2010 Chevrolet Equinox: misfire or rough idle

Filed Mar 26, 2026 · Fuel system · 152,000 miles · WV

The contact owns a 2010 Chevrolet Equinox. The contact stated that while stopped at a red light or stop sign, the vehicle experienced severely rough idling before it stalled. The contact believed that the high-pressure fuel pump (HPFP) was the cause of the failure. The dealer was notified of the failure; however, the vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 152,000.

Filed Apr 18, 2022 · Engine, Steering · MI

The contact owns a 2010 Chevrolet Equinox. The contact stated that while the vehicle was at the dealer for the rear tire inspection, the dealer diagnosed that the timing chain needed to be replaced. The dealer replaced the timing chain; however, the failure recurred with the check engine warning light illuminated. The vehicle was then taken to Matthews-Hargreaves Chevrolet (2000 Twelve Mile Rd, Royal Oak, MI 48067) and diagnosed with rack and pinion, cylinder misfire, and catalytic converter failure. The dealer informed the contact that the rack and pinion and catalytic converter needed to be replaced. The vehicle was not repaired. Additionally, the windshield wipers failed to operate as needed, and the vehicle would remain on after the key was taken out of the ignition. The manufacturer was made aware of the failure and reimbursed the contact for the timing chain replacement. The failure mileage was unknown.

Filed Sep 5, 2020 · Engine, Fuel system · 150,000 miles · MD

Vehicle is burning astronomical amounts of oil, even when car is sitting. Car runs rough and idles and acts as if it will stall out. The ABS and traction control lights have come on. Car acts like it won't start and takes a few times before it actually starts up. Have replaced so many parts and of course at 155,000 miles for a 2010 equinox we don't qualify under the pending lawsuit. Car is parked because it uses so much oil.

Filed Aug 30, 2020 · Engine · 117,000 miles · MN

Code p0300- cylinder #4 misfire, extreme blow by from internal failure. Went into complete shutdown on highway

Filed Jan 20, 2020 · Acceleration, Driver assistance · 98,546 miles · IL

Vehicle was in motion approximately 45 MPH when check engine light came on, message then appeared that engine power is reduced and speed immediately dropped to around 15 MPH and then to a rough idle at approx 5-10mph. Was almost rear ended by vehicle traveling behind me. I was able to limp remaining 2 miles home and contacted dealer. Appointment was made and dealer reported code p2135 and replaced throttle body..dealer said throttle didn't know up from down. Dealer stated this is a common problem with the equinox. I have read many complaints online about this same issue with other owners reporting being put in a dangerous position with the sudden drop in speed like we were. I contacted chevy gm and they said there were no recalls. If rapid acceleration has been treated by other companies as recall worthy, I dont understand why chevy does not consider this recall worthy. I have attached the repair report with this complaint.

Filed Aug 26, 2019 · Engine, Fuel system · 125,000 miles · IN

Car was dying when I tried to pull out onto the road, city street from a stop sign.was almost hit. My grandaughter is just learning to drive and I am scared to death to let her drive it . Running after key taken out, running very ruff. Check engine light kept going on & off as well as stabli trac warning.smelled like catalytic convertor burning took to dealer to have diagosed and they said high pressure fuel pump needed to be replaced. Engine had high content of fuel scanned and had excessive amaount of rich codes and misfire codesthat there was fuel getting in my oil said there was a recall but not on my VIN. Saw other complaints same problem that were told VIN wasn't right. Cost me $500.00 to fix bought this car brand new and had to get a new engine at 62,000 and new pistons & cracked manifold replaced at 102,000. I had taken the car to dealer a few years ago for same issue and engine light had gone off and they said they could not find anything wrong. Out of warranty now and finally diagnosed the problem.getting ready to buy 2 cars and I will never by another chevy or gm car again .going with the foreigns. I think these cars are all lemons.I have seen others that were also told wrong VIN but same issue, needs investigated. I have already recieved invitation for class action suit on this darn car! Really

