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2018 buick Encore engine problems

moderate 19 complaints filed with NHTSA · avg repair $3,100

Complaints
19
Recalls
0
Crashes
0
Avg fix
$3,100

What owners are reporting 9 most recent

engine · filed 12/30/2024

The contact owns a 2018 Buick Encore. The contact stated while the vehicle was parked, the contact's husband noticed there was oil leaking onto the ground underneath the vehicle. The contact’s husband, who is a certified mechanic, diagnosed the vehicle and determined that the failure was caused by a leaking oil cooler pipe. The contact was informed that the oil cooler pipe needed to be replaced. T…

engine · filed 12/07/2024

Overdrive recall and check engine lights is on. We were just informed about the recall from our mechanic

engine · filed 11/14/2025

Brought my car to get an oil change and was told they could not do it as my oil filter housing unit is cracked and leaking oil they said to check for recalls as this is an issue with other vehicle same problem. Upon checking i was informed that Buick is not making this a recall item at this time. They put in enough oil for me to get home.

engine · filed 11/11/2025

COMPONENT FAILURE: THE ENGINE TIMING CHAIN. YES, IT IS AVAILABLE FOR INSPECTION. SAFETY RISK: VEHICLE HESITATED AND LOST POWER IN TRAFFIC, CAUSING MY VEHICLE TO AUTOMATICALLY SLOW DOWN WHERE I WAS NO LONGER DRIVING AT THE SPEED LIMIT. MY SAFETY AND OTHER DRIVERS AROUND ME WAS COMPROMISED AS THIS COULD HAVE CAUSED A MAJOR ACCIDENT SHOULD I HAVE BEEN REAR ENDED. I HAD IT TOWED TO LAMBERT BUICK, CUY…

engine · filed 11/10/2025

The contact owns a 2018 Buick Encore. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the timing chain, resulting in damage to …

engine · filed 10/03/2018

THERE IS A MALFUNCTION WITH THE TURBO HOSE ON A MAJORITY OF 2018 BUICK ENCORE'S THAT REQUIRE A NEW HOSE. THERE IS A NATIONWIDE BACK ORDER ON THESE PARTS DUE TO ALL OF THE REPAIRS. WHEN THIS ITEM BROKE I WAS DRIVING ABOUT 70 MPH ON THE INTERSTATE, THERE WAS A LOUD POP FROM THE ENGINE COMPARTMENT AND THE VEHICLE WOULD NOT ACCELERATE APPROPRIATELY.

engine · filed 09/29/2021

The contact owns a 2018 Buick Encore. The contact stated while driving at various speeds, the check engine warning light would illuminate as the average miles per gallon decreased. The vehicle was taken to the dealer who stated that the clamps for the turbo hoses were loose. The clamps and hoses were realigned and tightened. The contact stated that the failure recurred 2 months later. The vehicle …

engine · filed 09/18/2024

Stalling and shuts off. Low power when accelerating. Car has been so slow to take off that when merging into on coming traffic I have to move to shoulder & then try again to prevent an accident. Coughs, putt & squeaking sounds.Car shakes while in park or not in motion. Check engine light on.

engine · filed 09/04/2024

There are many Buick Encores, including 2018 that have a problem with acceleator position sensors. My car’s vin # shows that it does not have this notice, and thus no problem. However, in July this 2018 Buick Encore went into ‘limp mode, check engine light came on. Code for problem was 2138 (accelerator Pedal Position Sensor) The initial dealer solution was to apply dielectric grease. However, th…

Common questions

How serious is the engine problem on the 2018 buick Encore?

It's a documented issue but not catastrophic. 19 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.

At what mileage does the engine typically fail?

Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.

What does it cost to fix?

Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.

Are there any recalls related to engine?

No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.

Other problem areas on this vehicle

Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA) public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are independent-shop national averages and may differ in your area. Some links on this page are affiliate links.
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