1998 Oldsmobile Intrigue Cassondra

Tiny
CASSONDRAGAGE
  • MEMBER
  • 1998 OLDSMOBILE INTRIGUE
  • 8.0L
  • FWD
  • AUTOMATIC
  • 135,000 MILES
My 1998 Oldsmobile Intrigue blows cold air when heat is on and also overheats
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Tuesday, December 2nd, 2014 AT 3:05 PM

8 Replies

Tiny
CARADIODOC
  • EXPERT
That's not much to go on. First check the coolant level. If it's low, it won't circulate hot coolant to the radiator which will cause overheating, and it won't circulate hot coolant to the heater core, so you'll get unheated air in the car. The clue is to feel the upper radiator hose when overheating is indicated by the dash gauge. If it is cold, coolant isn't circulating.
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Tuesday, December 2nd, 2014 AT 3:20 PM
Tiny
CASSONDRAGAGE
  • MEMBER
Thank you for the advise I'll try that and if need I'll check back in with you experts to check the next step. I also put a new thermostat on and the new radiator cap also flushed the radiator due to rust and sludge?
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Tuesday, December 2nd, 2014 AT 4:05 PM
Tiny
CARADIODOC
  • EXPERT
If you installed a new thermostat, on some engines you have to burp the air pocket under it. There may be a bleeder screw on the thermostat housing, or you can unscrew a sensor near it. Thermostats don't open in response to hot air. They have to be hit with hot liquid. If that air isn't bled out, the thermostat won't open so the engine will overheat, although normally that hot coolant will still flow to the heater core and you'll get real hot air, not cold like you're getting.
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Tuesday, December 2nd, 2014 AT 4:56 PM
Tiny
CASSONDRAGAGE
  • MEMBER
OK thanks you and your team are great help thank you I'll keep you posted!
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Tuesday, December 2nd, 2014 AT 5:03 PM
Tiny
CASSONDRAGAGE
  • MEMBER
OK found out my 98 Oldsmobile intrigued needs a water pump and got one to replace the old one I just need expert advice on how to install it.
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Sunday, December 7th, 2014 AT 3:13 PM
Tiny
CARADIODOC
  • EXPERT
I'm not sure if that's really a do-it-yourselfer project, plus, I'd want to know how someone came to that conclusion that a new water pump is needed. If you're sure you want to tackle this, get a copy of the manufacturer's service manual, then read through the pages of instructions. You can also get the information online by clicking on "Manuals" under the "Repair and Service" tab at the top of this page.
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Sunday, December 7th, 2014 AT 5:49 PM
Tiny
CASSONDRAGAGE
  • MEMBER
OK. I'm not tackling it my self. I have someone that works on cars trying to fix it for me. And thats what he came up with. I can't run my heater and defrost but for only 25 min in town I'm to scared my car overheating and need a jump after shutting it off. Need some good advise any would help thanks in advance.
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Sunday, December 7th, 2014 AT 5:58 PM
Tiny
CARADIODOC
  • EXPERT
I'm up against a dying laptop battery so I have to be quick. It sounds more like you have a leaking cylinder head gasket. There's a fast and easy chemical test for that.

We have to discuss this battery issue further. GM has had a real lot of problems with their redesigned generators starting with 1987 models. If yours is defective, to prevent numerous repeat failures, replace the battery at the same time unless it's less than about two years old.
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Sunday, December 7th, 2014 AT 6:09 PM

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