Question about 2000 Oldsmobile Intrigue

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3.5 olds intrigue overheating. Why?

2000 3.5 olds intrigue overheating at highway speeds. Why? Seems to be OK in town drivng. Antifreeze level is OK.

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Replace the radiator, and flush the system out. Don't use Dexcool in the system as this is the source of many cooling problems on GM's.

Posted on Jun 18, 2009


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After driving on the highway for a distance and getting off at an exit or stopping for any reason there is a knocking sound and engine appears to be missing. This doesn't happen with town driving or...

check that the oil level is correct as extra oil foams up and the oil pressure falls. Around town driving does not put a strain on the cooling system but continuous highway driving does and shows up as blocked cores and collapsing bottom radiator hoses. Ignition timing is critical at high speeds so ensure that that is correct. Check that the temperature gauge is accurate as the noise and missing is indicative of an overheating engine.

Apr 04, 2014 | Cadillac Cars & Trucks

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Overheating when driving around town with the AC on--how do you fix the propblem?

Now What !

You should have stopped using it when it first overheated,
& had the issues diagnosed.

You need a dealer or repair shop, unless you have a full set
of factory work shop manuals & powertrain control & emissions
diagnostic manuals, for the year of your car,avail from Helm.Com

Jul 24, 2012 | 1998 Lincoln Town Car

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My Mazada 2000 MPV seems to be overheating when driving at a high speed or going up hill. The egine smeels hot but none of the gauges are showing as overheating.

Check coolant level. if its ok than ride. If from expansion cap coming some flush or many many coolant aut check thermostat and check cooling fan system is sensor ok and relay.

Sep 21, 2010 | 2000 Mazda MPV

2 Answers

Rear of car shakes at highway speeds

tires not balanced or needs alignment

Aug 02, 2010 | 2000 Nissan Maxima

1 Answer

Rpm drops at idl speedand stalls ok at highway speed


not knowing the engine type fitted in your Olds, I suggest to check / clean or better replace the idle control valve - also check all hoses for leaks,

this should solve your problem.

If not, the ignition system should be checked for damage (wiring, plugs etc,)

Jun 25, 2010 | 1999 Oldsmobile Intrigue

1 Answer

2003 Town & Country - no heat or gauge movement

If the coolant level (antifreeze) level is low there may not be enough fluid in the system for the temperature sensor to register a proper reading ( think of it as holding an oral thermometer just outside of your mouth).

Insufficient fluid passing through the heater core (small fan that blows through a small heated radiator) may not be enough to produce heat.

However: At increased speeds the engine may be heating what little fluid there is to a point to supply heat to the heater core, and register on the temperature sensor.

Feb 28, 2010 | 2005 Chrysler Town & Country

3 Answers

2000 Olds intrigue overheating

i have a 2000 olds intrigue thats been overheating alot lately the other day my drain plug for my radiator came on the way to work so i lost all my antifreeze on the way, i got to work and wound getting another plug to replace...the one that came out...topped off antifreeze...anyhow i go home and car overheats on the way home...i took it to a radiator shop today and they checked for, leaks, checked the water pump, pressure tested it...and they told me that the only thing they found was a airlock, but however the guy did recommend taking it to a mech and having it checked for a blown headgasket, so i go home today and i noticed my temp gauge going up and down on the way home it would get hot then cool down then get hot again...the car did eventually start to overheated so i pulled over and let the car cool down...i know this is getting frustrating, so do you have any recommendations or solutions as to whats cause the car to overheat.

Nov 25, 2009 | 2000 Oldsmobile Intrigue

2 Answers

My 2000 old 3.5 l intrigue overheats at 1500 rpms and below. I have changed throttle body gasket, thermostat and water pump and it still is overheating. Where do I go next.

The orange antifreeze that is used is know to gel up and after a few years when the mixture is no longer 50/50, the antifreeze will crystallize and plug up water journals and jackets. The orange antifreeze has a life of 5 years or 150,000 miles and any longer will have the cooling system plugged up with crystals. Best thing to do is to flush out the cooling system with Preston coolant flush, use the dry powder to flush the system out and follow the instructions, then replace the coolant with 50/50 (water/antifreeze) mix. If your not sure how to mix, you can buy them premixed. This should help keep your cooling system 100%, keep me posted. Be glad to help get your car running 100% and you could also replace the temperature sensor, it's located at the manifold just in front of the thermostat housing. The tip of the sensor may have crystal formation, giving it a false reading. 

Jul 16, 2009 | 2000 Oldsmobile Intrigue

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