Bad Transmission Mount Symptoms: 7 Signs to Look For
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- čas přidán 6. 09. 2024
- Bad Transmission Mount Symptoms. In this video I explain the common signs that your transmission mount may be failing. Bad transmission mounts can cause noticeable vibrations, clunking noises, difficulty shifting gears and other problems in your car or truck.
Recognizing these bad transmission mount symptoms early on can help prevent further damage to your vehicle's drivetrain. Replacing worn transmission mounts promptly can also avoid unnecessary repairs down the road.
In the first section, I cover one of the most noticeable transmission mount issues - excessive drivetrain vibration. You'll often feel pronounced shaking through the floorboard, gear shifter, or seats when accelerating if mounts are worn. Next, I discuss the clunking or banging noises that are indicative of bad engine/transmission supports. Worn mounts allow too much movement in the powertrain, resulting in abrupt knocking sounds when shifting.
Later in the video, I talk about how gearbox mount problems can make smooth shifting difficult or impossible. Bad mounts throw off drivetrain alignment leading to transmission popping out of gear and grinding noises. Excess engine movement during acceleration/braking as well as premature component failure are other symptoms I cover related to damaged transmission mounts.
Additionally, I outline some other issues worn engine/transmission mounts can create - fluid leaks at transmission seals, uneven tire wear from alignment changes, and warning lights triggered by excessive vibration. Knowing what signs to look for when your mount goes bad helps avoid cascade failures across other systems.
Towards the end, I demonstrate how to safely inspect engine and transmission mounts yourself when troubleshooting. I also discuss the repair process for replacing damaged mounts, noting that forward gearbox mounts often require more work. Being able to identify bad transmission mount symptoms provides early detection so you can get them replaced before problems get worse.
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niot sure you can help when driving atr any speed on my chevy hhr as i let go the pedal i feel the car surge or jump a little like i was tapping on gas pedal I thought it could be throttle body sensor synptons are when you accelerate it jumps or surges mine is doing opposite also as i was checking under the car by trans i can move the trans a liitle with no effort don't know if that is normal or not trying to get this car to pass inspection for emissions changred everything emission related so far zero whenewver i cler codes and rec herck it it says something diffderent it still pints to 02 sensors both of them which i replaced ,new map sensor am at wits end from my view very little room to see trans mount looks good but cannot tell Tired Mechanic JRo
Got a good question for you:
2012 Nissan Pathfinder V6 engine 4X4
Wile driving if you step OFF the gas and step ON in again the car/transmission will jerk.
Also when stepping OFF the gas when the RPM needle will jump real quick and then settle.
And when coming to a stop, the RPM needle instead of going down gradually, it will drop quickly from a 1000 RPMS TO 500 and then settle when fully stop.
P.S. at iddle the RPMS are normal.
Your take/diagnosis on this one?
The issues you're experiencing with your 2012 Nissan Pathfinder V6 4x4-jerking when you step off and back on the gas, the RPM needle jumping, and the rapid RPM drop when coming to a stop-are indicative of potential problems with both the transmission and the throttle body.
1. Potential Transmission Concerns: Nissan vehicles, particularly those equipped with CVTs (Continuously Variable Transmissions), have a known history of issues such as jerking or shuddering, especially at lower speeds or when shifting between gears.
This can be due to several factors, including worn-out components within the CVT, like belts or pulleys, that are not holding up well under stress.
This kind of wear and tear can cause the transmission to struggle with smooth power delivery, leading to the jerking sensation you're feeling. Additionally, problems with the torque converter, which is supposed to lock and unlock smoothly, can cause similar issues, particularly during transitions between acceleration and deceleration.
2. Throttle Body Issues: The rapid fluctuations in the RPM needle, especially the sudden drop to 500 RPM when coming to a stop, are often linked to a dirty or malfunctioning throttle body. If the throttle body is clogged or not functioning correctly, it can cause erratic idling and throttle response, which aligns with the symptoms you've described.
A dirty throttle body might not trigger a check engine light but can still lead to significant performance issues. Recommendations:
Throttle Body Cleaning: Given the symptoms, it would be wise to start by cleaning the throttle body. This is a relatively simple procedure that can resolve issues related to poor idle and throttle response.
Transmission Inspection: A thorough inspection of the CVT is also recommended. Ensure the transmission fluid is at the correct level and in good condition. If the fluid is burnt or degraded, it could exacerbate these issues. Additionally, consider having a professional check the transmission's control modules and the torque converter.
Hope this is helpful!
D max fury 2016, jerks every time i press or depress the accelerator pedal in 1st, 2nd, 3rd gears. Not so noticeable in higher gears. All readings zoom ok, fuel, engine, dpf, o2, plugs. Serviced, fuel filter replaced. Today checked the gearbox and engine mounts. Mechanic said let's start by replacing gearbox mount/s. Apparently there is only one. Engine mounts next if first didn't help. Will check the oil level tomorrow. Only 70k miles..
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What happened w this? I have jerk when on or off the accelerator. I think my one mount might be bad
Thank you. Could a loose mount cause a misdiagnosed bad transfer case?
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I have this issue just when you are going like 20-50 could it be the lower engine mount
Hi, yes worth checking that.
I only have bad shaking while in reverse could this be the problem or is it trans related
Dude I have the exact same thing
Rear motor mount?