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View Full Version : Sloppy shifting - will the B&M Shiftplus help?

garya505
02-15-2008, 07:59 PM
I have a 2000 Alero 3.4L with a sloppy shifting trans, especially the 1-2 shift. Will the B&M Shiftplus help that? The B&M model number is 70380 right?
CBLOHM3400
02-15-2008, 08:13 PM
yes right part number what do you mean by sloppy shift? more info please
Spilner521
02-15-2008, 08:34 PM
Oh yes, it'll help stiffen those shifts right up. You feel an immediate difference, seriously. It's one of the better mods I've ever done to my car.
Bad99Olds
02-15-2008, 10:39 PM
spilner did you get the stage 1 or stage 2? and how tough of an install was it?
YALEROYNOT
02-15-2008, 11:17 PM
this is the next mod on my list
[ion] C2
02-16-2008, 12:01 AM
spilner did you get the stage 1 or stage 2? and how tough of an install was it?

I'm pretty sure it comes with a switch so you can toggle between

OFF
I
II
Bad99Olds
02-16-2008, 12:02 AM
yea i just re-read that... haha. i should have rephr********* it to which mode did he drive it in
Gr1m
02-16-2008, 01:46 AM
its for the 3.4?
Oldsman
02-16-2008, 01:54 AM
it works on the 4t40 and 4t45
greenbastard
02-16-2008, 04:19 AM
Lucas. made the tranny in my wagon last two month until it went BOOM! then it didn't work. Get your tranny flushed and then get Lucas put in it. it will shift better... ...i hope
garya505
02-16-2008, 07:09 AM
yes right part number what do you mean by sloppy shift? more info please

Takes a long time for 1-2 shift sometimes, especially at high RPMs.
CBLOHM3400
02-16-2008, 08:23 AM
installed said part number (70380) on 03 3400
my shifts are so fast they are scary compared to stock
Mr_Reed
02-16-2008, 10:24 AM
So where can I get this?
CBLOHM3400
02-16-2008, 10:36 AM
summit racing, jegs, ebay maybe even jcwhintney
Redog
02-16-2008, 10:52 AM
If you get the DHP PCM, you can't use this
CBLOHM3400
02-16-2008, 02:06 PM
http://www.aleromod.com/forums/showthread.php?t=296

thread on how to install at trans
garya505
02-16-2008, 10:26 PM
Somebody here said something about having to turn the Shiftplus off and on all the time but I can't find the post. Can't you just install it and leave it on, say in position 1?
mfuller
02-16-2008, 11:11 PM
Yes, you can leave it on position 1 all the time, but be advised it will accelerate the wear on your transmission oil pump.
The B&M ShiftPlus (and the AutoTrans Interceptor) both work on the same principle - they increase the current to the shift solenoids. If you wanted to modify the same thing in the PCM, it is the Force Motor Table.....which DHP doesn't make available to us (IDK if HPTuners does), because it can be so hard on the tranny. Use sparingly.
Spilner521
02-16-2008, 11:49 PM
I've had my Shiftplus on my car for over 3 years, 2 of them turbo'd, and I've left it on setting 2 the entire 3+ years without any problems. Still shifts very fast and there's been zero transmission problems.
Cliff8928
02-16-2008, 11:52 PM
Yeah, I've had it on a GMC Jimmy (one of it's intended applications) for like 7 years or so with no adverse effects as well.
GA_turbo
02-17-2008, 01:35 AM
i thought that all 3.1s and 3.4s where vacume operated.
garya505
02-17-2008, 01:45 AM
I've had my Shiftplus on my car for over 3 years, 2 of them turbo'd, and I've left it on setting 2 the entire 3+ years without any problems. Still shifts very fast and there's been zero transmission problems.

Is it turned on all the time?
garya505
02-17-2008, 01:51 AM
You know, I had my trans rebuilt at an Olds dealer at 60k miles because of the sloppy 1-2 shift (it gradually got sloppy over a long period of time). After the rebuild, it repeated the same thing, getting worse with time and now, at 108k, the 1-2 shift feels sloppy again. I think it's just normal wear in the trans and the PCM programming doesn't adjust for it with higher pressure.
Spilner521
02-17-2008, 02:37 AM
Is it turned on all the time?
Yep. The day I installed it I tried it out on both settings. I liked setting 2 so I switched it to 2 and haven't touched it since.
garya505
02-17-2008, 09:45 PM
Yep. The day I installed it I tried it out on both settings. I liked setting 2 so I switched it to 2 and haven't touched it since.

Any warning lights or SES lights?
TheEdgeofSanity
02-17-2008, 10:03 PM
i thought that all 3.1s and 3.4s where vacume operated.

nope...they're a 4T45E

the "E" is for electronically controled
Cliff8928
02-17-2008, 11:50 PM
Only the old GAs and Achievas with the 4T60-E were vacuum.
garya505
02-18-2008, 12:20 PM
nope...they're a 4T45E

the "E" is for electronically controled

Do you have the B&M Shiftplus on yours?
TheEdgeofSanity
02-18-2008, 12:50 PM
nope because i'm afraid that it'll eff up my trans worse than it already is.

here's a gm goodwrench webpage explaining transmission identification:

http://www.goodwrench.com/_res/pdf/TransmissionPdf/Transmission%20Identification.pdf
garya505
02-18-2008, 08:13 PM
Does anyone know if I can put a newer trans in my 2000 Alero 3.4L? How new can I go? I heard some of the newer ones have some mods to make them last longer.
AsianAlero
02-18-2008, 08:38 PM
installed this 2 wks ago and it is a great mod, but does anyone get a big clunk when putting it into gear once the car is warmed up??? in setting 1 and 2
Oldsman
02-19-2008, 01:16 AM
installed this 2 wks ago and it is a great mod, but does anyone get a big clunk when putting it into gear once the car is warmed up??? in setting 1 and 2

this is normal with the higher pressure from the pump.

you should hear and feel it with the poly mount and coilovers............SLAM