Question about 1997 Buick Riviera

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Outside temperature gauge for my malfunctions

Sometimes the outside temperature gauge for my 1997 Buick Riviera malfunctions. It will read temps way off. If it's winter, the gauge can read 75; then the heater/defroster will not turn on.

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The problem is a bad ambient air temp sensor or a broken wire to that sensor. The sensor usually is located in the front of the engine bay on the support for hood latch, between the outer grill and the radiator/condensor assemblies.

Posted on Jul 22, 2009

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A/C blows but not cold air....the temperature reading is off...but then sometimes the temperature reading is fine and the air works


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On my 1998 Buick Riviera the outside temp display is not correct. How is this repaires


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1997 Riviera: fuel guage doesn't read correctly...


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I had this problem with the steering column. It had to be replaced! Had a hard time locating a replacement...2 weeks/$580 part/intallation. Good Luck.

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Heater is weak


a couple likely causes:
1: the engines thermostat is stuck open preventing the engine from warming up quickly. If the engine temps read normal (warm) but the heater is still cool, then....
2. the Heater control valve (a valve that prevent hot water flow when you dont want it), may be clogged or malfunctioning. this is typically located on the heater hoses between engine and firewall.

Dec 24, 2008 | 1997 Buick Riviera

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