Vibration at idle and acceleration after hitting a deer

mrjay62 · Post by **mrjay62** » 20 Mar 2021, 16:07

Hi VTI
No signs that the subframe shifted,
I have a scanner but unfortunately I'm unfamiliar with it checking it out now..Autel Maxsys MS 908BT.
This is at idle. 2nd picture is at 2k rpms. Thanks maybe this makes more sense to you

mrjay62 · Post by **mrjay62** » 20 Mar 2021, 16:19

Found this also not sure how to read it Yet.
This is at idle.

mrjay62 · Post by **mrjay62** » 20 Mar 2021, 16:26

Picture didnt go thu.

Post by **vtl** » 20 Mar 2021, 16:52

Fuel trim looks good, no cracks in intake.

Inspect the torque rods then. They should not be tensioned or you'll feel vibration at idle.

mrjay62 · Post by **mrjay62** » 20 Mar 2021, 17:39

Ok thats a relief.
No cracks in the intake that I can see even checked with a inspection mirror it's been sprayed with throttle body cleaner Looking for a leak didn't find anything.
You lost me , torque rods?
Are you talking about the mount for the tranny front (wishbone).. if so I already replaced that one with older I had, older but never used for more than a week The blue bushings one...
At the time with that one I felt everything. .. now it's not making a difference.
If i can tomorrow I'll try and take a picture of the passengers side mount, to me it looks like it's sitting on the subframe. New one has been ordered. The other 3 mount aren't that old maybe 3yrs and look in very good shape. The engine doesn't rock back and forth if power brake it.. The 2 lower front and rear are frim not leaking and the upper still looks new.
I guess I can order a new Trans mount.
The old one 3yrs old looks good, they all are, there is no separating nor does it feel sloppy in the Trans mount, wishbone, torque rods...
Thanks for your feedback.

Post by **oragex** » 21 Mar 2021, 00:23

This is that a broken mount looks like. This one fails when we lower the subframe (or jack the engine). I wrote some replacement suggestions in the video description
May also suggest inspecting the brakes and the caliper mounting bolts and sliding pins. May also look at the control arm bushings with the wheel lifted and removed and inspect the brake hose at the caliper if it was never replaced

mrjay62 · Post by **mrjay62** » 21 Mar 2021, 01:04

Hi Oragex
I haven't taken the mount off just yet I'm going by what I seen, what I seen or think I saw is that on both sides there is no gap under either side, it looks like it's just sitting on the subframe. At that time I wasn't really giving it much thought I had the wheel off to crank the engine over to check the timing thought maybe some how I jump a tooth.
Brake line are newer the caliper pins are stainless had a friend make them and the boots are about a year old . I was having a problem with the pins always rusting and the boots deteriorating causing binding on the caliper now they work just fine..
I think I'll have time tomorrow to remove that mount and see how worn-out it is. And take a picture. Other than this vibration going on at idle and at the beginning acceleration
the car seems fine ,shifts fine, runs down the road with no issues. I may remove the Flux capacitor and have it recalibrated.
I had it up to 87mph at almost 2700 rpms. Which it the norm for this car.
Before anyone mentions wheel bearings or axles they were replaced over the winter, just because it's been a while... all courtesy of the CCP. So replacing them to me was coming and I was bored out of my mind...

Thanks for your input.

Post by **abscate** » 23 Mar 2021, 04:04

I’ll pm you mrjay.

I’m in life transition at moment splitting time between upstate Albany, Ithaca , and Long Island. I’ll see if I can’t roll out your way soon.

Post by **foggydogg** » 23 Mar 2021, 14:09

+1 on the motor mount; hard braking action followed by gently pooching the deer could have shifted it enough to cause a change. same is true for the upper torque rod/bushing. If it only showed up as a direct result of the deer wrestling match - and you don't have any fur caught in a brake rotor or some such - replacing the mount you have on the way will at least cure a known ill.

mrjay62 · Post by **mrjay62** » 23 Mar 2021, 16:44

Hi guys...

I'm still waiting for the for the torque and passenger side mounts they were supposed to be here today now it's said Thursday.
I'll see if that does the trick. If not I'll be picking everyone's brain again.
Im out of ideas. I checked for vacuum leaks over and over , pulled each coil all are contributing no evidence of arcing off/thu the boot,replaced plugs,pulled each injector one at a time with the motor running all seem to be working fine,checked that the subframe didn't shift the other 3 mounts seem fine.
Next I'm thinking of pulling the throttle body and clean that. That's all I got so far.

Thanks guys

Vibration at idle and acceleration after hitting a deer

Re: Vibration at idle and acceleration after hitting a deer