The vehicle suffers from an extreme, unresolved internal crankcase pressure defect stemming from the factory 1.4L Ecotec PCV system and intake manifold check valve. This pressure cascade has caused a total turbocharger failure, multi-gasket oil blowouts, water pump failure, and has now completely blown a critical coolant housing hose off its connection, causing total coolant evacuation. The vehicle is currently parked and available for inspection upon request. The safety of the driver and minority passengers is severely compromised. The vehicle actively smokes from under the hood when turned on, which worsens immediately when the cabin heater is utilized. This indicates highly flammable oil and coolant are leaking directly onto hot exhaust/turbo components, presenting an active vehicle fire hazard. Furthermore, the pressure defect previously caused a catastrophic engine oil blowout while traveling at highway speeds, risking sudden power loss, engine seizure, and traffic collisions. The vehicle is currently deemed completely unsafe to operate. The vehicle's core turbocharger failure was previously confirmed and replaced by an authorized manufacturer dealership under a factory warranty extension. However, the dealership failed to diagnose or repair the underlying PCV/intake pressure defect, causing the new components to fail immediately upon vehicle delivery. The manufacturer has been notified of the failure cascade but is refusing to inspect or intervene without requiring out-of-pocket consumer diagnostic fees. No police or insurance inspections have occurred. began over two years ago with random, intermittent check engine lights accompanied by random error codes, a high-pitched engine squeak, rough idling, severe fuel economy drops, and intermittent engine stalling. The engine eventually developed a heavy knocking sound resembling a diesel engine. Currently, the check engine lamp does not illuminate, but all physical symptoms remain active and increasing in sever
2018 Chevrolet Trax engine problems
31 complaints (30% of all complaints for this car). Typical mileage when it fails: 65,000.
- owner complaints
- 31
- of this car's complaints
- 30%
- typical mileage
- 65,000
- crashes
- 0
- recalls
- 0
Which part fails
- Cooling system1
At what mileage
Complaints by mileage at the time of the problem.
Chevrolet Trax engine problems in other years
Specific symptoms reported on the 2018 Chevrolet Trax engine
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
What 2018 Chevrolet Trax owners say
Most recent owner complaints, unedited.
Turbo failed
The diver side fuse box started a fire in the vehicle. The tracking control system light was flashing on and the vehicle lost power. Filed claim with insurance company. Insurance company issued a total loss and took possession of the vehicle.
Both my control arms are loose and wheel baring is bad, plus a cracked catalytic converter. All of these are causing my car to be loud and burning smell, causing unsafe driving conditions for me and my children. Online states that the control arms are an issue with this vehicle make and model and have been recalled, however my VIN has not been recalled and I want to report this. improperly welded joints can fatigue and break, causing the lower control arm to partially separate from the vehicle. This can lead to a sudden loss of steering control and increase the risk of a crash. I have not gotten in an accident, but was at risk of this happening. My car is being worked on and it will cost me $800 for these repairs for the issues related to the 2018 Chevy traxs. I would like this VIN to be recalled and receive a refund for the work done to my vehicle.
My check engine light came on, I took my vehicle to Ken Ganley Chevrolet because that is where I purchased it. They claim they have no record I bought it there and at first refused service. I provided my loan documents that state I purchased it. Tim was in the service department, I brought the car in and he had it looked at. He said the issue is the turbocharger, which is a known issue with this year/make/model that GM knows about. The repair was under warranty, completed and the car returned to me. Less than 2 weeks later the check engine light came on and the diagnostic gave the same error. I took it back to the dealership and I got 3 different answers. One person told me it was an exhaust issue that was causing the turbo to overheat (the car is kicking out excessive amounts of carbon monoxide), the second person told me there was no issue and they weren't sure why the check engine light went off, the third person said it seemed like the exhaust and the overheating was a safety issue and it shouldn't be driven. They ultimately refused the repair and said bring it back if it gets worse. I called GM corporate to report the dealership and ask for an actual repair. They told me to take it to another dealership to be looked at. Multiple other dealerships have refused because the case is open with the original dealership. That Ken Ganley Chevrolet dealer is refusing to acknowledge a repair is needed. The car is continuing to kick out excessive carbon monoxide and smells like burning when driving. The engine chugs and doesn't get up to full speed. I requested goodwill reimbursement for part of the car from GM for failure to service and an unsafe vehicle and they have offered no solution because other dealers won't give a second opinion. The car is not safe to drive and is not being repaired.
The oil cooler/oil housing leaks oil on every single one of these vehicles, spanning many years, due to its plastic housing, mounted up against a hot engine. The cost of repair is between $2000-3000 at a dealership.
Car smoking under the hood not even a month after getting repairs done to it for the same issue of coolant loss. Replaced engine oil cooler, coolant housing, and turbo. Car started smoking again less than a month later and mechanic baffled at what it may be this time for there is no warning lights illuminated to point to the problem. The vehicle has had its regular maintenance on time.
2018 chevy trax turbo messing up loss of power and making noise
Engine oil cooler leaking with no dash lights causing burning plastic fumes only when sitting at an idle to enter car cabin causing passengers to feel unwell at times. With no warning lights for specific leaks or overheating warnings caused high repair bills at the shop. Also, probably causing engines to malfunction earlier than normal since the only sign is the smell of something burning when at an idle and no other warning signs that would be cause of concern to a mechanic or owner. This would only happen if the recirculating outdoor air.
Car filled with smoke and smell. Needed to replace the blower motor l, resistor, and pig tail or it would have killed my child.
Questions about the 2018 Chevrolet Trax engine
Does the 2018 Chevrolet Trax have engine problems?
Owners have filed 31 complaints about the engine of the 2018 Chevrolet Trax, 30% of all its complaints.
At what mileage do 2018 Chevrolet Trax engine problems start?
The typical (median) mileage in owner complaints is 65,000 miles.
Was there a recall on the 2018 Chevrolet Trax engine?
There is no recall for this problem on this model year.
What year does the Chevrolet Trax have bad engine?
The Chevrolet Trax model years with the most engine complaints are 2024 (58 complaints), 2017 (48 complaints) and 2016 (47 complaints).
Other 2018 Chevrolet Trax problems
Suspension 34Electrical 18Transmission 12Brakes 9Steering 9Acceleration 6Wheels 6Fuel system 5Driver assistance 4Airbags 2Body 1Seat belts 1Tires 1
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