Thumping at higher speeds through gas pedal when accelerating

[Stretch]

Hey guys,

Simple problem. I feel a pulsing through the gas pedal when accelerating at higher speeds. I can also feel it if I floor it and shift from say 3rd into 4th on a highway on-ramp. From my research people who have a similar problem say it's likely motor mounts. I have stock psm and dsm but a jbr 88 rear mm. Do you guys think it could be the stock mounts that have taken a dump? Or is it possibly other stuff. Car has approx. 285k km on it.

Thanks,
eric

[Hyperion]

285k? Yup, very likely they shit the bed. Either post pictures so we can confirm or take it to a mech to replace. Simple job to do by yourself if you want to save some money.

[SomeGuy]

Probably passenger side mount...they're known to go.

[Stretch]

285k? Yup, very likely they shit the bed. Either post pictures so we can confirm or take it to a mech to replace. Simple job to do by yourself if you want to save some money.

The passenger side doesn't look torn or damaged from the top and I can't see the driver side without removing battery etc. I have noticed a few drop spots on the driveway that are fairly fresh and aren't drying up so they must be an oil, and I'm thinking it's from the driver side mount. I have no trouble doing the work myself, as it's the greatest pleasure of owning a car for me. Since i already have the 88duro tmm, would it be fine to go softer for the other 2? I don't need to pretend I'm in a racecar and ruin my spine from having all 88duro hah.

[Stretch]

Probably passenger side mount...they're known to go.

I'll have to check more thoroughly from underneath when doing an oil change soon, but I think it might actually be the driver side mount as I noticed some fluid spots on the driveway that seem to line up roughly with that mount's position.

[SomeGuy]

Drivers side mount (transmission mount) isn't oil filled, only passenger side.

[Stretch]

Then I hope it's the passenger mount dripping, or perhaps I'm just too sloppy when topping off the oil haha. Either way I hoped to change the mounts when I could afford it and that time might be coming up soon. Especially if they are putting the engine in a dangerous situation.