How do you check them?
Are they tough to replace?
Use GM mounts or any brand?
The reason I suspect them, is recently I'm getting ridiculous amounts of knock retard, between 4k-5k rpm. I have way adequate octane (110), I've also replaced motor mounts, I have a tie-down, and the DP isn't hitting.
I've also noticed an "odd noise" when putting the car in reverse, very subtle, but it didn't feel right. FWIW, the car has 90k miles, and I guess the mounts are original. TIA.
Are they tough to replace?
Use GM mounts or any brand?
The reason I suspect them, is recently I'm getting ridiculous amounts of knock retard, between 4k-5k rpm. I have way adequate octane (110), I've also replaced motor mounts, I have a tie-down, and the DP isn't hitting.
I've also noticed an "odd noise" when putting the car in reverse, very subtle, but it didn't feel right. FWIW, the car has 90k miles, and I guess the mounts are original. TIA.