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Randall C
Randall C, ASE Master Tech
Category: Cadillac
Satisfied Customers: 12803
Experience:  ASE Master Tech, 32 years exp,Cadillac 6 yrs
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1999 cadillac deville iac valve, where is it located?

Customer Question

1999 cadillac deville iac valve, where is it located?
Submitted: 1 year ago.
Category: Cadillac
Expert:  Randall C replied 1 year ago.

Hello, it is along side of the throttle body,.I included a link to location and some repair information

The link is a picture of location

  1. Remove the two IAC valve attaching screws (4) from the IAC valve (1).
  2. Remove the IAC valve (1) from the throttle body.
  3. Remove the IAC valve O-ring from the IAC valve.


NOTE: The IAC valve may be damaged if installed with the cone (pintle) extended more than 28 mm (1-1/8 in) . Measure the distance that the valve is extended before installing a new valve. The distance from the idle air control valve motor housing to the end of the idle air control valve pintle should be less than 28 mm (1-1/8 in) . Manually compressing the pintle until the extension is less than 28 mm (1-1/8 in) .