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2002 chevy trailblazer_lt
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150 Posts
Discussion Starter #1
I have been tinkering with the idea of changing my own Motor Mounts. However, after reading several posts and checking out a few how-to's the process seems a little more involved than what I may like to get into.

However, while I was inspecting a few posts and inspecting the engine itself, I was wondering if anyone else has ever changed the mounts without taking off the Fan clutch and jacking the enigne up as far as it could go. My question is this. Since there is a top engine mount bracket that bolts to the engine, would it be possible to simply brace the engine, unbolt the top bracket from the engine. Remove the the old MM and replace it with the new one. Put the bracket back on the engine. Put the nut back on the top of the new MM.

Just asking.
 

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gmc envoy_slt
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410 Posts
I have done it, its pretty easy! Took me a few mins each side.

This is the way I did them

1: secure the car on flat surface
2: unbolt the plastic covering the oil pan
3: Completely unbolt one of the motor mounts, theres a top bolt and a lower bolt. You will need a long extension for both and maybe even a breaker bar.
4: Loosen the opposite side mount, but leave the nuts threaded a bit.
5: Grab a decent jack and a piece of 2x4 or any wood to help protect the oil pan. Slowly start jacking up the oil pan just enough to give you enough room to slide the motor mount out.
6: Slide the new motor mount, making sure to line up the top and lower key holes, and now slowly lower the engine just enough to barely get the nuts on.
7: Do the same for the opposite side motor mount.
8: Carefully lower the engine, and tighten up the motor mount bolts.
9: Bolt back on the oil pan splash gaurd
 

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2002 chevy trailblazer_lt
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150 Posts
Discussion Starter #3
Clarification

When I was researching this, some other posts stated that they had to remove the fan clutch to have enough room to jack up the engine to remove the old mounts and install the new ones.

Based on what you have written, you did not do any of that. Obviously you had plenty of room to install your new ones. Would that be correct?
 

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gmc envoy_slt
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410 Posts
When I was researching this, some other posts stated that they had to remove the fan clutch to have enough room to jack up the engine to remove the old mounts and install the new ones.

Based on what you have written, you did not do any of that. Obviously you had plenty of room to install your new ones. Would that be correct?
I didnt have any problems the way I did it. I would replace both front mounts, theres no need really to do the rear transmission mount
 

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2005 gmc envoy_slt
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1 Posts
Thanks for the quick instructions

This procedure worked for me no other items had to be removed, I think the important part was leaving one slightly bolted while replacing the other one so the engine rotates a bit instead of going straight up leaving a bit more clearence room for the middle of the engine (fan shroud, throttle body) which is the limiting factor on jacking the engine up.

Compared to my old 99 Jimmy this was heavenly
 

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2002 chevy trailblazer_lt
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26 Posts
I have to give a pat on the back to several folks here on the forum.

I had what I originally preceived as a "miss" or rough idle in the motor of my 02 TB. She had right at 100,000 miles so I did the usual (as suggested here) like new Delco plugs, trans fluid and filter, cleaning of the throttle body and such, "roughness" persisted then I began listening to what Roadie. ibidu1, and several other members were saying about motor mounts. Well yesterday I installed my new GM motor mounts and just daummmm. Feels like I'm driving a brand new vehicle. Smooth as silk. New mounts made a world of difference.

Thanks guys.:thumbsup:
 

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2003 gmc envoy_sle_xl
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1 Posts
motor mounts

thank you all for the tips on replacing the mounts! my 03 envoy feels like a brand new truck thanks:hail:
 

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Premium Member
2002 chevy trailblazer_lt
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708 Posts
Never Again! :mad: :hissy: This is the worst **** i have ever done didn't unhook anything but had a helluva time gettin the new mounts in cause the old ones were so compressed! I'll tell ya if it weren't for my bench grinder i'd be majorly pissed lol. The new ones needed at least another 1/4 inch to go in. Managed to get them in by grinding a lil over a 1/4 inch off the new ones. Which was easy cause they have about a 1/2 inch of non threaded portion thank god! :bonk: But finally got em on there and hope i never have to do it again seeing as i'm at 225,000 miles right now. Runs smooth as silk now! Next goes the Exhaust manifold and gasket....Sighs! :ugh: :suicide:


Just a reminder: It won't hurt to GRIND SOME OFF! Save yourself some trouble and if it won't fit GRIND GRIND GRIND! That's my advice for the day lol!
 

