replace them.
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2014 Terrain SLE-2, awd 2.4.

Last edited by Rotwiler; 11-10-2019 at 07:30 AM.
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post #17 of 29 (permalink) Old 11-10-2019, 10:40 AM
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Quote:
Originally Posted by Rotwiler View Post
if pops code I saved old oem ones and put tools in glove box since only takes 5 minutes to replace them.
I had a good chuckle on your post.
Reminds me of the old days, we used to keep Holley bowl gaskets and a screwdriver and a couple of wrenches in the glove box.

Took about 15 minutes to change both of them on the side of the road when they started leaking.
And they always did.
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2014 Equinox LTZ FWD 3.6L. V-6 (LFX)
GM6T70 Transmission-Gen II(M7W)
Crystal Red Tintcoat-Brownstone Leather-(FE2) Suspension-18" Wheels
Build Date: Nov. 04, 2013-Delivery Date: Nov. 25, 2013
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post #18 of 29 (permalink) Old 11-10-2019, 04:11 PM
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Since you have the 4 cylinder
If you live where it is cold
You might consider getting a 1 way vented oil cap

It should prevent crankshaft rear main seal failure,
If and when you get significant piston blowby and it is cold out.

Also, check your oil level frequently, the GDI engines are known for oil consumption.

2012 Traverse with Elite E2 X catchcan
Three Equinox with 2.4 engine, 2013, 2016 and 2016
2017 equinox with 3.6 engine with Elite E2 X catchcan
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post #19 of 29 (permalink) Old 11-10-2019, 05:54 PM
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Quote:
Originally Posted by Rotwiler View Post
Cleaned maf with electrical cleaner too. So far been 3 days driving and no cel light. I also looked at my torque app and my 02 sensors would fluctuate alot at idle, now both 02s are almost identical numbers, like. .8 and other will fluctuate from .8 to .7 and back, before would go +15 and to neg etc. Also noticed after starting cold, before would get a misc rough idle that lasted a second but lights, now idles smooth. Had me worried, but think it's good. Cost less than a dealer diagnosis to fix and took around a hour to do everything. I put in cheap $11 each vvt sensor things just to try to see if it could be issue, if pops code I saved old oem ones and put tools in glove box since only takes 5 minutes to replace them.
Your 02 sensor #1 should fluctuate from .1v to .8v every few seconds once in closed loop (engine control). The ECM is adjusting fuel delivery to maintain the optimal fuel/air ratio and uses the sensor reading. Sensor 2, after the CAT reflects the performance of the CAT and should not fluctuate that much. Mine stays between .65v and .75v, occasionly reaches .8 depending on engine load. High voltage indicates rich condition and low indicates a lean condition.
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post #20 of 29 (permalink) Old 11-10-2019, 11:44 PM Thread Starter
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Quote:
Originally Posted by rednox301 View Post
I had a good chuckle on your post.
Reminds me of the old days, we used to keep Holley bowl gaskets and a screwdriver and a couple of wrenches in the glove box.

Took about 15 minutes to change both of them on the side of the road when they started leaking.
And they always did.
I'm 53, so been through the carb leaking lol maybe old ways never go away. Put a lot of miles now since I did the various things to the 2.4 and zero cel, so happy about that. Now the drive train fluids are next and will be good. Had it at friend's house on lift so I could check out damage it had in past, at dealer could only see some. Happy to say nothing looked bad, rear looked like was hit in lower center, they pounded out spare tire well and redid the muffler(cut 6 inch portion out of exhaust, cut inlet on muffler and re welded new section, a couple lower brackets replaced and bumper cover. Looked very good actually, and happy with the purchase. At $7,000 think it was good deal, even more now since I could get up in there and see it better. So far put around 1,800 miles on it since I bought it and haven't had to add any oil.

2014 Terrain SLE-2, awd 2.4.

Last edited by Rotwiler; 11-10-2019 at 11:54 PM.
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