Why does the vibration increase after replacing new engine mounts?
3 Answers
Replacing new engine mounts can result in stronger vibrations due to reasons such as not replacing the mounting pads simultaneously, unsuitable mounting pads, or other faults. Mounting pads not replaced simultaneously: There are three engine mounting pads in total. If only one is replaced, it can disrupt the original vibration damping balance, causing increased vehicle vibration. Unsuitable mounting pads: Some vehicle models require specialized mounting pads. If the pads are unsuitable, they cannot provide effective vibration damping. Other faults causing the issue: Engine oil that is too thick or too thin can also lead to engine vibration.
I just replaced the engine mount but it's shaking even more, probably due to improper installation. The screws might not be tightened enough or the alignment is off, and the new mount isn't firmly attached to the engine, causing vibrations to transmit directly into the car. It's also possible that I bought cheap, low-quality parts—those inexpensive rubber mounts might have degraded and can't absorb vibrations anymore. Another possibility is that the engine itself has issues, and the old mount was masking the problem; replacing it revealed the imbalance. I suggest you go back to the repair shop immediately to check the installation details—don't try to fix it yourself, safety comes first.
Increased vibration after replacing the mount is mostly caused by installation oversights. Common issues include misaligned mounts, insufficient bolt torque, or incompatible aftermarket parts for the vehicle brand. Low-quality aftermarket components tend to harden and fail prematurely. Additionally, wear in other engine mounts may cause a chain reaction, making single-part replacement ineffective. Inspect all connection points and consider a comprehensive engine balance evaluation if necessary.
