Question about 1998 Oldsmobile Silhouette
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Posted on Jan 02, 2017
SOURCE: Vacuum Lines
TRY GETTING ANOTHER DIAGRAM EITHER FROM A SHOP OR THE DEALER.THOSE LINE ARE SOMETIMES INSTALLED FOR ACCESSORIES.(MAYBE YOU DONT HAVE)THATS ONE POSSIBILITY.TRY PLUGGING UP THE LINE WITH A SCREW TO SEE IF IT EFFECTS THE WAY THE CAR IDLES.BY THE WAY,CAN YOU IDENTIFY WHERE ITS COMONG FROM?
Posted on Dec 12, 2008
most likely idle air control sensor or low engine coolant I know sounds funny but IAC uses coolant to regulate idle. Idle air control valve or throttle body positioning sensor.
Posted on Feb 26, 2009
SOURCE: I have an oldsmobile cutlass
Hi, one part is the solenoid and the other is a sensor (diagnostic switch). The vacuum supply from the carburetor goes to the solenoid, which has 2 ports. The other port goes to the EGR valve. There should be a "T" in that line with a hose running back to the sensor. The computer will turn on the solenoid when it's appropriate to pass exhaust gas back thru the intake. When the computer turns on the solenoid, the valve will open and the sensor will also detect the vacuum to let the computer know that the solenoid did indeed pass vacuum to the valve. I don't think it matters which port you plug the lines into on the solenoid, but the sensor must T off the line that goes to the valve. Please let me know if you have more questions, and thanks for using FixYa.
Posted on Jul 17, 2011
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