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December 17, 2019 – GM Attempts to Sidestep Class Action Case. In late November, General Motors pressed Michigan District Court Judge David M. Lawson to dismiss a consolidated proposed class action lawsuit alleging the automaker’s 8L90 and 8L45 transmissions are defective. In its motion to dismiss, GM zeroed in on each of the …My 2nd GMC Acadia, 1st was 2008, very pleased, traded in w/160K, and bought 2012. 2WD, Charcoal, now 95K+ miles, since Aug 2012. For almost 30K miles now, hesitation, shuddering when climbing hills, especially over 40Mph. RPM vary 100-200, hit pedal, RPM to 3000, smooths drive. Brought to dealer several time, no codes at all.Most of the time, you’ll feel it when it engages. Service StabiliTrak Warning: Your Acadia’s “Service StabiliTrak” warning light is the number one indication that something is wrong. Cruise Control : If one of the wheel speed sensors is not working correctly, your Acadia may lose cruise control. Traction Control Not Working: Your …Yet another "newer" car that already has a drivetrain problem before 100k miles.This 2017 Chevy Traverse surges and SHUDDERS under load when the torque conve...Bulletin No.: 18-NA-358. Released November 30, 2018 March 11, 2019 – Corrected Acadia and Enclave Transmission RPOs. October 17, 2019 – Added the 2019 Model Year to the Impala and Acadia models and updated the Involved Region or Country section. February 28, 2020 – Added the 2018 and 2019 Model Year and Transmission RPO MHM to the XTS.I traded in the 2012 after the timing chain didn't even correct the problem. Dealership blew the engine shortly after my trade, found a faulty crank shaft bearing was to blame for that problem. They installed a new engine and have told me that the hesitation / shudder has gone away. Talking to the salesman that I purchased my 2017 Acadia from ...Jul 18, 2023 · My 2017 Premiere (180,000 miles) has a terrible shudder on acceleration but it doesn't do it all of the time. I was driving up to NY from FL and my check engine light came on and it threw 4 codes (P0174, P0171, P0442, P0496) for the purge solenoid valve, so I changed that when I got to NY. It is now giving me p0138 code. gig229. 208 posts · Joined 2007. #4 · May 23, 2013. The hissing noise is a refrigerant leak in the AC system. Your dealer will need to run a leak test on all the connections, hoses, and both evaporators to determine where the leak is. But I will tell you that on my 09 Enclave, both the front and rear evaporators had to be replaced as they ...Dec 17, 2018 · 2015 GMC acadia shudders and hesitates under heavy acceleration, symptoms started when ABS and stabilitrak started acting up as well, when thje computer hasan"t cut the abs out it triggers abs in ryth … read more Oct 10, 2017 · Vehicle shuddering or vibrating under load. As the title says, my 2007 Acadia with 85k miles has been vibrating under load when accelerating around 1500-2000 rpms. I would say between 2nd and 3rd gear. 2013 GMC ACADIA 96,000 miles -. Complaint - Most common reappearance is at -->. 1,800 RPM. 40 MPH. Under slight load. 5th gear (not exact) 5-20% Throttle (not exact) -->There are no codes in any monitors completed visual inspection of filters and sensors and tried different gas station of a couple weeks. Ran 4 tanks of 93 octane with Lucas oil ...Here are the most common issues that cause your Acadia to jerk when accelerating: 1. Misfiring Engine. A few things can cause an engine to misfire. More often than not, it’s going to be the spark plugs or coil packs that are the culprit. A misfire is the most common reason your GMC Acadia jerks while accelerating.June 18, 2023 by Jason. Your GMC Acadia’s torque converter is responsible for connecting and disconnecting the engine from the transmission, transferring power smoothly. When this process fails, it can lead to torque converter shudder. Causes of shuddering can include worn torque converter clutches or the gradual application of the torque ...A shake and/or shudder during light throttle acceleration between 25 and 80 mph (40 and 128 km/h) steady state driving when transmission is not actively shifting gears. A shudder feeling that may be described as driving over rumble strips or rough pavement. Shudder feeling is evident in both Drive and M7 modes.A worn-out brake system might cause your car to shudder when you take your foot off the accelerator. So, make sure to: Check brake pads for wear and potential replacement. Inspect rotors and calipers to ensure proper function. Evaluate brake fluid levels and quality: perform an oil change if necessary. Engine and Transmission.The GMC PAD is basically a futuristic motor home -- part apartment, part vehicle and part telecommunications center. Advertisement GMC has come up with a solution to the rising cos...2012 GMC Acadia. Asked by acadiadenali12 in Apopka, FL on February 26, 2015. It acts like a dirty or clogged fuel filter or a slip in the tranny. The check engine light is not coming on and there is no codes available. Took to a dealer and they stated nothing is wrong with vehicle...they suggested to clean the injectors.2 posts · Joined 2015. #1 · Nov 12, 2015. Hi new poster here. My wife's 2008 Acadias power steering pump has always made a whine noise. More so when turning the wheel. It has gradually gotten worse/louder and more noticeable even when not turning the wheel. Then when you first started driving it when it was cold yet and turning at low speeds ...

1. Misfire. Vehicle Speed: A Misfire can be felt at any speed, but is most noticeable at low RPM. A misfiring engine is one of the most common reasons your Canyon will shake when accelerating. A vehicle’s ignition system consists of spark plugs, coil packs, and maybe plug wires. If it is an older model, it’ll have a distributor and coil ...The shuddering/rumbling sensation can easily be confused with running over a rough spot on the road, so it isn't severe. The rumbling sensation is often accompanied by a metallic scraping/vibration sound from beneath the car (not from engine area). The car has 88,000 miles on it, and since one GM mechanic suggested this was likely a misfire ...Sep 16, 2021 · Some of us may have a known issue going on with our vehicles that is a cause of concern and simply irritating. Chevrolet, GMC shudder or shaking when your driving down the road at a steady or slight acceleration. This usually happens around 25 to 80 miles per hour. What is it? Several things could be the cause like tire balance or wheel balance. 1. Erratic shifting. One of the first symptoms of a bad or failing downshift solenoid is erratic shifting. If the downshift solenoid has any issues, it may cause the vehicle to behave erratically when downshifting. A bad or failing solenoid may cause the vehicle to experience hard or erratic shifting when slowing down or coming to a stop.1. Misfire. Vehicle Speed: A Misfire can be felt at any speed, but is most noticeable at low RPM. A misfiring engine is one of the most common reasons your Yukon will shake when accelerating. A vehicle’s ignition system consists of spark plugs, coil packs, and maybe plug wires.

My 2008 Mitsubishi endeavor had a shudder when accelerating between 35-45 mph. I can push through it eventually, but it usually happens when trying to keep the car in this speed range. ... Paul. Lead tech. Aoa. 847 satisfied customers. 2012 gmc acadia. low load driving has shudder at lower. 2012 gmc acadia . low load driving has shudder at ...1755 posts · Joined 2010. #7 · May 19, 2021. Years ago I owned an Acura MDX that had a vibration on slow speed left turns. The dealer said new rear differential at $3,000. My independent mechanic said there was a Tech Bulletin that said change the fluid. $64 later and a fluid change and the problem was solved. George.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. 2008 gmc Acadia shudders under acceleration usually at speeds. Possible cause: Problem Description. A shudder or vibration may develop while driving at speeds bet.