Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Time for a shift kit? hard 1-2 shifts

Thread Tools
 
Search this Thread
 
Old May 21, 2010 | 08:50 AM
  #1  
jmurray87's Avatar
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,894
Likes: 0
From: Fort Worth, TX
Default Time for a shift kit? hard 1-2 shifts

Alright, I did quite a bit of searching and I just want to make sure I am doing the right thing. My car has the typical problem where the 1-2 shift can become quite hard when it shifts. I bought the car only a month ago so I am not sure how long it's been going on but the previous owner said it only recently started doing it. It's never a problem at first but after driving a while or doing quite a bit of city stop and go driving it just starts to get worse. None of the other gear shifts do it the rest are fine it's just the 1-2 shift that is harsh so I am wondering if it's the shift kit that I need to help resolve this problem? More so the Trans Go HD-2? Or is it just something else with my trans? My car is all stock and still has the original 4l60e.
Reply
Old May 21, 2010 | 10:39 PM
  #2  
72blownvert's Avatar
Launching!
 
Joined: Feb 2010
Posts: 285
Likes: 0
From: south florida
Default

Originally Posted by SlvrV6Camaro
Alright, I did quite a bit of searching and I just want to make sure I am doing the right thing. My car has the typical problem where the 1-2 shift can become quite hard when it shifts. I bought the car only a month ago so I am not sure how long it's been going on but the previous owner said it only recently started doing it. It's never a problem at first but after driving a while or doing quite a bit of city stop and go driving it just starts to get worse. None of the other gear shifts do it the rest are fine it's just the 1-2 shift that is harsh so I am wondering if it's the shift kit that I need to help resolve this problem? More so the Trans Go HD-2? Or is it just something else with my trans? My car is all stock and still has the original 4l60e.

I would check for codes it sounds like you might have a P1870 code which usually is a tcc problem.
Reply
Old Jun 15, 2010 | 10:15 PM
  #3  
jmurray87's Avatar
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,894
Likes: 0
From: Fort Worth, TX
Default

Yeah, it's never really bad or noticeable in the mornings or on a cold start. Just after driving for a while it slows becomes noticeable and annoying. Most the time the RPMS will climb up to 3-3.5k rpms before it finally shifts into 2nd and it does it quite rough. Other then that every other shift is fine and smooth as should be it's just the 1-2 shift. Also, once in a blue moon the car will "bang" into Reverse and/or into Drive when its parked and it makes the car jolt when it does it...is that a related problem or something else? It rarely does that though. It really makes me cringe when it does it so I cross my fingers each time I go for a drive that it does not do it.
Reply
Old Jun 16, 2010 | 07:17 AM
  #4  
72blownvert's Avatar
Launching!
 
Joined: Feb 2010
Posts: 285
Likes: 0
From: south florida
Default

Originally Posted by Bro Inc
An 1870 code usually makes all shifts harsh.
Yes an 1870 does make the other shifts firm but the 1-2 is always the complaint thats to harsh.You still need to check for codes before going any ferther.Reverse is also a symptom because the trans goes to high line and will make engagements hard as well as shifts.
Reply
Old Jun 16, 2010 | 04:07 PM
  #5  
jmurray87's Avatar
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,894
Likes: 0
From: Fort Worth, TX
Default

I had the car scanned about 3-4 weeks ago and the only codes I got were.

P0122 pedal position sensor
P0135 02 sensor
Reply
Old Jun 16, 2010 | 06:39 PM
  #6  
Choppers's Avatar
TECH Resident
iTrader: (60)
 
Joined: Dec 2006
Posts: 849
Likes: 0
From: Jacksonville, Florida
Default

I bet 1870 is the problem. Same symptoms as mine were when I had the code. The part is only like $20 bucks.
Reply
Old Jun 16, 2010 | 06:45 PM
  #7  
jmurray87's Avatar
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,894
Likes: 0
From: Fort Worth, TX
Default

What's the "part" that needs to be replaced?

I called a local well known trans shop and he said 350 bucks to install my shift kit. This was when I was thinking that would fix the problem but if there is another solution that could hopefully be cheaper that would be great.
Reply
Old Jun 16, 2010 | 07:42 PM
  #8  
Choppers's Avatar
TECH Resident
iTrader: (60)
 
Joined: Dec 2006
Posts: 849
Likes: 0
From: Jacksonville, Florida
Default

Its on this website. http://www.transmissioncenter.net/4l60e.htm

Search in key terms 1870 and it will point you right to it. You will need a filter and gasket($10) and 5 quarts give or take transmission fluid($20 max). Also the part($22). It will tell you how to do it when you get the part.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jun 16, 2010 | 08:08 PM
  #9  
Choppers's Avatar
TECH Resident
iTrader: (60)
 
Joined: Dec 2006
Posts: 849
Likes: 0
From: Jacksonville, Florida
Default

Please fix any codes before doing this. Some codes will cause other stuff to act weird. I don't have a shift kit so I know nothing about whats changed when they are put in.
Reply
Old Jun 16, 2010 | 08:20 PM
  #10  
jmurray87's Avatar
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,894
Likes: 0
From: Fort Worth, TX
Default

I will do that, first thing tomorrow morning will run out and get a new TPS and put it on. I would be very happy if that fixes the trans problem but if not, hey one less code to worry about.
Reply
Old Jun 16, 2010 | 11:06 PM
  #11  
twitchtwice's Avatar
12 Second Club
iTrader: (12)
 
Joined: May 2008
Posts: 2,612
Likes: 1
Default

yeah i dont think a shift kit will solve your problems. when i put my shift kit in i put in all three shim washers so that my 1-2 was very solid. so that means something else must be wrong with yours.
Reply
Old Jun 17, 2010 | 12:04 PM
  #12  
jmurray87's Avatar
Thread Starter
TECH Fanatic
iTrader: (1)
 
Joined: Apr 2005
Posts: 1,894
Likes: 0
From: Fort Worth, TX
Default

Well, changed the TPS and took it for a drive, the shifting was better and not shifting late or as hard and was also down shifting smooth as it should. The 1-2 shift still somewhat felt a LITTLE firm but that could be just maybe time for a trans fluid change or something? All in all FAR better then what it was but I am going to drive it quite a bit today/tonight see if anything changes or the problems come back .

Thanks for the help guys.
Reply




All times are GMT -5. The time now is 11:33 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE