2016 Chevrolet Volt: engine overheating

Filed Jul 30, 2024 · Engine · NY

The EGR valve failed, blew up a fuse, and the internal combustion engine started to overheat and run very roughly and unsteady. I almost lost control

Filed Mar 24, 2024 · Fuel system · TX

The EGR valve failed part way through a long drive between cities while at interstate speeds. This caused the vehicle to produce a warning about reduced propulsion power (as well turn on the check engine light), and it became difficult to maintain speed with the surrounding traffic. I could maintain speed, but only in electric-mode, and my battery didn’t have enough energy to get me to my destination on that power alone. While in ICE mode (internal combustion engine mode) it would also quickly overheat. I reached my destination by repeatedly swapping between ICE and battery modes, to both extend my vehicle’s range as well as mitigate overheating. Upon arrival at a dealership, I was informed there’s a nation-wide shortage of EGR valves for my model of car. Despite escalating the issue with GM/Chevy’s support staff, they cannot locate an available EGR valve. This shortage has lasted for more than 4 months now and my car remains stuck in a distant city. This part is necessary to operate the vehicle safely, but they have not been producing enough of the part.

Filed Dec 2, 2023 · Engine, Fuel system · OR

Driving 72mph down I5 interstate the display notified me with a check engine light with two errors, enigne propulsion reduced and engine overheating. I pulled over to the side of the road and called a tow. This was a very traumatic event. I had my partner and my 2 year old daughter in the car.I just purchased this used vehicle from a Toyota dealer the same day. It has 63k miles on it and still under powertrain warranty. I literally drove the car 45 miles. TOTAL. I have spent more time towing and fixing this car than actually driving it. This is a total lemon. I need a refund from GM and all the pain and suffering that this caused my family.

Filed Dec 2, 2023 · NY

On 2023/09/09, my Check Engine Light came on, and my car showed a "Reduced Propulsion" warning. As I continued to drive home, the car later began overheating, requiring me to reduce speed & stop frequently to let the car cool down. The local Chevrolet dealership diagnosed it as a failed EGR valve that caused the "non walk home" fuse to blow, which also disables the car's Engine Coolant Thermostat Heater (hence the overheating). Also three months later, this part is still on backorder with no estimated time of delivery.

Filed Apr 6, 2023 · Engine · PA

Our 2016 Volt was cruising at 65 mph on a major interstate highway (HOLD mode) when out of nowhere the check engine light came on followed by a warning message "Propulsion power reduced." We managed to pull off the highway, but a few minutes later navigating on local roads, we received another message that the engine had overheated and was shutting off. Fortunately, there was a chevy dealer only several miles away, and we made it there slowly under EV mode. They later traced the problem to a failed exhaust gas recirculation (ERG) valve. It was replaced under warranty. The whole experience was terrifying. We also own a 2017 Volt, and now we are afraid that it could also experience the same problem without warning.

Filed Oct 20, 2022 · Electrical, Engine · OH

While on a road trip, we were traveling on a rural highway at roughly 55 mph. We received a warning message on the dashboard stating that "Propulsion power was reduced" and the engine began running rough, with surging noticeable based on throttle position. We also noted that engine temperature was rising above what was typical for the vehicle. The vehicle was able to maintain highway speed, and we were able to limp the vehicle to a safe location. Based on a web search, we were able to diagnose the issue (a failed EGR valve) as well as a way to limp the vehicle to a local dealership. They made a change that allowed us to limp home safely (unplug the EGR valve's electrical connector and replace the blown fuse under the hood). The vehicle was taken to a Chevy dealership when we made it home. The failure we had diagnosed was confirmed, and the component was replaced. The repair was not covered under warranty, and cost a significant sum to repair (1139.91). Additionally, this appears to be a very, very common failure for this make and model of vehicle- to the point where there is so much demand for this repair to be performed that these components (the EGR valve specifically) are difficult to obtain from Chevy. Additionally, the failure mode is such that when the EGR valve fails, it pulls excessive currents, and blows a fuse that also controls a number of important engine cooling components, leaving engine cooling significantly compromised. If we had been going faster, or if the weather was warmer, or if the load inside the vehicle was heavier, it would have been easy to overheat the gas engine and leave us stranded. I am concerned about the incidence rate of the failure, (based on online reports) the relative small number of miles on the vehicle when the failure occurred, (~57k) and the possible knock-on effect of the failure of the gas engine's ability to cool itself due to a relatively unrelated failure.

Filed Sep 9, 2022 · Engine · PA

Vehicle suddenly experienced "reduced propulsion mode" on the highway. Multiple codes were triggered in the ECM. Root cause of the problem was the EGR valve which is on a shared circuit with multiple other components including a water pump which causes the car to overheat.