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Reconnecting the ABS system after engine swap?

Tiny
TRC43
  • MEMBER
  • 1995 CHEVROLET 1500
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 265,000 MILES
I recently did an engine swap in my truck listed above Silverado. The engine we put in is out of a 2004 Tahoe. Since the new engine has a different computer, the original system has been disconnected. Now what do I need to do to get the ABS system back to functioning?
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Wednesday, September 6th, 2023 AT 10:19 AM

10 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,264 POSTS
You need the brake pressure modulator valve and speed buffer sensor, I don't see the PCM involved in the ABS system, here is the wiring diagrams so you can see how the system works and how to wire it. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Wednesday, September 6th, 2023 AT 1:02 PM
Tiny
TRC43
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  • 6 POSTS
Just for clarification, is this diagram for the 1995 system?
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Thursday, October 5th, 2023 AT 11:00 AM
Tiny
KEN L
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  • 46,264 POSTS
Yep, I double checked it.
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Friday, October 6th, 2023 AT 9:30 AM
Tiny
TRC43
  • MEMBER
  • 6 POSTS
  • 1995 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 265,000 MILES
I recently transplanted a 5.3 l LS from a 2004 Tahoe into my 1995 Silverado. I am trying to reconnect the cruise control. What do I need to connect to it to make the cruise control work properly?
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Friday, October 6th, 2023 AT 9:31 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,264 POSTS
It's hard to say, you will need to rig something up for the cruise control module cable tot eh throttle body of the LS, here is the cruise control wiring diagrams and module so you can see how the system works. Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
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Friday, October 6th, 2023 AT 9:31 AM (Merged)
Tiny
TRC43
  • MEMBER
  • 6 POSTS
Pictures of the progress.
The cruise control mod is out of a 1999 S10 blazer, I got lucky to find one that was long enough and has a small amount of length adjustment.
After market computer and harness. The original harness and computer are still in the truck just disconnected.
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Friday, October 6th, 2023 AT 9:31 AM (Merged)
Tiny
TRC43
  • MEMBER
  • 6 POSTS
On the same truck, I would like to get the ABS system re-connected also.
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Friday, October 6th, 2023 AT 9:31 AM (Merged)
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 46,264 POSTS
Nice work, sorry, we only handle one problem per thread, please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken
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Friday, October 6th, 2023 AT 9:31 AM (Merged)
Tiny
TRC43
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  • 6 POSTS
The diagrams supplied are for which year model truck?
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Friday, October 6th, 2023 AT 9:31 AM (Merged)
Tiny
KEN L
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This is for a 1995 chevy truck 1500 2wd 5.7 liter.
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Friday, October 6th, 2023 AT 9:31 AM

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