Good evening. I got something I hope someone can help me out with.
My son’s 2014 Jeep Patriot had the transmission replaced recently, and ever since there has been a noise that he hears whenever he starts to accelerate, when he slows to a stop, and whenever the transmission shifts. He took it back to the shop that replaced the transmission, they put another one in, and the noise persists. Then they thought maybe it was a CV shaft, but even after that the noise is still there.
He sent me a video audio of the noise, about 33 seconds long. I’m wondering if maybe during the installation of the new transmission that something didn’t hooked up right, or bent, or backwards. I thought maybe it’s something with the brakes, maybe a plate that is mounted inside of the brake assembly. Who knows. But needless to say it’s driving him nuts.
I’m hoping that maybe someone here might know what to look for. I can even email the video he took.
Used trans? I see. That complicates things as it may be cause of noises. Trans may have issues.
The 2014 Jeep Patriot primarily features a
6-speed automatic transmission (6F24), which significantly improved drivability over the previously mandatory CVT. Some 2014 models, particularly 4x4 versions, may still have a CVT, while a 5-speed manual was also available. The 6-speed is generally considered more reliable, whereas the CVT is prone to issues.
I wish I was there to give a listen to the Jeep as it’s being driven, but my son is in Florida and I’m in Indiana. He says the transmission shifts normally while being driven, but that he hears the noise during the operation of the vehicle as noted in previous comments. It’s one of those things where you’re so in tune with your vehicle that when something is wrong, or there is a new noise, you notice it right away, and he said it started right after the transmission was changed out.
I’m thinking the cause is an installation mistake of some sort. I even thought maybe someone bent the plate behind the brakes and it’s rubbing against the rotor. But that’s just me spiff balling.
He’s taking it back to the mechanic, again, today and he’s gonna let them give a listen to the recording he got. I was gonna suggest that they put the Jeep on a lift, start it up and put it into gear and give a listen. If they can do that, then that should tell him if the noise is related to the transmission or something else in the drive train, CV axle, brakes, etc.
Dealership technicians frequently start cars while on a lift and put them into drive to diagnose drivetrain issues, check for suspension noises, or test wheel bearings. This is a standard procedure, often part of a multi-point inspection to check components while the wheels are freely spinning.
Off the wall, it could be a cracked flex plate. Maybe not in this universe but there’s always one. U-joints and carrier bearings also make scraping noises and maybe you don’t have carrier or center bearings.
I’ll let him know!