2011 CTSV problem
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2009-2014 Cadillac CTS-V General Discussion Discussion, 2011 CTSV problem in Cadillac CTS-V Series Forum - 2009-2014; Hello all. I am hoping I can get some assistance from you expert V owners. I own a 2011 CTSV ...
  1. #1
    Miller_v is offline Cadillac Owners Member
    Automobile(s): 2011 CTS V
    Join Date
    Mar 2012
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    2011 CTSV problem

    Hello all. I am hoping I can get some assistance from you expert V owners. I own a 2011 CTSV Coupe. Just 12K miles on her.

    No mods, everything is factory.

    The car has been towed to the dealer 3 times now. Symptoms are, engine light comes on, traction control light comes on, vehicle sputters/wont go or goes very slowly and sometimes has trouble even starting.

    Cadillac dealer changed spark plug wires, fuel pump and fuel pump control module all with no luck at fixing the problem.

    Dealer says diagnostic is throwing codes 171 and 174.

    Has anyone experienced something similiar or can someone give me some advice because the dealer is back to the drawing board?

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  3. #2
    east coast ctsv is offline Cadillac Owners Member
    Automobile(s): 2011 V Coupe Thunder/Ebony
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    Re: 2011 CTSV problem

    Codes 171 & 174 get triggered from a lean condition. Could be a vacuum leak, a crack in the Intake manifold, MAF sensor or fuel problem. Good Luck.

  4. #3
    thebigjimsho's Avatar
    thebigjimsho is offline Cadillac Owners 10000+ Posts
    Automobile(s): ZIP
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    In the barrel of a gun...
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    49,681
    Yeah, I've heard of something similar. However, being on the mobile site makes it hard to search. Hopefully, someone else can chime in...

  5. #4
    Miller_v is offline Cadillac Owners Member
    Automobile(s): 2011 CTS V
    Join Date
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    Thread Starter

    Re: 2011 CTSV problem

    UPDATE from dealer:

    They are replacing the wiring harness that connects to the fuel pump, draining the fuel and adding 92 octane and replacing the fuel pump again. .

    Well see what happens this time..

  6. #5
    Cadillac Cust Svc's Avatar
    Cadillac Cust Svc is offline Cadillac Customer Service
    Automobile(s): All Cadillac vehicles!
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    Re: 2011 CTSV problem

    Thanks for the update, Miller_v! I am hoping that a wiring harness replacement will do the trick, but if you continue to have issues and the dealer is stumped, feel free to email me your name/VIN/dealership anytime (Katie_Lucille@gmexpert.com) and I can research the issue further for you.

    Best,

    Katie
    Cadillac Customer Service

  7. #6
    Miller_v is offline Cadillac Owners Member
    Automobile(s): 2011 CTS V
    Join Date
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    Thread Starter

    Re: 2011 CTSV problem

    Quote Originally Posted by CTSV Racing Marc View Post
    what octane were you running before they added 92?
    We always put in premium

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