Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Pontiac > Grand Prix > Tips and Maintenance
Tips and Maintenance Post helpful tips, maintenance guides and R&R procedures here (for both Pontiac Grand Prix and Oldsmobile Intrigue)
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 04-29-2010, 02:13 PM   #1
tblake
In God We Trust
 
tblake's Avatar
 
Join Date: Nov 2003
Location: Maple Lake, Minnesota
Posts: 5,971
Thanks: 4
Thanked 24 Times in 23 Posts
Send a message via MSN to tblake
1997-2003 Grand Prix Trans Mount Replacement

The lower trans mount on my car has been giving me issues for a while now. I had an issue where if I would slow down or speed up, the car seemed to have excessive torque steer. My car has 140,000 miles on it, and when I took a peek at my trans mount, it looked all weather checked and cracked up. Here is a short writeup on how to get the old lower trans mount out and the new one in. I didn't have a camera at the time so I was not able to get pictures as I went, you will have to visualize.

1) Jack up the vehicle, (I usually use the front crossemember on the subframe), then place jackstands at the pinch welds towards the front of the car, and chock the rear wheels to keep them from rolling. Then lower the jack and let the car rest on the jackstands.

2) Remove the drivers side wheel. (although probably not 100% necessicary, it makes it easier to get your hands in there.

3) Use a phillips screwdriver, or pliers, or flathead screwdriver, or whatever you need to use to get those two push on clips that secure the plastic guard to the inner fender. Remove the guard and this will expose the trans mount.

4) Here you can remove the nuts that secure the trans to the trans mount and the trans mount to the subframe. The nuts (if I remember right) were 15mm. I was able to get a 3/8 ratchet with shallow 15mm socket in there for a couple of them (I think it was the bottom two). The other ones I broke loose with a 15mm box end wrench and finished removing them with a ratcheting wrench (gearwrench ones from Sears I got for Christmas ). Take all the nuts completly out.

5) Next you will want to undo the upper dog bone mounts, both of them. Take the bolts out.

6) This is where you need to be carefull not to damage your oil pan. They are easy to dent. Mine was already a little messed up from hitting a chunk of Ice last winter so I was a little worried that doing this might continue to dent it in, but I was ok. What you will want to do is take your floor jack, place a short chunk of 2x4 or 4x4 whatever you have on it, and slowly jack upwards on your oil pan. If done right, your motor mount will hold the motor on the passenger side, and you will lift the driverside upwards in order to get the trans mount out. Don't overdo it, if it is not going up with light pressure. Stop and see what is wrong, reposition the jack and wood.

7) Once your motor is lifted high enough, slip the trans mount out. Pay attention to which direction is up. Then slip your new one in.

8) Assemble in reverse order and you are all done.

I did mine while my oil was draining for an oil change after work one night. So far so good. Handeling seems better, and I havn't felt a clunk I had been trying to figure out since I replaced my trans mount.

I went with a solid rubber trans mount I got at Napa for around $40.00 after tax. Napa Part Number 622-1242.





Here are the links to ZZP poly and solid rubber mounts.

ZZP Solid Poly Trans Mount $89.99

ZZP Solid Rubber Trans Mount $49.99

Here is what my old hydraulic mount looked like when it came out. All cracked and weather checked. Even seems the rod that runs through the center may have been coming apart.



Good Luck!!!!

Anyone want to give the ZZP Upper Motor mount stiffening free mod along with this mod a try and let us know how they go?

ZZP Upper Motor Mount Stiffening Free Mod
__________________
-2000 Grand Prix GTP 170,000mi (daily driver)
-2000 Olds Alero 100,000mi (soon to be DD with gas at $3.45/gal)
-1997 Chev K1500 4x4 115,000mi (Natalie's truck [nans_grandprix])


AF "2.0" Community Guidelines

Conservative Victory 2012!!!

"I'll Keep my Guns, Freedom, and Money. You can Keep the Change!"

