The 97 needs the front and rear transmission mounts replaced to cure a major grinding noise during acceleration (I hope its the mounts!)

I have ordered the mounts from Rockauto, they were pretty reasonably priced.


I have access to the FSM, but I am looking for hints/tips for the replacement. I have access to Ed's shop with lift, but its about an hour away. Would it be worth it to drive that far to have access to the lift? or can this be done just the same in the driveway at home?

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

Anchor... I've heard bad things. You may want to cancel that order and get something a little better.

The front mount is pretty easy: Remove (3) 15mm mount-to-frame bolts, jack engine/trans up, remove (3) 13mm mount-to-trans bolts, remove (1) 18mm bellhousing bolt. Wiggle mount out and replace with new.

The rear one, I really don't have a tip for that one, other than be prepared to invent some expletives you've never even heard of. They are not easy at ALL. Someone else will surely chime in with advice.

And yes, for gods sake use the lift. If you do it on your back you will be sorry. It's worth the drive.

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Mods: Clear corners, gutted airbox, Alpine CDA-9886. Plans: 4x SensaTracs, high-flow, FM 80, 3.5 pulley, and for gods sake some good rubber.

I'm not really concerned about the longevity of the mounts, I plan on selling the car as soon as I'm done with these mounts. Thanks for the heads up though.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

The front one is a piece of cake... you replace that one from under the hood as opposed to under the car, so no lift required. Support the tranny with a jack and a board to distribute the load when you remove the mount.

The rear one may be a bit more difficult, but very doable without a lift. You'll want a set of jack stands to set the car on while you use the jack to support the transmission as before. There are (6) bolts total to remove and the mount will come out. Only thing I'm not sure of is how easy it is to physically remove the mount if the trans is still in place (my whole engine and trans were out of the car, so there was lots of room to move the mount). You'll want an 1/2" or 13MM (either will work) open end, or box end ratcheting wrench for the bolts between the mount and the trans. Can't remember what size the other ones are. Also, the highest of the bolts between the mount and the trans is easiest to get at from the drivers side wheel well, the others from underneath the car.

Good luck.

_________________
~Adam
'99 SSEi
'02 Volvo S60 AWD 2.4T
'02 Jeep Liberty Sport
'89 Chaparral 187XL w/ 4.3L I/O Mercruiser
'00 Cannondale Jekyll 900SX
Follow me on twitter: adumb

In response to alec_b: getting that rear trans mount bolted up was the part that I dreaded most about putting the engine / trans back into my '99 SSEi, but I was surprised at how smoothly it went. When I took those bolts out, I was inventing new cuss words...mainly because I didn't have a box end ratcheting wrench of the correct size. Before I even started the re-installation of the engine, I got the right tool for the job, and it went smooth as silk. It took about 15 minutes. Oh, and I didn't have the luxury of a lift for my project either...so It can be done.

_________________
~Adam
'99 SSEi
'02 Volvo S60 AWD 2.4T
'02 Jeep Liberty Sport
'89 Chaparral 187XL w/ 4.3L I/O Mercruiser
'00 Cannondale Jekyll 900SX
Follow me on twitter: adumb

If the front mount is easy like you say, I'm going to replace just the first and take it for a test drive to see if it fixes the issue.

If I do the rear and its still making noise, I might have to do the dogbone also.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

I replaced my front mount with the Anchor one last week, I actually gained a rubbing noise (wouldn't quite call it grinding) at mid-throttle. Clunkiness is still there, but throttle response has improved - the powertrain doesnt seem to be torquing back anymore.

I'm thinking dogbone next...

_________________
- Jerry // temptingf8.com

Past: 95 SSEi (June 2010 COTM) -- 04 GXP (July 2011 COTM)
91 Honda Civic Wagon DX 2WD (fuelly) -- 202,000km -- 92hp -- Autocross Warrior
09 White Hot G8 GT -- 131,000km (fuelly) -- Kooks 1 3/4" Long Tube Headers -- Solo Catback Midsection -- Hooker Maxflow Mufflers -- Pat G Tune -- Rotofab Intake -- Tein S-Tech Springs -- GXP FE3 Dampers -- BMR Subframe Cradle Inserts -- BMR Subframe Connectors -- Forgestar F14 Gold 18x9 +40 -- Michelin Pilot Super Sport 245/45/18 -- Maverick Man Carbon Fiber Spoiler

I replaced the front mount on my 95 with the Anchor from Rockauto a few months back, very easy to install. I haven't had any problems with mine.

_________________

2002 Buick Lesabre Custom L36 Ming Blue Metallic/Gray Cloth 78K
2010 Silverado LTZ Crew 4x4 L9H NHT Black Granite Metallic/Ebony Leather 14K
2013 Enclave Premuin AWD LLT White Diamond Tricoat/Coco Leather 11K miles
2001 Wellcraft Martinique 2400 Merc 5.7L BIII 327hrs

1995 Bonneville SSE L36 Dark Polo Green Metallic **R.I.P. 4/28/10 236,400 miles**

Holy crap! The mounts arrived today. I ordered them at 10pm Tuesday, it shipped out 4pm on Wedneday and it was on my doorstep before 9am today (Thursday)!!!!

Let the work begin.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

I have an Anchor mount on my car and haven't had any trouble with it as far as durability goes...

That being said, it transmits vibrations a LOT more than the AC Delco...I kinda wish I'd gone with AC Delco for that reason. It's kinda weird that my 4.3 powered S10 is now the "smooth" idling vehicle. o.O
.
.
.

