4L60E shifting problems 2003 LQ4 - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

solidaxel · 02-19-2014, 05:14 PM

O K, I see the 4 white "click" tabs, but how do I get the safety clip off of the bolt, I guess I need to remove the bolt....YES?

solidaxel · 02-19-2014, 05:16 PM

Quote:

Originally Posted by Wasted Income

Crap...my image of the pinout somehow turned into a huge megasquirt image. Well that's what I get for stealing stuff from their site...

WOW, I am glad you looked at that site.............. there was a whole bunch of interesting "stuff" in that google group!!!!

Wasted Income · 02-19-2014, 06:10 PM

Quote:

Originally Posted by solidaxel

WOW, I am glad you looked at that site.............. there was a whole bunch of interesting "stuff" in that google group!!!!

Well then you might also like this.

http://www.msgpio.com/manuals/mshift/4L80E/4L80e.html

Also, this is the image I was trying to link originally

http://www.msgpio.com/manuals/mshift...nal_wiring.jpg

ls1nova71 · 02-19-2014, 06:53 PM

Quote:

Originally Posted by solidaxel

O K, I see the 4 white "click" tabs, but how do I get the safety clip off of the bolt, I guess I need to remove the bolt....YES?

Look at the green plastic part. On each end will be a small tab that needs to be depressed and just the green part will come off. Then there is a little white tang that holds the pins in. Pull it back and pull the wire out from the back side.

BR3W CITY · 02-19-2014, 07:40 PM

Not my video, a touch shaky but it might help

Disassembly of GM PCM connector - YouTube

solidaxel · 02-19-2014, 10:14 PM

Quote:

Originally Posted by ls1nova71

Look at the green plastic part. On each end will be a small tab that needs to be depressed and just the green part will come off. Then there is a little white tang that holds the pins in. Pull it back and pull the wire out from the back side.

O K,, that was easy, I transposed the pins to match the transmission, now try it out.

solidaxel · 02-19-2014, 10:51 PM

WINNER, WINNER, CHICKEN DINNER !!!!!!!

Well we have a fix for the JERKY WONKY problem!

Computer is working fine it now has 1-2-3-4 and Reverse.
Problem solved, and I learned a bunch, not that I wanted to, but never the less more knowledge on the LS and computers.

When they work they are great.

I want to thank you folks for sticking with me on this fix, now I can work on the cruise control, and the A/C re plumb, and stick a fork in this project!!

ls1nova71 · 02-19-2014, 11:31 PM

Awesome! Glad you got it figured out. That's the downside to aftermarket harnesses, sometimes they're pinned wrong. I've seen O2's pinned wrong and they're a SOB to figure out.

solidaxel · 02-20-2014, 12:21 AM

After looking at the video I found that I did not have to disassemble the whole connector, I did as you said remove the green cap and hold the plastic part up and pushed the pin out. fixed it !!

Thanks for the help

BR3W CITY · 02-20-2014, 01:26 AM

I swear this forum has a higher "clearance rate" than most others lol. Glad it worked, and we verified some troubleshooting steps etc, so its good for everyone.

Custom 68 · 02-20-2014, 09:20 AM

That is awesome I am glad you kept us posted.
Now drive the snot out of it and enjoy...

littlevictories · 02-20-2014, 11:44 AM

that's killer!

solidaxel · 02-20-2014, 12:05 PM

Drove up the gas station and put 8.4 miles and put in 14gal. so it was just about empty.
This is the first time in 16 years that the fuel gauge has worked and the speedometer has not!!
New tank and sender, new engine and old speedo. I have Torque Pro to monitor lots of things and a big Galaxy 7" with three different sizes of digital or graph or analog gauges on one page.
I have not tried out the traction control yet !!!!

mooseknuckles · 02-25-2014, 11:05 PM

Quote:

Originally Posted by ls1nova71

Awesome! Glad you got it figured out. That's the downside to aftermarket harnesses, sometimes they're pinned wrong. I've seen O2's pinned wrong and they're a SOB to figure out.

x2!....my harness was pinned wrong too...easy fix once I knew where to look.

