Most Common Car Issues

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MOST COMMON PROBLEMS

CADILLAC ATS 2015

The 2015 Cadillac ATS Luxury is a refined sedan powered by a 2.0L LTG turbocharged inline-4 engine, delivering a dynamic driving experience with rear-wheel drive. Built in Michigan at GM's Lansing - Grand River plant, this model features comprehensive safety with front, side, knee, and curtain airbags for all rows. Equipped with a Dual Overhead Cam (DOHC) valve train and Stoichiometric Gasoline Direct Injection (SGDI), it supports both gasoline and flexible fuel options. The ATS combines luxury, performance, and safety in a stylish four-door design.

Spec:

Engine Configuration

In-Line

Engine Model

LTG

Engine Number of Cylinders

Other Engine Info

Book Code: 0G, A. Aluminum. VVT, DCVCP(Double Continuous Variable Cam Phasing), E0-E100.

Problems:

Oil leaks

The LTG engine, being a turbocharged unit, can sometimes develop oil leaks around the turbocharger and valve cover gasket.

Turbocharger issues

Due to the turbocharging, the engine may experience turbo lag, reduced performance, or even turbo failure if not properly maintained.

Carbon build-up

Direct injection engines like the LTG can suffer from carbon build-up on intake valves, leading to reduced performance and efficiency over time.

Cooling system problems

The cooling system in the ATS can sometimes struggle to keep up, leading to overheating issues.

Timing chain wear

The VVT system relies on a timing chain, which can stretch or wear over time, leading to poor engine performance or even engine damage if not addressed.

High pressure fuel pump failure

The high-pressure fuel pump in direct injection systems can fail, leading to starting issues or poor engine performance.

Ignition coil failure

The ignition coils in this engine can fail, causing misfires and rough running conditions.

Pcv system issues

Problems with the Positive Crankcase Ventilation (PCV) system can lead to oil consumption and pressure build-up in the engine.

BUICK Regal 2015

The 2015 Buick Regal GS is a sophisticated sedan featuring a 2.0L In-Line 4-cylinder turbocharged engine. Safety is prioritized with curtain airbags for all rows, front airbags for the driver and passenger, and side airbags for both rows. This model supports both gasoline and flexible fuel options, offering versatility in fuel choices. Manufactured in Ontario, Canada, by General Motors, it boasts advanced engineering with dual overhead cam and variable cam phasing technology.

Spec:

Engine Configuration

In-Line

Engine Model

LTG

Engine Number of Cylinders

Other Engine Info

Book Code: 0G, A. Aluminum. VVT, DCVCP(Double Continuous Variable Cam Phasing), E0-E100.

Problems:

Oil consumption

Some Buick Regal LTG engines have been reported to consume more oil than usual, which could lead to engine damage if not monitored and maintained properly.

Turbocharger issues

The turbocharger in the LTG engine can sometimes fail, leading to reduced power and performance issues.

Timing chain wear

Premature wear of the timing chain can occur, which may result in the need for early replacement to avoid engine damage.

Carbon buildup

Direct injection engines like the LTG can suffer from carbon buildup on the intake valves, which can affect performance and fuel efficiency.

Coolant leaks

There have been instances of coolant leaks in the LTG engine, potentially leading to overheating and engine damage if not addressed promptly.

High pressure fuel pump failure

The high-pressure fuel pump can fail, leading to poor engine performance and difficulty starting the engine.