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Where is the tac module located on the throttle 2003 Silverado?

Tiny
DBRIDERAZ1
  • MEMBER
  • 2003 CHEVROLET SILVERADO
  • 130,000 MILES
Getting reduced engine power re-wired throttle body connector did not remedy? Tac module location?
Wednesday, November 30th, 2011 AT 3:13 AM

8 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
The TAC modules go out all the time they are all over ebay for like $185.00. Here is the location on the diagrams below. Check out the diagrams (Below) Please let us know if you need anything else to get the problem fixed. Cheers, Ken
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Wednesday, November 30th, 2011 AT 3:19 AM
Tiny
DBRIDERAZ1
  • MEMBER
  • 3 POSTS
5.3 liter engine, had a local shop have connector to throttle body rewired/replaced, they said that was it - dealer says it needs a tac module and a throttle body.
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Wednesday, November 30th, 2011 AT 4:39 AM
Tiny
DBRIDERAZ1
  • MEMBER
  • 3 POSTS
Truck goes into reduced engine power mode, the new module fixed it :)
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Wednesday, November 30th, 2011 AT 4:47 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Good to hear, please use 2CarPros anytime we are here to help.

Cheers, Ken
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Wednesday, November 30th, 2011 AT 10:23 AM
Tiny
SMITHMOWINGSERVICE
  • MEMBER
  • 2 POSTS
Same issue here 03 Silverado 5.3. Reduced engine power pretty much whenever it feels like it. Getting a tac code. Cleared and only comes back once it reads the REP. It's exhausting.
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Friday, September 11th, 2020 AT 2:24 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

What is the code number that you currently have stored?

Roy
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Saturday, September 12th, 2020 AT 8:03 AM
Tiny
SMITHMOWINGSERVICE
  • MEMBER
  • 2 POSTS
I would have to check again but I believe it says p1516 throttle vs command (tac). I bought the pedal sensor and waiting to install that tomorrow.
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Friday, September 18th, 2020 AT 3:03 PM
Tiny
DANNY L
  • MECHANIC
  • 5,648 POSTS
Hello, I'm Danny.

That sounds like more of a tac symptom than a accelerator position sensor. I've attached picture steps below of a diagnostic flow chart to help you diagnose before you just start buying parts. Hope this helps and thanks for using 2CarPros.
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Friday, September 18th, 2020 AT 9:12 PM

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