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putting an engine in a 2000 pontiac grand am gt 3400 auto...

Posted: Mon Mar 11, 2013 9:37 pm
by speedy
i need some help, my old mans grand am opsu(replace yours if you havent) blew out, caused a lost of a significant amount of oil, fixed the sensor, add'd oil, now she's knocking... sooo... i gotta put a motor in the car, im pretty mechanicly inclined, but ive never dealt with a fwd automatic car, and i hate the v6's to boot(no room to work), but my question is, does the trans come out the top with the motor like a q4 does, or wont it fit? and how does the trans mount to the motor, do i have to unbolt the torque converter from the flex plate, does it have to line up a certain way or what??? again, i dont deal with automatics, they arent my thing so i know very little about them.

Re: putting an engine in a 2000 pontiac grand am gt 3400 aut

Posted: Mon Mar 11, 2013 9:41 pm
by Slinky
Its probably a 4t45e trans, Oh I know is it's difficult as it is to get the trans out through the bottom you Dafinatly can't pull it up over top of the motor without taking the motor out, I find it easier to remove through the bottom but some people remove the engine and everything and take it through the top

Re: putting an engine in a 2000 pontiac grand am gt 3400 aut

Posted: Mon Mar 11, 2013 10:03 pm
by speedy
well,the through the bottom id have to support the body, support subframes, unbolt the subframes, and drop the suspension with it then find a way to drag it out from under the car and raise the car above it.. i have an engine hoist, not a crane in my garage or lift so i keep it simple, so if i pull the axles, unplug everything and unbolt the exhaust, can i take the engine with the trans bolted to it, out the top, thats my first question??

Re: putting an engine in a 2000 pontiac grand am gt 3400 aut

Posted: Mon Mar 11, 2013 10:04 pm
by Slinky
Yes you should be able to remove it from the top the whole subframe deal is the reason people remove it from the top so they don't have to mess with any of that just remove your hood and pool it all out through the top

Re: putting an engine in a 2000 pontiac grand am gt 3400 aut

Posted: Tue Mar 12, 2013 3:54 am
by Z26_T
I sent you a PM with the instructions to replace the engine. Just leave the transmission in there but support it with a jack (but with a block of wood of course). Remove the torque converter bolts through the starter hole and rotate the engine. When you're installing the new engine, you don't have to index the torque converter to the flywheel any special way. But don't tighten the first bolt down all the way. Install all 3 in finger-tight before torquing them. Otherwise you won't be able to get the other 2 in.

Re: putting an engine in a 2000 pontiac grand am gt 3400 aut

Posted: Fri Apr 12, 2013 7:20 pm
by Rettax3
Z26_T wrote:I sent you a PM with the instructions to replace the engine. Just leave the transmission in there but support it with a jack (but with a block of wood of course). Remove the torque converter bolts through the starter hole and rotate the engine. When you're installing the new engine, you don't have to index the torque converter to the flywheel any special way. But don't tighten the first bolt down all the way. Install all 3 in finger-tight before torquing them. Otherwise you won't be able to get the other 2 in.
Yeah, what he said...

I did a 2.4 from a 2000 GA SE last year, and finally figured out that GM actually cast in a pocket in the starter hole to hold a socket so the engine can't rotate while you are removing the torque-converter bolts -very nice, especially since the starter is on the upper front of the engine. I've owned four or five of these engines, and just now figured this out?? :roll:

I hear what you are saying about not having room to work around the V-6s, but the four-bangers are actually longer, I believe. Definitely just unbolt the engine from the tranny, the extra PITA you will have doing that will save twice that much from trying to shoe-horn the complete drivetrain in and out of the car, and probably save you from the headache of crushing other parts there too, like the brake master cylinder.

Good luck, keep us in the loop, pics are welcome too.

Re: putting an engine in a 2000 pontiac grand am gt 3400 aut

Posted: Sat Apr 13, 2013 2:25 am
by Cliff8928
speedy wrote:well,the through the bottom id have to support the body, support subframes, unbolt the subframes, and drop the suspension with it then find a way to drag it out from under the car and raise the car above it.. i have an engine hoist, not a crane in my garage or lift so i keep it simple, so if i pull the axles, unplug everything and unbolt the exhaust, can i take the engine with the trans bolted to it, out the top, thats my first question??
More like... jack the car up, put on jackstands, remove subframes and set aside, lower engine onto moving dolly,etc... Attach engine hoist to where front subframe bolts were, lift car up, roll out engine.