02-19-2014, 05:14 PM	#26
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: 4L60E shifting problems 2003 LQ4 O K, I see the 4 white "click" tabs, but how do I get the safety clip off of the bolt, I guess I need to remove the bolt....YES? __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

02-19-2014, 10:51 PM	#32
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: 4L60E shifting problems 2003 LQ4 WINNER, WINNER, CHICKEN DINNER !!!!!!! Well we have a fix for the JERKY WONKY problem! Computer is working fine it now has 1-2-3-4 and Reverse. Problem solved, and I learned a bunch, not that I wanted to, but never the less more knowledge on the LS and computers. When they work they are great. I want to thank you folks for sticking with me on this fix, now I can work on the cruise control, and the A/C re plumb, and stick a fork in this project!! __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

02-19-2014, 11:31 PM	#33
ls1nova71 Registered User Join Date: Dec 2009 Location: Independence Mo Posts: 4,118	Re: 4L60E shifting problems 2003 LQ4 Awesome! Glad you got it figured out. That's the downside to aftermarket harnesses, sometimes they're pinned wrong. I've seen O2's pinned wrong and they're a SOB to figure out. __________________ My '72 short bed build. http://www.ls1tech.com/forums/conver...6-0-4l80e.html 5.3 swap into my RUSTY '71 C10 http://ls1tech.com/forums/conversion...71-c-10-a.html

02-20-2014, 12:21 AM	#34
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: 4L60E shifting problems 2003 LQ4 After looking at the video I found that I did not have to disassemble the whole connector, I did as you said remove the green cap and hold the plastic part up and pushed the pin out. fixed it !! Thanks for the help __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

02-20-2014, 01:26 AM	#35
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 4L60E shifting problems 2003 LQ4 I swear this forum has a higher "clearance rate" than most others lol. Glad it worked, and we verified some troubleshooting steps etc, so its good for everyone. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

02-20-2014, 09:20 AM	#36
Custom 68 Registered User Join Date: Nov 2001 Location: Springfield, MO Posts: 2,939	Re: 4L60E shifting problems 2003 LQ4 That is awesome I am glad you kept us posted. Now drive the snot out of it and enjoy... __________________ Dave 1968 Custom Chevy with turbo charged 5.3 gen III 4l80e swap 1967-71 GMC 3/4 ton long step 4x4 (not sure what year exactly?) "A good friend will bail you out of jail...but a true friend will be sitting next to you saying "that was frekin awesome". "If it doesn't fit force it...If it breaks then it needed to be replaced anyway!"

02-20-2014, 11:44 AM	#37
littlevictories Registered User Join Date: Dec 2013 Location: Portland, Ore. Posts: 348	Re: 4L60E shifting problems 2003 LQ4 that's killer!

02-20-2014, 12:05 PM	#38
solidaxel Registered User Join Date: Dec 2002 Location: Cactus Patch So. Az Posts: 4,749	Re: 4L60E shifting problems 2003 LQ4 Drove up the gas station and put 8.4 miles and put in 14gal. so it was just about empty. This is the first time in 16 years that the fuel gauge has worked and the speedometer has not!! New tank and sender, new engine and old speedo. I have Torque Pro to monitor lots of things and a big Galaxy 7" with three different sizes of digital or graph or analog gauges on one page. I have not tried out the traction control yet !!!! __________________ 53 TuTone Extended Cab 350 4-Spd 3:08 (SOLD) 53 Chevy Moldy pearl green ZZ-4 4L60E 9" 3:25 55 GMC 1st Black Mll (ZZ4) ZZ6 TKO 600 5 sp 3:73 62 Solidaxle Corvette Roman Red (327 340hp 4spd 3:36) C4 & C5 suspension tube chassis LS 3 4L70E 65 Corvette Coupe 327 350hp 4spd 4:11 78 Black Silverado SWB (350/350) 5.3 & 4L60E 3:42 2000 S-Type 3.0 (wife cruiser) 2003 GMC SCSB 5.3 4L60E 3:42

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