In my opinion that amount of movement is on the high side of normal but as long as there are not clunking/clanking noises (torn/broken mount) you're going to be okay

 

I have a kick-shake when put on gear.

 

Have you checked the rear solid mount?

 

I don't know where to look. No info in manual about rear one. Only front and right (for some odd reason w/o left).
Do you have any info how to check solid one? What can happen to solid one, by the way?

 

I don't know where to look. No info in manual about rear one.

The solid rear mount is #9

http://www.gmpartsgiant.com/Page_Pr...=MH1&mCode=6KE69&majorIndexID=00&SupplGroup=80&minorIndexID=6K00-004&SortKey=58

 

the other two mounts are trans mounts

 

Left and rear one?

 

yes.

 

Well, I didn't know that. Will check this out...
Thanks!

 

that's what i was talking about when you initially contacted me via PM

the other mounts being worn will allow a good mount to flex more than it should
although the movement isn't really the concern here the clunk definitely is

 

So, you want to say it is fine?

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that's what i was talking about when you initially contacted me via PM

the other mounts being worn will allow a good mount to flex more than it should
although the movement isn't really the concern here the clunk definitely is

Is it was your last message? Because the last message was blank. Just quoted text.

 

Just for comparison, I just tested my '01. My oldest hydraulic mount is about 2 years old, solid mount is original, just hit 85K. Brake torquing to between 2,000 and 2,500 RPM, my engine moves as much as yours does when shifting at idle. It twitches when changing gears at idle.

 

So, you want to say it is fine?

If that was for me, no, I think it's excessive, and I think your clunk proves that.

 

But you just said you have same movement as I do. So, you got problem too, don't you?

 

No, read my post again.

Just for comparison, I just tested my '01. My oldest hydraulic mount is about 2 years old, solid mount is original, just hit 85K. Brake torquing to between 2,000 and 2,500 RPM, my engine moves as much as yours does when shifting at idle. It twitches when changing gears at idle.

The amount yours moves when shifting at idle, is the same amount mine moves when torque braking to between 2,000 and 2,500 RPM. Mine barely moves when shifting at idle. In other words, yours moves a lot more.

 

hmmm i wonder why that message didn't make it

but yeah my main point in that last PM was that if everything is bolted up correctly and you've still got movement you've either got a defective mount (which it doesn't really look like) or other mounts are worn out allowing for the extra movement

 

Yes, I found them in transmission. But so far as I saw it is very confined area... Hm... But manual for solid one way easier than for front one and right one for sure.

 

Is the only way to check rear one is drop subframe again?

 

Am I pioneer in solid mount problem?

 

Nobody would put a solid mount in a luxury car. It would make the car very uncomfortable. Switching from hydraulic to a regular rubber mount would be normal as it would save money and not cause much extra vibration. People only put non rubber mounts in sports cars to drive on the track.

 

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Nobody would put a solid mount in a luxury car
actually - ALL our Cadillacs HAVE a solid mount -
along with 3 hydraulic/rubber mounts -

scanssystems was referring to checking the solid mount currently on his car -

 

I have a hunch he's talking about a a solid steel mount as opposed to a solid rubber one.

 

No, I'm talking about rear rubber one. No metal mounts. Everything is OEM and the way it suppose to be. I'm not going to put metal.

 

I was referring to Mr. Electric in post #144.

 

Ouch.. got it

 

Yes I meant that nobody would use solid steel mounts on luxury car. I need to replace some motor mounts on my 04 Deville. I would opt for rubber mounts in place of hydraulic to save some cash any day. If you want a really super smooth new car ride quality out of a high mileage older car you need to replace the struts, bushings and various other components like bearings and ball joints. My co worker made an old Honda ride like a new car. He spent way too much money. I went the easy route and just bought a brand new Honda fit. It rides like a new car because it is brand new. With my 04 Deville I really want to stick to the essential repairs. You will never get back money spent on ride quality related repairs.

 

I got your point. But my concern is not a luxury ride, my concern is possible damage to transmission, cooling and AC. "Luxury ride" as additional bonus to working car. :cloud9:

 

Those lines are flexible , they will not break. Worn mounts will not cause too much trouble just extra vibration. A broken mount will cause problems but I suspect your mounts are just worn out not actually broken. You can spot a broken mount because the motor lifts up, way up under power. Most mounts are designed so the rubber can fail but there is still metal keeping the motor from moving too much.