_________________
-Dan



-2008 Chevrolet Malibu LTZ - 3.6 VVT V6, six speed manumatic, 49,000 miles, loaded. Silverstone Metallic - Ebony/Brick leather - 14.5 sec. 1/4 mile time stock
- S10 - The luxury truck - 4.3 Vortec V6, 68,000 miles, 3.42 gears, towing package, leather, wood, sound, HID projectors, boosted halogen foglights.
- 1997 Buick LeSabre Limited - sold but never forgotten

Well I tinkered on the car a lot today. I got the mount replaced quite easily, I'm glad I didn't drive to Ed's to use the lift, it would have just made things harder LOL.

The front mount was definately shot, but it wasn't causing the grinding. I took it for a test drive immediately after the swap and it was exactly the same. I was pretty sure its not the rear trans mount, so I didn't even mess with it.

I took another look at the TAM mount and decided to take it off to have a better look. It came out pretty easily and I noticed that the metal "tube" was amost completely seperated from the rubber. Looking at how this mount is designed to work, I figured the way it was failing shouldn't be causing the grinding. The engine is pulling down on the mount. However, when the engine is accelerating, the engine rocks back and the TAM actually rubs against the metal engine bracket. I REALLY want to narrow this down, but I don't wanna be tossing money on this car like its nothing. Rockauto wants $41 for the TAM, reasonable. Right?

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

I just ordered the TAM from RockAuto for $41... also got the high pressure steering line for my 00 that I have needed for years.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

Love the `Barney` hands

_________________

Bose Luxury Sound System, Touch Screen Navigation, RainSense Wipers, OnStar Upgrade,
'00 Style Door Panel Courtesy Lights, Heated Washer Solvent, Chromed 18" Factory Rims,
Turn Signal Mirrors, Upgraded HIR-2 Low Beam Headlights, Rear Outboard Heated Seats,
2005 MY Antenna Upgrades, Upgraded Carbon Fibre Appearance Interior Trim.

That front trans mount was a lot worse than mine, which only separated here:

_________________
- Jerry // temptingf8.com

Past: 95 SSEi (June 2010 COTM) -- 04 GXP (July 2011 COTM)
91 Honda Civic Wagon DX 2WD (fuelly) -- 202,000km -- 92hp -- Autocross Warrior
09 White Hot G8 GT -- 131,000km (fuelly) -- Kooks 1 3/4" Long Tube Headers -- Solo Catback Midsection -- Hooker Maxflow Mufflers -- Pat G Tune -- Rotofab Intake -- Tein S-Tech Springs -- GXP FE3 Dampers -- BMR Subframe Cradle Inserts -- BMR Subframe Connectors -- Forgestar F14 Gold 18x9 +40 -- Michelin Pilot Super Sport 245/45/18 -- Maverick Man Carbon Fiber Spoiler

Did that bolt shear or what? That rubber piece is supposed to be floppy in there. Not sure why, but thats how the new one was.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

Really? The one that came out was nice and floppy, the Anchor that went in was solid.

ruh roh... did I replace a perfectly good mount or did you put in an already-broken one? :o

_________________
- Jerry // temptingf8.com

Past: 95 SSEi (June 2010 COTM) -- 04 GXP (July 2011 COTM)
91 Honda Civic Wagon DX 2WD (fuelly) -- 202,000km -- 92hp -- Autocross Warrior
09 White Hot G8 GT -- 131,000km (fuelly) -- Kooks 1 3/4" Long Tube Headers -- Solo Catback Midsection -- Hooker Maxflow Mufflers -- Pat G Tune -- Rotofab Intake -- Tein S-Tech Springs -- GXP FE3 Dampers -- BMR Subframe Cradle Inserts -- BMR Subframe Connectors -- Forgestar F14 Gold 18x9 +40 -- Michelin Pilot Super Sport 245/45/18 -- Maverick Man Carbon Fiber Spoiler

Probably why you gained a rubbing noise, LOL.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

harofreak, be sure to check out my post on the TAM if you haven't already. Be careful or you might end up with a hell-of-a-lot more job than you bargained for.

http://pontiacbonnevilleclub.com/forum/ ... 19&t=10413

Nevermind... I just scrolled through that thread and you were quite active posting on that topic, so you know what I went through.

Anyway, if those bolts start to "slip-stick" when you're removing them be VERY careful as this is when mine broke. However, only one of them broke, but both sounded like they were going to. I'd say to throw some heat on it to loosen up the bolts, but you'd have to move quite a few wires, hoses, and AC lines to avoid damaging them.

I don't know, I think if I were you, and since you already have the part, I'd try replacing the rear trans mount before effing with the TAM. It really wasn't all that bad. If I had to do it again it would take 15-20 minutes and a beer.

Good luck!

_________________
~Adam
'99 SSEi
'02 Volvo S60 AWD 2.4T
'02 Jeep Liberty Sport
'89 Chaparral 187XL w/ 4.3L I/O Mercruiser
'00 Cannondale Jekyll 900SX
Follow me on twitter: adumb

Surprisingly my TAM came out really easy. I did the 2 15mm bolts from under the car first and then the ones on the top. I was able to slide it right out of there.

Since its already ordered, I may as well install it. I also ordered the dogbone mount. So basically, I will be able to replace all 4 mounts. If its still grinding after that I'm throwing the car in my garbage can.

_________________
-Andrew-

2004 Bonneville GXP | White Gold Tricoat | custom built supercharged 3800 hot rod
2005 Town & Country Limited | Butane Blue Metallic | 200k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 150k | Official Bonneville Hauler

I have a receptical you can throw it in. LOL

_________________


2000 SSEi "The Rubber Chicken" (L32 long block, S1x, Comp Cams 105# springs, OR rods, 3.0 Smoothflow MPS, Pacesetters 1-5/8 primaries, Zillamotorsports P&P SC, JP single roller timing set, FWI, Magnaflow cat, Interceptor scangauge, AEM wideband, Powerslot rotors, Hawk ceramic pads, solid transmission mount, HPT)