P2187 and P2189 codes on 2004 SRX
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Cadillac SRX First Generation Forum - 2004 - 2009 Discussion, P2187 and P2189 codes on 2004 SRX in Cadillac SRX Forums; getting these two code with engine light on. any ideas on most likely issue that would cause these codes? I ...
  1. #1
    tapdad1 is offline Cadillac Owners Member
    Automobile(s): 2004 SRX AWD
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    P2187 and P2189 codes on 2004 SRX

    getting these two code with engine light on. any ideas on most likely issue that would cause these codes? I changed plugs and kept same intake gastic, also cleaned mass air flow and throttle body.

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  3. #2
    glake89's Avatar
    glake89 is offline Cadillac Owners Connoisseur
    Automobile(s): 05 srx awd v6, 07 Solstice GXP
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    Re: P2187 and P2189 codes on 2004 SRX

    You have a vacuum leak on the intake side that affects both banks (R&L cyl.banks). Start at the MAF (next to air filter box) and work your way to intake manifold looking for loose clamps, bolts etc. or holes (splits). Make sure PCV hose is attached to intake air duct.
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