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2001 Chevrolet Impala No Power

Tiny
JAYYKIDD
  • MEMBER
  • 2001 CHEVROLET IMPALA
  • 3.8L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
I recently changed the motor because the motor started knocking on the last one, Now my problem is the ecu is not getting power and the brake lights stay on as if I have my foot on the brake. I have double checked all my wiring and grounds, changed bcm and ecu.
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Sunday, December 21st, 2014 AT 5:30 PM

7 Replies

Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
You need to check all fuses, especially the fuse for the ebcm ( electronic brake control module), fuse number 35 I think. Also you need to verify that you have communication with a scan tool and see if there are any codes stored.
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Sunday, December 21st, 2014 AT 6:38 PM
Tiny
JAYYKIDD
  • MEMBER
  • 4 POSTS
I will check that fuse right now, but I have gotten a scanner and it doesn't read the computer at all?
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Sunday, December 21st, 2014 AT 6:45 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Ok, that helps. Make sure that you check every fuse in both fuse boxes very carefully and again especially the ebcm fuse. If you find any blown, first see if that restores the scanner communication and check for codes and post them here for me if there are any. Let me know.
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Sunday, December 21st, 2014 AT 7:00 PM
Tiny
JAYYKIDD
  • MEMBER
  • 4 POSTS
I have checked every fuse and the only fuse that doesn't get power is the BCM fuse it is a 10. I swapped it out even though it wasnt blown and it still doesnt have power, I keep checking with the scanner and it still doesnt read anything
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Monday, December 22nd, 2014 AT 3:27 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
That's what I suspected, in all likeliness you have a faulty module, but I would suggest that you have it diagnosed by a shop to be certain.
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Monday, December 22nd, 2014 AT 3:47 PM
Tiny
JAYYKIDD
  • MEMBER
  • 4 POSTS
So I changed the Bcm and Pcm, brake lights went of but I still don't hear my fuel pump and no power to pcm
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Monday, December 29th, 2014 AT 6:58 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
I am going to have to recommend that you take it to a shop and have it diagnosed, it is to costly to keep guessing.
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Monday, December 29th, 2014 AT 7:49 PM

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