Question about 1999 Oldsmobile Intrigue

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Overheating, Miss Firing, and Running Rough

My 1999 Olds Intrigue is running hot and we've replaed the Thermostat, Water Pump, and even flushed out the system.. It's miss firing in random cylinders and running rough only when it's hot.. When it's cool, it runs like a dream... Think maybe headgasket? but no anti-freeze is leaking.. Changed also Mass Air Flow Censor, and replaced spark pluggs and wires..

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Smell the coolant. Is there any hint of gas smell? Also look at oil, any coffee coloring indicates problems.

Posted on Jun 30, 2009

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Why 1998 olds intrigue is running hot.


1) Is it really running hot, or is the temperature sending unit or gauge incorrect? You could use an alternate temperature sensor to test - infrared temperature gauge.
2) Just because the radiator was cleaned out doesn't mean it isnt blocked. Check to see that water will flow through the radiator.

Jun 30, 2014 | 1998 Oldsmobile Intrigue

1 Answer

My 2001 olds sil mini van keeps overheating :( we have replaced the water pump temp sensor thermostat and flushed it with Prestone Super radiator flush and put in peak antifreee 50/50 so to not mess up...


How long can you drive it before it gets hot ?
Are you positive all of the air is out of the cooling system ?
You could run it without the thermostat to check for a blockage in the system that would prevent flow. If the block is full of coolant, and the water pump is pumping it thru the passages, you should have heat.

Jan 29, 2013 | Cars & Trucks

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My engine is overheating. 98 Olds Silhouette. I changed thermostat, thanks to Fix ya.com assistance. now engine is still overheating. Are my next steps checking and or changing the water pump? Or am I...


Alway worry about the head gasket. Run it if you fell water running threw the lines(check all of them)it may not be the pump. Check water levels. If you fell water running and dont see water on the ground check to see if the fan is kicking on. You may just have to do a heavy flush. Now it if the temp is running cooler but still hot you have to replace the thermostat again the wax after it over heats breaks down. If its still running hot there go to your parts store and rent a code meter. It helps some times Good luck

Sep 11, 2012 | 1998 Oldsmobile Silhouette

1 Answer

Our mercury sable 1993 keeps overheating


are the cooling fans running? is it loosing water from exhaust or in the oil check these things water is going somewhere

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I have a 1999 oldsmobile intrigue with a 3.5 engine and it is overheating what might be the problem?


It's usually the thermostat, I woud pressure test the cap. It may need to be flushed. Are the fans working? Is there a 50/50 mix of anti-freeze

Sep 11, 2011 | 1999 Oldsmobile Intrigue

1 Answer

Overheating: 1999 bmw 323i m series 2.5 ..Installed: new water pump , thermostat. radiator,new Water Reservoir, cap.. hose on top side hot , lower hose cold even when engine is hot..no water circulating at...


the water pump and thermostat should have solved it. an air pocket can cause that but usually not to that degree.

don't get one of those cheap *** plastic impeller water pump for sissies. Get the metal impeller one. get a cool running thermostat and drill two 3/16" holes in it 180 degreess from each other. you may have installed the t-stat backwards.

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The temp gauge says the engine is hot but, in


I'm not certain if this engine has coolant bleeder valves, but if it does, make sure there aren't any pockets, particularly around the sending unit. Something is fooling the computer into thinking that things are really, really hot.

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2 Answers

1999 Oldsmobile Intrigue Overheating it goes down sometimes,


it probably the water pump...id bet it goes out shortly when you have to rev the engine like that it hurts the car and if the water pumpgoes out its going to fly apart and do more damage

Feb 08, 2009 | 2000 Oldsmobile Intrigue

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