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I cannot seem to find the engine cooling temp sensor on a 2007 buick rendezvous

Posted by julia robinson on

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Jeff Armer

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  • Buick Master
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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

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5 Related Answers

Anonymous

  • 54 Answers

SOURCE: O2 sensors on 2002 buick rendezvous

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

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Anonymous

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SOURCE: 1999 buick century 3.0 v6 engine cooling fan not turning on soon enough allowing the engine to run hot. Is this a sensor control problem that is an easy replacement?

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

paul proctor

  • 4102 Answers

SOURCE: I have the same exact problem, once the 2002 Buick

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......."

Anonymous

  • 1 Answer

SOURCE: how do you replace a coolant temp sensor on a 2003

where is the filter on an 03 rendazvous

Posted on Dec 10, 2010

redds55

Ricky Peters

  • 2620 Answers

SOURCE: is there a coolant temp sensor on a 1995 buick le sabre 3800tuned port injection engine and where is it located

Its mounted on the intake manifold on the drivers side rear of water outlet.

Posted on Jan 26, 2012

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I have the same exact problem, once the 2002 Buick rendezvous gets hot it won't start till it cools down. Forget about any diagnostic codes, Buick dealer told me there is nothing he can find. The fan...


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

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