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Dan, Technician
Category: Buick
Satisfied Customers: 24443
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
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Have a 96 riviera(opt NW9), and it is giving codes;72-left front idle

Customer Question

have a 96 riviera(opt NW9), and it is giving codes;
72-left front idle isolation valve circuit #2 (malf)
69-left front inlet valve circuit (current down)
85 left rear inlet valve circuit (current down)
do these codes in anyway sound like it would be the ABS pump actuator, and module combination? I didnt get codes for actual speed sensors.
Submitted: 2 years ago.
Category: Buick
Expert:  Dan replied 2 years ago.
Hello, my name is ***** ***** I'm here to help get your problem solved. These codes are related to the hydraulic control assembly. I would recommend replacing the hydraulic control assembly with the abs module to make sure problem does not come back. You can buy parts from salvage yard for around $200 then another $200 to have installed at a shop. Let me now if you have more questions, thanks.