Question about 1999 Oldsmobile Silhouette

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How to change a thermostat on 1999 Oldsmobile Silhouette?

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  • Oldsmobile Master
  • 8,522 Answers

The thermostat is on the end of the engine (driver's side), by the transmission. See figure below. Also, please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat and let me know if you have questions.

Posted on Nov 14, 2010

  • Jeff Turcotte
    Jeff Turcotte Nov 14, 2010

    sorry, forgot to add picture and procedure






    3.4L Engine




    1. Disconnect the negative battery cable.

    2. Remove the air cleaner and duct assembly.

    3. Partially drain the cooling system into a suitable container, to a level below the thermostat.

    4. Disconnect the radiator hose from the coolant outlet.

    5. Unfasten the coolant outlet retaining bolts.





    1. Remove the outlet, then remove the thermostat.





    1. Thoroughly clean the gasket mating surfaces.




    To install:



    1. Install the new thermostat with the pellet towards the engine.

    2. Install the outlet to the intake manifold. Apply RTV sealant to the housing bolts and tighten to 18 ft. lbs. (25 Nm)

    3. Reconnect the radiator hose to the thermostat coolant outlet.

    4. Install the air cleaner and duct assembly.

    5. Refill the coolant and check for leaks.


    When adding coolant, it is important that you use DEX-COOL® (orange colored, silicate-free) coolant. If silicate coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner.



    1. Connect the negative battery cable.

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Posted on Jan 02, 2017

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SOURCE: Dead battery in 1999 Oldsmobile silhouette

you have to take the fuse box out. unhook the hot wire from the front of the fuse box.then there is a little black holder with which you can take a flat head screwdriver and lift the little peg in the middle of it which will then come out. then just pull the fuse box off to the side and u should be to the battery.hope this helps

Posted on Mar 28, 2009

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SOURCE: 99 olds silhouette flush and fill

Use a Turkey Baster to **** the extra fluid out.

Posted on Jan 06, 2009

autodr
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SOURCE: Olds silhouette heater blows cold air

as long as the engine temperature is normal, i would suspect a clogged heater core, the dex-cool antifreeze is notorious for building up deposits in cooling system. have heater core flushed first to see if it makes any difference

Posted on Nov 16, 2008

buffalonyman
  • 1865 Answers

SOURCE: how do you change spark plugs on a 1999 oldsmobile

I have a tool for removing the spark plug boot on sale at http://taeckertindustries.com/prod05.htm

After removing the boot, use a combination of extensions and universal joints with your ratchet wrench

Posted on Nov 12, 2009

  • 12650 Answers

SOURCE: 1999 Oldsmobile silhouette brake light and tcs

check the abs sensors common to hit or damage the wiring or knock connection loose when doing a brake job the traction control system[tcs] is tied into the abs system

Posted on Jul 21, 2010

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3.1L Engines
  1. Disconnect the negative battery cable.
  2. Partially drain the cooling system into a suitable container, to a level below the thermostat.
  3. Disconnect the radiator hose from the thermostat housing.
  4. Unfasten the thermostat housing bolts.
  5. Remove the housing. Note the installed position of the thermostat, then remove the thermostat and gasket.
  6. Thoroughly clean the gasket mating surfaces.
69138cc.gif
Exploded view of the thermostat and housing assembly

To install:
  1. Position the new thermostat in the manifold.
    NOTE The pellet MUST go towards the engine.

  2. Install a new gasket, using sealer as necessary.
  3. Install the housing and secure with the retaining bolts. Tighten the bolts to 25 Nm (18 ft. lbs.)
  4. Reconnect the radiator hose to the housing.
  5. Replace the coolant. Check for leaks.
  6. Connect the negative battery cable.

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99 olds silhouette flush and fill


Use a Turkey Baster to **** the extra fluid out.

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