Filed Jul 8, 2019 · Engine · 58,394 miles · PA

At 58569 miles the engine light was on. The catalytic converter, gasket, and nut were replaced. I began complaining about oil consumption at 72388 miles. At 77313, the engine light was flashing. The dealer got the code p0300. There was a misfire in cylinder #2. The dealer replaced the #2 coil and gasket as well as the spark plugs. At 91968 miles the engine light was on and the catalytic converter was replaced. At 103123 miles the engine light was on and throttle body gasket replaced. At 105185 miles the engine light on again. Replacedspark plugs, reprogramed ECM and TCM. There was a misfire in cylinders 1-3-and 5. The dealer also performed major throttle body service and cleaned the intake. At 112358 miles the car was towed to dealer. The engine light was flashing and dealer said a misfire in cylinder #4 and oil wad found in #2 spark plug well. I check my oil level every week and have been doing so for months. I am putting in at least 1 1/2 quarts of oil every month. I change the oil every 3500 miles whether the vehicle indicates the need or not. I have read many complaints on different websites. The dealers response is that they can get me into a new equinox. It seems that this oil consumption problem is known by chevy but this SUV has never been recalled for this problem.

Filed Jul 25, 2017 · Fuel system · MI

Fuel pressure regulator 1 exceeded control limits pressure too high. Problem with malfunctioning fuel pump similar to 2.4l ecotec engines from gm. Models from same year and engine however not all vins covered. Engine misfires, stalls, smoking. Occurs while running with highway driving.

Filed Jun 6, 2016 · Engine · 64,000 miles · OH

While driving on i80 in rural pa engine started missing intermittently. When I exited the road to investigate the engine immediately started to run very rough and the information center was showing a problem with stabili-track - which made no sense since it was summer and the road was dry. After vehicle was shut off for awhile and restarted it seemed to run more smoothly. However, as I accelerated back up to highway speed the misfiring returned. We continued to limp along at a slower speed with emergency flashers operating while we searched by phone for the nearest gm dealer. After several different attempts gm roadside assistance was able to identify a dealer about 20 miles away. We successfully contacted them and reached their location where they were able to diagnose the problem as a failed #3 cylinder coil. A fix was completed and we were able to resume our trip. I estimate we drove about 60 miles pretty much in the middle of no whee on 3 cylinders before being able to find help. Two days later on the return leg of this same trip the windshield wipers also failed in a severe rain storm while in a several mile construction zone with no berm. Only a miracle prevented a multiple fatality multiple car accident. This was a well maintained vehicle with only 64,000 miles that had never previously had any significant problems.

Filed Dec 23, 2015 · Engine · 72,000 miles · VA

My equinox engine light came up while driving in the highway, I hear a noise in the engine every time I accelerate, and the truck would shake a bit, put the SUV in the machine and got a p0300 code for misfire, the coils and sparkplugs where loose and out of place for the second time in less than seven months.

Filed May 29, 2015 · Engine · FL

I had to purchase an entirely new a.c system at 50k miles. They put the hose directly on the engine when building the car. Therefore, the heat burned a hole into the hose which caused the system to overheat, resulting in the need for the entire a.c. System to be replaced. A month later, the car began stalling and misfiring while at stop lights. Then, it progressed to misfiring while car accelerates. I was on the interstate when my car completely shut off! I was lucky to pull off to the side road as I had my 5 year old daughter in the vehicle with me. The check engine light turns on and off randomly. Apparently, at 50k miles, the computer system needed to be replaced. This is apparently the cause for the issues (per a mechanic). I've replaced the battery on this car 3 times. I'm still paying the car off and have put so much money into it from it falling apart at 50k miles!

Filed May 29, 2015 · Engine · FL

My engine rattles and makes a loud fluttering sound accompanied with the misfiring and hesitation with acceleration. I previously wrote a complaint and forgot to mention it.