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

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?

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) 

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

Testimonial: "Best answer I've received to date, thanks, hope it's somewhat easy to replace......."

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

where is the filter on an 03 rendazvous

Ricky Peters

• 2620 Answers
• Posted on Jan 26, 2012

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.