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2002 gmc envoy_slt
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91 Posts
I just received my motor mounts from GMC part direct. Man those things are not cheap, looks like a big ball of rubber. Anyway, I'm getting ready to mount those in a few days. Idle is super rough, my headliner adhesive detached from the roof and now makes a racket! At least I get a massage during idle.:) Thought cleaning throttle body and installing new plugs would take care of it but no.:no:
 

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2003 chevy trailblazer_lt_ext
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31 Posts
Completed in just shy of an hour. It was a cakewalk. Tip: I removed the two bolts that hold the top of the fan shroud in place so it would raise up with the motor. Otherwise, I found the fan would hit it and force it upward, causing it to start to crack.

Easy job and my TB EXT feels like a brand new vehicle.
 

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2002 chevy trailblazer_ls
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1,433 Posts
OK I'm looking at getting my motor mounts replaced this weekend. I've been searching and reading, and this sounds pretty straightforward... Then I looked under the hood and :confused:

Passenger side, yes, I can see it sitting straight down there. Long extension should do it fine. Cool.

Driver side however is below the computer and a bunch of piping/wiring/etc. How the heck am I supposed to get to it? :confused: Or am I just blind and stupid :crazy:

I have done it, its pretty easy! Took me a few mins each side.

This is the way I did them

1: secure the car on flat surface
2: unbolt the plastic covering the oil pan
3: Completely unbolt one of the motor mounts, theres a top bolt and a lower bolt. You will need a long extension for both and maybe even a breaker bar.
4: Loosen the opposite side mount, but leave the nuts threaded a bit.
5: Grab a decent jack and a piece of 2x4 or any wood to help protect the oil pan. Slowly start jacking up the oil pan just enough to give you enough room to slide the motor mount out.
6: Slide the new motor mount, making sure to line up the top and lower key holes, and now slowly lower the engine just enough to barely get the nuts on.
7: Do the same for the opposite side motor mount.
8: Carefully lower the engine, and tighten up the motor mount bolts.
9: Bolt back on the oil pan splash gaurd
 

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Registered
2003 chevy trailblazer_ls
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5,267 Posts
is it that easy.. like ibidu posted?
Nothing else in the way?

I may have to try this.
Did you guys use OEM- or aftermarket?
 

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2002 chevy trailblazer_ls
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1,433 Posts
I don't see it being as easy as he said. Especially if you have a 4x4 model, the extra drivetrain components get in the way.

Due to a repair gone wrong, my Trailblazer is in the shop and while they are working on it they are putting in my new motor mounts for me (they're having to unbolt the engine anyway). My passenger side mount is torn and the driver side is worn.

It isn't recommended on here to go with aftermarket motor mounts. Apparently the aftermarket missed the mark completely on these and made them too stiff. OEMs are highly preferred in this case.
 

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2002 gmc envoy_slt
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91 Posts
Just installed them yesterday. Kind of a pain, had to grind off about 1/4" from both top and bottom bolts. Turned on engine, and it was very smooth. Hard to believe that the motor mounts, even when compared to the new ones, looked pretty good, but what a difference! Smooth as butter now.:thumbsup:
 

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2003 gmc envoy_slt
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37 Posts
rough iddle

Just installed them yesterday. Kind of a pain, had to grind off about 1/4" from both top and bottom bolts. Turned on engine, and it was very smooth. Hard to believe that the motor mounts, even when compared to the new ones, looked pretty good, but what a difference! Smooth as butter now.:thumbsup:
where did you buy them? how much? did you do just the front ones?
if i read here correctly, there is no need to do the rear/transmission ones?

nico
 

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2002 gmc envoy_slt
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91 Posts
I got them from gmpartsdirect for something like $65 each. I did only the two motor mounts and not the trans. I've read it wasn't necessary so I didn't bother. My old mounts were about 5/8" squat, didn't look like much but it felt (idles and started) much smoother. All I can say is it was worth it. :yes:
IMG_6003.JPG
 

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2007 chevy trailblazer_lt
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259 Posts
First of all i would like to thank Mr Roadie and all the member of Trailvoy for the solution.
my TB was vibrating so much that it was really irritating me espcially when it was engaged in drive and the ac on.after reading the post i decided to change the motor mount,after the replacement there was a big change in my vehicle it is so smooth and no vibration at all even when i used start the vehicle it was giving a diffrent type of vibration as if i am starting the truck,now i dont even feel that viration.today my wife was asking to start the car, she was shocked that when i told her that the car's engine is aready running.
Trailvoy has really solved my most of the problem including this i really thank all the mod and the members for being very supportive and patience in solving problems for our members
i have attached the pic of my damged mounts





Before
View My Video

After changing the mounts

View My Video
 
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