----->>>>> Did You Know? <<<<<-----
tblake is offline   Reply With Quote
Old 04-29-2010, 03:59 PM   #2
00GTP4ME
AF Enthusiast
 
00GTP4ME's Avatar
 
Join Date: Apr 2008
Location: South Jordan, Utah
Posts: 710
Thanks: 1
Thanked 2 Times in 2 Posts
Re: 1997-2003 Grand Prix Trans Mount Replacement

Awesome man, thanks for the write-up! I'll let you know how it goes!
__________________

2000 Pontiac Grand Prix GTP 3.8L SII V6 S/C
2000 Jeep Grand Cherokee Limited 4.7L V8
----------------------------------------------------
1996 Chevrolet Camaro Z28 5.7L V8
1993 Chevrolet Suburban K1500 5.7L V8
1991 Ford Probe LX 3.0 V6
1986 Ford Tempo GL 2.3L 4 cyl.
00GTP4ME is offline   Reply With Quote
Old 10-08-2010, 09:40 AM   #3
00GTP4ME
AF Enthusiast
 
00GTP4ME's Avatar
 
Join Date: Apr 2008
Location: South Jordan, Utah
Posts: 710
Thanks: 1
Thanked 2 Times in 2 Posts
Re: 1997-2003 Grand Prix Trans Mount Replacement

Tim do you happen to have a pic of the trans mount on the vehicle?
__________________

2000 Pontiac Grand Prix GTP 3.8L SII V6 S/C
2000 Jeep Grand Cherokee Limited 4.7L V8
----------------------------------------------------
1996 Chevrolet Camaro Z28 5.7L V8
1993 Chevrolet Suburban K1500 5.7L V8
1991 Ford Probe LX 3.0 V6
1986 Ford Tempo GL 2.3L 4 cyl.
00GTP4ME is offline   Reply With Quote
Old 01-07-2011, 06:32 AM   #4
bjaymo3
AF Newbie
 
Join Date: Jan 2005
Location: Greensboro, North Carolina
Posts: 63
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to bjaymo3
Re: 1997-2003 Grand Prix Trans Mount Replacement

Thanks Mr. Blake. I'm going to do this on Saturday in hopes that it cures my popping (or clunking) sound.
__________________
2002 Grand Prix GT 3.8 V6
1998 Dodge Grand Caravan 3.3 V6
1998 Chevy Blazer 4wd 4.3 V6
bjaymo3 is offline   Reply With Quote
Old 01-07-2011, 09:33 AM   #5
00GTP4ME
AF Enthusiast
 
00GTP4ME's Avatar
 
Join Date: Apr 2008
Location: South Jordan, Utah
Posts: 710
Thanks: 1
Thanked 2 Times in 2 Posts
Re: 1997-2003 Grand Prix Trans Mount Replacement

What is it with these cars and knocking/popping??
__________________

2000 Pontiac Grand Prix GTP 3.8L SII V6 S/C
2000 Jeep Grand Cherokee Limited 4.7L V8
----------------------------------------------------
1996 Chevrolet Camaro Z28 5.7L V8
1993 Chevrolet Suburban K1500 5.7L V8
1991 Ford Probe LX 3.0 V6
1986 Ford Tempo GL 2.3L 4 cyl.
00GTP4ME is offline   Reply With Quote
Old 01-26-2011, 08:26 PM   #6
jakegday
AF Enthusiast
 
Join Date: Jan 2005
Location: fremont, Nebraska
Posts: 1,868
Thanks: 0
Thanked 1 Time in 1 Post
Send a message via AIM to jakegday Send a message via Yahoo to jakegday
Re: 1997-2003 Grand Prix Trans Mount Replacement

Quote:
Originally Posted by 00GTP4ME View Post
What is it with these cars and knocking/popping??
lol, im having the same problem. its coming from my passenger side tho. has been for a LONG time now. im going to use pretty much the exact procedure above (except opposite side) this spring to replace my engine mount.
__________________
2001 Grand Prix GT: cat/u-bend/resonator delete, zzp PLOG, Custom Intake, DHP PCM,
1981 Fairmont 6cyl 3 speed
1978 Ford Ranchero GT 302 with a few goodies
jakegday is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Pontiac > Grand Prix > Tips and Maintenance

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 07:30 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts