Best Answer

Sorry, not an answer, but another account. I have the same problem. It will read 50 degrees no matter what the temp is as its normal state. Sometimes though it will start to read accurately but seldom. I have also experianced negative readings and it'll drop 1 dgree at a time. When this happens, my air conditioning will start to blow warm. Then when ever it feels like it, severl minutes usually, it will start back up to 50 degrees and the cold air returns. It is driving me nuts! HELP! I finally took it to the dealer and it needed the Ambient Temperature Sensor needed changed. the part was under $4.00! To provide more clarification on this, as I just did it yesterday (12/3/2008), it takes maybe 2 minutes of time to change this part out and it cost me about $25 from a Chevy dealer. (Autozone wanted a couple bucks more for it) You will get a sensor and a bracket for it when you purchase it from a dealer, at least that is what my dealer had. Just take the sensor out of the bracket in order to install it and replace the the old one on your vehicle. There are 4 small push in style clips holding the sensor into the bracket. This is also the same way that the sensor will mount into the hole where it goes in your vehicle. To locate the area, go ahead and pop the hood, although you can see the sensor without doing this, you will need the hood up to disconnect the wires from the old sensor. It is just a plastic clip holding it on to the sensor so it is very easy to disconnect. Look through the front grill of the vehicle just to the right of the hood latch and you will see the tip of the sensor sticking out through a hole. You might be able to reach a finger through the grill to touch the sensor (near the top of the grill) or use a screwdriver to push it back out of the hole it is in. I unbolted the top cover over the grill, this is the topmost cover on the vehicle and has 2 bolts that can be unscrewed and I believe 3 plastic retaining pins holding it on. This made it easy to get to the sensor and unclip the wires from it. You should have no trouble putting the sensor back into the hole it came out of it. Takes longer to undo the cover than to actually change out the sensor.

User Avatar

Wiki User

โˆ™ 2008-12-04 13:48:08
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why would the thermometer always read 50 degrees for the outside temp on your 02 Trailblazer?
Write your answer...
Related questions

What are the units on a thermometer known as?

Whichever scale is used they are always Degrees.

What if your outside temperature indicator on a 2007 trailblazer is way off how do you correct it?

My temp indicator went crazy then always stayed at 50 degrees. Things still worked ok. The sensor is under the front hood mounted on the frame (follow the wire). it is an inexpensive dealer part ($5) and easy to replace .

How does a thermometer work as a tool to measure thermal energy?

The first units of heat (Fahrenheit and Celsius) were created based on the thermometer. Not the other way around. That way, the thermometer would always be accurate. The thermometer works by putting a specific amount of mercury (a strange metallic substance) inside a tube of a specific volume. When the thermometer is heated, the mercury expands, pushing itself up the tube. The mark that it reaches is measured and recorded in degrees.

What is the triangle rule?

if you are talking about the triangle rule as in angles, the triangle rule is that all the interior ( on the inside) angles always add up to 180 degrees. The exterior (on the outside) angles always add up to 360 degrees

How many degrees are there in an interior triangle?

Triangles are always 180º when the angles are added up. There is no inside angle verses and outside angle.

What are the disadvantages of a forehead thermometer?

The disadvantages of forehead thermometer is thatit is not always accurate, and the screen cant be seen well after a while.

How long to smoke a 4 lb turkey breast using an electric smoker?

Approx. 30 minutes per pound (3.5 hours @ 225 degrees) I always turn the heat up to 275 degrees for the last 30 minutes to get crisper skin!) Check the internal thermometer after 3 hours of smoking) Always continue smoking until the internal temperature reaches 165 to 170 degrees!!!

How warm do hedgehogs have to be to survive?

In order for hedgehogs to survive, their cage temperatures have to be heated to at least 23.33 degrees Celsius (74 degrees Fahrenheit) and maintained between 23.88 and 24.44 degrees Celsius (75 and 76 degrees Fahrenheit). Lower temperatures may make hedgehogs try to go into hibernation. Cages always should have at least one thermometer, preferably two.

What is the ideal superheat?

17 to 20 degrees is should always check dry bulb at return air and outside temp to determine the correct reading

Do you need sun screen if it is 70 degrees outside?

You always should wear sun screen no matter the temperature even on cloudy days you can get affected by rays.

How long to cook a fresh ham butt portion around 10 pounds?

The general rule of thumb is 25 Minutes per Pound at 350 degrees. So that would be 4 hours and 15 minutes. Always use a Meat Thermometer to ensure the ham has reached 160 degrees.

Is The sum of the exterior angles of a polygon is always 180 degrees?

No because it's always 360 degrees

Is a triangle always 180 degrees?

The sum of the three interior angles inside a triangle is always 180 degrees.

What is the temp of the car air conditioner at the outlet?

The automotive rule is 25 degrees colder than the outside temperature but its always colder so on a hot day of around 90 degrees with the vehicle either out of the sun or running downthe road it should be around 42 to 47 degrees...........

Where is it always 990 degrees Fahrenheit in celsius?

990 degrees Fahrenheit = 532.2 degrees Celsius.

Can a triangle add up to 190 degrees?

No, always 180 degrees.

What is the temperature outside during autumn?

It always depends on the country In England, it can vary between 5 & 20. (degrees Celsius) In Florida - 30-50 Canada it can be -10 to 10

What month bee as busy making honey?

Bees are always busy making honey but don't usually leave the colony if the outside temperature is below 7 degrees Celsius.

What transmission oil should you use for your 03 trailblazer?

Most GM products, including the 2003 Trailblazer, take Dexron III transmission fluid. However, it is always a good idea to consult the owner or maintenance manual to be certain.

Where is the low pressure valve on the AC for 2002 Trailblazer?

On all GM products it is almost always on the accumulator / receiver drier.

What does a parallelogram and a rectangle have in common?

They both have 4 sides (excluding the inside and outside).The opposite sides of both shapes are parallel.The sum of all internal angles of both shapes is always 360 degrees.The sum of all external angles of both shapes is always 1080 degrees.they both have two sets of parallel lines

What is the Degrees of a right angle?

the degree of a right angle will always be 90 degrees.

Is it possible to have a 181 degrees triangle?

No, it's not. A triangle is always 180 degrees.

What do the angles add up to in a quadrilateral?

The interior angles of any quadrilateral add up to 360 degrees.For quadrilaterals, 360 degrees total always, Triangles are always 180 degrees

Why does my gas gauge on a trailblazer 2005 always marks empty?

there is a sensor inside the gas tank. if you have the GM dealer replace it.. its about $500.00.