Question about Buick Cars & Trucks
Hi Julia , why do you believe you need to find the temp sensor ? Temp gauge not working ? The cooling Temp sensor is a input to the PCM / ECM - engine computer .
Engine Coolant Temperature Gage
The instrument panel cluster (IPC) displays the engine coolant temperature (ECT) as determined by the powertrain control module (PCM) or the powertrain control module (PCM). The IPC receives a class 2 message from the PCM indicating the ECT. The range on the ECT gage is between 60-125°C (140-260°F). The ECT gage defaults to 60°C (140°F) or below if the PCM detects a malfunction in the ECT sensor circuit. Refer to Cooling System Description and Operation .
Would have DTC- diagnostic trouble code stored in Instrument cluster or the check engine light would be on . Before replacing a part you may not need take it to a qualified repair shop to have it diagnosed .
Posted on Apr 08, 2017
hi im wes the o2 sensor is always in the exaust newer buicks have one before the converter (sometimes in the exaust manifold) one after the converter if it has duall exaust it could have four
left bank sensor one is before the converter on drivers side bank two sensor 2 would be passanger side after the converter does this help?
Posted on Mar 12, 2009
u need to buy the special coolant to your car i have the same car whit the same problem and is cause to the incorrent cooland the cooland to your car is the DEX-COOL if u dont find that u need some hit (silicate-free)
Posted on Apr 29, 2009
Hi usually the symptoms your having are a result of the oxygen sensor(or lambda sensor for its technical name) being at fault.
now the reason it points to this being at fault is that it only starts working when the engine is near normal temp then if the car wont start till its cooled down then this is because the sensor then stops working when its cooled down so your car will run again until it gets hot,
you need to check where the sensor is located in the exhaust if it comes before the catalytic converter then the chances are its the sensor at fault but if it comes after the cat then it could be the cat that is at fault.
my best guess would be the sensor as your car is playing up exactly as if this sensor was not working.
i hope this is some help to you
let me know if you need further assistance ok
plz rate this solution as i have a whole page of unrated posts, thanks
Posted on Sep 16, 2010
Testimonial: "Best answer I've received to date, thanks, hope it's somewhat easy to replace......."
Its mounted on the intake manifold on the drivers side rear of water outlet.
Posted on Jan 26, 2012
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