Crankcase (pcv) problems of the 2014 GMC Terrain

Ten problems related to crankcase (pcv) have been reported for the 2014 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 GMC Terrain based on all problems reported for the 2014 Terrain.

1 Crankcase (pcv) problem

Failure Date: 08/23/2024

The contact owns a 2014 GMC Terrain. The contact stated that while his wife was driving at an undisclosed speed, the vehicle stalled. The contact stated that his wife was not aware of any warning lights being illuminated. The contact stated that his wife was unable to restart the vehicle, and had the vehicle towed to the residence. The contact called an independent mechanic to the residence who diagnosed the vehicle and determined that there was oil leaking into the engine block and cylinders. The mechanic determined that the positive crankcase valve (pcv) had failed and needed to be replaced, and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 105,000.

2 Crankcase (pcv) problem

Failure Date: 12/25/2022

The contact owns a 2014 GMC Terrain. The contact stated that while driving at various speeds, oil had drained from the vehicle. There were no warning indicator lights illuminated. The vehicle was taken to the local dealer where it was diagnosed the pcv froze and caused oil to leak from the vehicle. The vehicle was not repaired. The manufacturer was not contacted regarding the failure. The failure mileage was approximately 79,000.

3 Crankcase (pcv) problem

Failure Date: 03/02/2022

The contact owns a 2014 GMC Terrain. The contact stated that the oil gauge failed to display when the oil level was low. The contact heard a rattling noise coming from underneath the hood of the vehicle. The check engine warning light was illuminated. The contact stated that oil had to be added between 800 - 1,000 miles. The contact took the vehicle to a certified mechanic who replaced the pcv valve however, the failure persisted. The vehicle then displayed a timing chain code. The contact took the vehicle to two different dealers who diagnosed the vehicle and determined that the piston rings had failed. The contact was informed that the timing chain, pistons, and pistons rings needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure and opened a case. The approximate failure mileage was 68,500.

4 Crankcase (pcv) problem

Failure Date: 02/15/2021

While driving on the interstate in below freezing weather the low oil pressure light illuminated directing me to stop the vehicle immediately. After waiting 2 hours in freezing temperatures I was able to get vehicle towed to a mechanic and the rear main oil seal had blow out due to a blocked pcv valve. This is a know issue up to 2013 GMC Terrains and mine is 2014. Pictures from the special coverage bulletin 14882 looks like identical part still used in the 2014.

5 Crankcase (pcv) problem

Failure Date: 02/11/2021

Left my house on a very cold morning (below 10 degrees) and while I was driving and my engine started making a very loud clattering noise. Low power message displayed on the dash and several lights displayed. Nothing prior to the noise. Immediately pulled in and parked my vehicle. I had the codes ran, checked the oil and it had none! the vehicle was checked out and the pcv valve failed/froze causing combustion in the engine and blew out the rear main seal. According to service bulletin 14882 this was an issue on the 2010-2013 GMC Terrains and 2010-2014 Chevrolet equinox (which is basically the same thing) a recall was issued. My vehicle is a 2014 (who's to say when the engine was not built in 2013?) and it doesn't appear the issue was fixed on the 2014s which is going to cost me approximately $3000 to fix. When the rear main seal blew (or started leaking) it coated the whole underside of my vehicle which could have cause me to wreck or catch fire. I had to have my vehicle towed since I was several miles from home.

6 Crankcase (pcv) problem

Failure Date: 02/07/2021

During cold temperatures (14 degrees) my pcv valve failed to work while sitting at a read light while I was driving home from work on a city street resulting in my rear main seal blowing. This was an issue on the 2010-2013 GMC Terrains and other gm vehicles as noted in the service bulletin 14882. My car is a 2014 and clearly the issue has not been resolved which has cost me nearly $3000 in repairs. Luckily I was close to home but this issue could've left me stranded in below freezing temperatures. This issue also caused oil to leak everywhere and could've resulted in a fire. My car was smoking and smelled as though something was burning.

7 Crankcase (pcv) problem

Failure Date: 12/25/2020

Tl the contact owns a 2014 GMC Terrain. The contact stated that while his wife was driving at an undisclosed speed, the vehicle stalled with the check engine and low oil pressure warning light illuminated. Additionally, there was a message flashing on the instrument panel with a message to turn off the vehicle. The driver pulled over and turned of the vehicle. The vehicle was towed to an independent mechanic to be diagnosed. The contact was informed that the rear main seal was blown due to excessive crankcase pressure. There was also a minimal amount of oil in the engine. The mechanic informed the contact of TSB: 14882 and 19na021. Robert brogden Buick GMC (1500 e. Santa fe st. , olathe, KS 66061 (913)782-1500) was contacted and stated the VIN was not under recall. The contact was informed to tow the vehicle to be diagnosed. The vehicle was repaired at an independent mechanic. The manufacturer was made aware of the failure. The failure mileage was 107,298.

8 Crankcase (pcv) problem

Failure Date: 01/23/2020

This car burns 3 quarts of oil between 5000 mile oil change intervals. It has done it since it was new. I just found out it is because of a faulty pcv system. 01.

9 Crankcase (pcv) problem

Failure Date: 10/23/2019

The pcv system there's plugged up dumping oil into the intake and to the throttle body oils in the intake manifold crankcase too much pressure.

10 Crankcase (pcv) problem

Failure Date: 09/23/2019

Tl the contact owns a 2014 GMC Terrain. The contact stated that soon after receiving an oil change, the oil warning light illuminated. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the pcv valve was clogged and needed to be replaced. The vehicle was not repaired. Neither the dealer nor the manufacturer was notified of the failure. The failure mileage was unknown.



Safety Ratings of Terrain Cars
Fuel Economy of Terrain Vehicles
Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations