2012 Chevrolet Malibu: hesitation when accelerating

Filed Dec 31, 2024 · Airbags, Engine · SC

The catalytic converter and exhaust manifold are suspected to be malfunctioning. These components are part of the vehicle’s exhaust system, and their failure is believed to be contributing to hesitation and skipping during operation. Both components are available for inspection upon request. The hesitation and skipping reduce the vehicle’s responsiveness, creating a safety risk in traffic. This issue could hinder safe merging, overtaking, or maintaining consistent speeds. Additionally, malfunctioning exhaust components may lead to increased emissions and pose a risk of toxic gases entering the cabin if leaks are present. Check engine light displays. The problem has been confirmed by a professional auto mechanic during their inspection and diagnosis. The components have been inspected and diagnosed by an independent service center (the auto mechanic). They have not yet been inspected by the manufacturer, police, or insurance representatives. No warning lamps or error messages were displayed on the dashboard prior to the diagnosis. The symptoms, including hesitation and skipping, began approximately [insert timeline, e.g., two weeks ago] and have been recurring during normal driving, particularly during acceleration or at lower speeds.

Filed Aug 31, 2020 · Engine · 117,676 miles · TX

Engine stalls when slowing down or waiting for traffic light. Called mechanic for diagnostic check. He said ecs not functioning correctly. I was 10 miles from my home when the car started to stall and it stopped 6 times before getting home. Engine hesitated, had to pump accelerator to get it going and steering was difficult. Is there a recall for that problem?

Filed Dec 28, 2017 · Engine, Transmission · 33,300 miles · NJ

Stop at light, knocking noise starts & hesitation at next light. A mile later, check engine light turns on.codes p00011,p00014 p00366- from dealership #1. Had previous engine work done under warranty (which dearlership #1 tried to charge me $400. Until I pressed the warranty).I bought it there.service person reported:foreign debris on the screen of the cam position actuators she also reported: filter broke, or someone where I had the oil changed (valvoline) put a rag or bottle cap in my engine,needed a new one. She advise me to take the car to valvoline.after persistent questioning, she suggests, engine flush but no guarantee. Refused flush. Paid $133. For "diagnostic". Took to valvoline - they spoke to tech at dealership #1 who said filter intact but tilted.they viewed the filter, said it was fine but showed me the metallic sparkles in it. They mentioned it was tilted.they took pictures and have a video where they said a rag or bottle cap was not near engine. I have not view this tape.called gm - made a compliant against dealer - they escalate gm calls back. Advised take to dealership. Anyone, took to another - do not trust the original.gm dealership #2 - said filter had metal parts in it - they said it was crushed,asked to drop pain,quoted $350.dealer #2 - drops pan and says the following in an email and sent pictures:the following pictures show the vehicles oil pan removed and foreign debris in the bottom. Technician believes the plastic from the timing chain guides and visible metal in the oil itself. Advised need engine. Rebuilt is approx: $6000, or $7500 new. Car has 33k miles.timing chain belt failure.gm will not stand by their products that destroyed engine.two engine issues prior to current: stalled approaching a highway. Towed to dealership#1. Driving on highway/slowed from 50 to 20mph, trying to pull over then it accelerated.

Filed Sep 7, 2017 · Engine, Fuel system · 63,000 miles · IN

2012 malibu intermittent no start . Hard crank but won't start. Problem started a month ago, randomly wouldn't start had it towed to mechanic but they couldn't duplicate problem. 2 days later same thing, had it towed again. Started next day for mechanic. After 3rd tow it wouldn't start and they replaced fuel pump. 4 days later no start again, had it towed but of course it started the 4 days mechanic had it. I picked it up and drove it all day. Tried to leave in the evening and no start. It's back at the mechanics, going to replace fuss box. Hopefully this works. It has never stalled while operating but it does lose power while driving and hesitates. Had the vehicle towed a total of 4 times and 1500$ later car still isn't fixed. Mechanic is having hard time pin pointing problem. I travel out of town on business frequently and can't depend on this vehicle. I've read multiple posts about same issue it seems chevy would try to resolve it.

Filed Oct 27, 2015 · Acceleration, Driver assistance · 60,000 miles · MS

Power ESC, traction control, reduced power to engine, and tire lights all came on. Car would not go over 30 MPH. Car was hesitating and cutting off and once placed in drive car took off by itself with rpms at 3 and same with reverse, I took foot off brake and car took off in reverse with rpms a bit over 2. Air conditioning will not work steadily and its been to a few shops and brakes will not work properly and they have been changed twice.