Question about 1999 Oldsmobile Silhouette

1 Answer

I've been reading alot of people having trouble with the radiator fans on 99 oldsmobile silhouette not working but have found NO solutions. All the gaskets on the motor have been replaced, the thermostat and new tcs but the fans still will not engage until motor reaches 220-230 degrees, by then its too hot. Do you have a real solution to the problem?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Oldsmobile Master
  • 14,585 Answers

Most cars temperatures are at around 225 degrees before the high speed fans turn on. And then it only reduces it to around 210. If your car is too hot, first you will hear the lifters pinging and tapping. Then you may hear some rod knock. After that your car will just shut down. Too late then.

Posted on May 13, 2014

6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 260 Answers

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

  • 2 Answers

SOURCE: 99 olds silhouette flush and fill

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

Posted on Jan 06, 2009

  • 234 Answers

SOURCE: 99 vw beetle, been overheating for a couple weeks

Check around, I'm sure that you can find someone that can do it for less money.

I don't know if the radiator was bad or not, so I can't offer advice on that.

If your mechanic charges $100.00 per hour or more, I can see where they get the quote from.

If you need more assistance, post a comment.

Where are you located?

Maybe we can help suggest a mechanic for you.



Posted on May 10, 2009

  • 8 Answers

SOURCE: lower intake manifold gasket leaking 02 Olds Silhouette

This is basicly a very time consuming job rather than a physically hard one to complete. In order to replace the gasket you must remove the intake plenum,throttle body, and misc. vacuum hoses. The wiring harness connections must also be disconnected. Finally the intake manifold is exposed. The bolts holding the manifold to the block are removed exposing the leaking gasket. After removing the push rods and placing them in the correct order to be replaced the gasket and sealants can be removed. Finally replace everything in reverse order. Be sure to consult a GM manual for correct bolt torch specs. The correct specs for the manifold bolts usually come with the gasket. Make sure to change your oil a few times after this job in case any coolant entered the block. Also,change the thermostat and the oil seal on the distributor half shaft cap while you have everything off. Good Luck

Posted on May 12, 2009

  • 1596 Answers

SOURCE: cooling fans dont engage! 1998 oldsmobile silhouette!

Your Problem Can VERY WELL BE with the Temp Sensor, As It Is the First in This Electrucal Circut . it Waits for 210-230 Degree Engine temp and Gives that Sygnal to the ECM then ECM Grounds out the Cooling FAN RELAY To Turn ON the FANS and the Temp Sensor is Usualy THE #1 Culpret Closley in front of the RELAY.
There are 2 Sensors On this Vehicle The One You Replaced and One Located At Trans Side of
Engine Closer to Front of Vehicle At the Head ,Thereis a 2 wire Plug On it and This Sensor Goes to the ECT witch CONTROLS COOLING FAN RELAY. Hope this Helps and if you Need A Diagram For this It Must be Emailed as FixYa Does NOT Support Large Picture Files. My Email Add. Is MY
Screen Name Here on FixYa

Posted on Jun 15, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

How to fix fan 1 on 2001 oldsmobile silhouette

Cold be the fan, the temp sensor, the wires, the relays, or the ECM. Have the code read.

Feb 07, 2015 | 2001 Oldsmobile Silhouette

1 Answer

Where is the radiator drain plug for a oldsmobile silhouette 1999

On my 99 Silhouette with a 3400 V-6 the drain plug is on the drivers side of the radiator at the bottom adjacent to the mounting post casting on the bottom of the radiator.

Jul 13, 2014 | 1999 Oldsmobile Silhouette

1 Answer

Overhead dic doesn't work on my 99 oldsmobile silhouette

Unfortunately I have found this to be an issue in dic electronic it's self, the way to fix that I know of is to replace it. I have the same issue in my 98 transport I have taken it apart and can't find any bad contacts in the unit.

May 30, 2014 | 1999 Oldsmobile Silhouette

1 Answer

Radiator fan doesn't work

Always keep an eye on your engine temp gauge, find rad thermo switch and bridge connection (it's a switch anyway) this should bring on rad fan. Thermo switch usually on thermostat housing or radiator body housing !

Aug 26, 2012 | 1999 Oldsmobile Silhouette

1 Answer

Recharge A/C question.

The amount should be on the radiator fan shroud.These system hold around 2 lbs.of freon when empty.This also depends on if you have rear a/c or just front a/c.If there is some freon in the system the compressor will cycle more often and the system will not get very cold.The other thing is if there is a leak the freon you put in will eventually leak out.There is a bulletin for a/c leaking from the a/c condenser on these vehicles.I have found a few of these with leaks and they where on the passengers side lower bracket.If you can get the freon with the dye in it then you should use this that way if it leaks out you will be able to check for the leak.Hope this helps and let me know if you need more help.Good luck.

Jul 13, 2010 | 1999 Oldsmobile Silhouette

1 Answer

I have a 2000 Oldsmobile Silhouette that just started overheating because radiator fans don't come on. Can you tell me where the relays/fuses are located? I looked in the fuse box but none of them seem to...

In the black plastic box in the engine bay on the left or right side or against the firewall. The is top held down by plastic clips. Release them and look at the bottom of the top piece will be a diagram that will tell you where the cooling fan relay or relays are.

Jun 01, 2010 | 2000 Oldsmobile Silhouette

1 Answer

99 olds silhouette flush and fill

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

Nov 30, 2008 | 1999 Oldsmobile Silhouette

1 Answer

2000 oldsmobile silhoutte

their is a radiator fan switch or coolent temp sensor that cuts it on possibly a relay but first unplug the sensor fans should turn on if not possible it has a bad fan motor

Jul 22, 2008 | 2000 Oldsmobile Silhouette

Not finding what you are looking for?
1999 Oldsmobile Silhouette Logo

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top Oldsmobile Experts


Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8210 Answers

Are you an Oldsmobile Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides