Question about Cars & Trucks

1 Answer

2009 chevy tahoe 5.3 l 8 cyl lt outside ambient temperature sensor stuck at 26 degrees it is 40 degrees today. Is there a way to reset it or does it or something need to be replaced

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Cars & Trucks Master
  • 7,733 Answers

Take it out and check for any issues. If any worn just replace it.

Posted on Mar 29, 2015

  • rick mcl
    rick mcl Mar 29, 2015

    Already removed looks clean no damages unplugged and reseated still same issue let truck run for 20 minutes no change

×

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 8 Answers

SOURCE: external temp reading is wrong... can it be reset?

i belive thats a default reading for that sensor replace it there cheep buy from dealer and locate it in front grill som times debris hit tese and mess them up simple repair probably only one screw holding it on

Posted on Apr 01, 2009

  • 630 Answers

SOURCE: temperature control sensor?

Sounds like a loose connection -38 is probably the open circuit position. Not sure where the sensor would be though.

Posted on Jul 20, 2009

  • 16 Answers

SOURCE: 1994 Buick Park Avenue The outside temperature sensor

Open the hood

Find the "hood spring", sticking up from the frame in front of you

The sensor is located almost directly below that spring, about two feet down on a bracket that runs vertically from the bottom of the frame where the spring is mounted.

It's easy to replace, with a simple connector and a couple screws.

Posted on Jan 07, 2010

  • 98 Answers

SOURCE: Outside temperature reading on my 2009 Chevy

the outside temperature sensor on vehicles takes the temperature of the air about 2-3 inches off the ground, that close to the ground it might be a couple degrees colder than the temperature on the thermometer you have mounted in the window of your house.

Posted on Feb 25, 2010

SOURCE: Outside temperature reads 50 at all times

if your outside temp is wrong on your 2002 Envoy here is how you fix it. part number 15047946 sensor. looks like the wrong part..it's not. take the brace part off of it by pressing the clips and slide out the part you need. Loosen the 4-5 bolts from the top of the grill..attached to brace right on top of the grill..just pull the grill out about 3 inches..put your hand thru..it's driver side to the middle. original is grey box with connector. pull it out, reattach connector to new part and push the new piece in the hole..get the piece from the dealer..25.00...put screws back in grill brace. reset the temp by pressing front defrost, rear defrost and mode all at once. took me 15 minutes..and I'm a 55 year old girl:) you can do it!

Posted on Jun 23, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Where is the ambient temperature sensor located ?


images for 2008 Chevrolet HHR LT Where is the .

Outside Temperature Sensor - Chevy HHR Network

www.chevyhhr.net/forums/...hhr-4/outside-temperature-sensor-30594/
Jul 9, 2010 - I had the outside temp sensor go on my 99 Buick. I don't know where it islocated on the HHR, but it was just a plug in sensor. Take out the old, stick in the new.... 2008 HHR LS 2.2 L Auto Built: 12-19-2007. Bought: 4-26-2009 Location of the ambient engine temperature sensor.... Help ...
Mar 26, 2013
Engine Temperature Sensor
Oct 6, 2011
Outside Temp Display
Dec 19, 2008
Outside air temperature problem
Oct 30, 2007
More results from www.chevyhhr.net

Jan 25, 2016 | 2008 Chevrolet Chevrolet HHR LT

1 Answer

My outside air temp is reading at -40 on my 2008 Pontiac Torrent. What is the right sensor and where is it located?


Ambient Air Temperature Sensor (UH9)
At the front of the vehicle, at the lower left side of the front bumper bar
Ambient Air Temperature Sensor (UH9)
Pin
Wire
Circuit
Function
A
0.35 L-GN/BK
735
Ambient Air Temperature Sensor Signal
B
0.35 YE
61
Low Reference

Jul 22, 2015 | 2008 Pontiac Torrent

1 Answer

Ambient air sensor on 2005 Chrysler Town and Country showing -40


I would suspect the outise air temp sensor is defective, replace it. It is located in front of the AC condensor core.

Jul 19, 2012 | Cars & Trucks

2 Answers

On my 1996 ss impala what low side pressure should I see on the a/c with the system running


It all depends on the outside (ambient) air temperature. Your A/C low pressure switch is designed to turn the compressor off at 24 Psi. and turn it back on at 45 Psi. Most systems will normally run at between 25 and 40 Psi when the system is running on HIGH blower and "MAX" or "RECIRCULATE". A system that is fully charged may run at 25 Psi when the ambient temperature is 75 Deg. (F) and may run at 40 Psi when the ambient temperature is at 90 Deg. (F). (it can be even higher if ambient temperatures are higher than 90 Degrees.)

To properly diagnose a malfunctioning A/C system, the HIGH side pressure must also be checked. Restrictions in the system can make the low side pressure look normal while the high side pressure is high enough to blow hoses apart. (400+ Psi.)

Sep 04, 2011 | 1996 Chevrolet Impala SS

1 Answer

Outside temperature reading on my 2009 Chevy Silverado truck is always 4-8 degrees lower than the actual outside temperature.


the outside temperature sensor on vehicles takes the temperature of the air about 2-3 inches off the ground, that close to the ground it might be a couple degrees colder than the temperature on the thermometer you have mounted in the window of your house.

Feb 25, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

How do I reset the outside temperture gauge


you can't reset it. Try replacing the sensor.

SECTION 412-04: Control Components 2002 Explorer/Mountaineer Workshop Manual
REMOVAL AND INSTALLATION Ambient Air Temperature Sensor Removal and Installation
  1. Remove the radiator grille. For additional information, refer to Section 501-08 .
  1. Remove the three upper pin-type retainers in the radiator air deflector.
  1. Position forward the air deflector.
  1. Remove the ambient air temperature sensor.
    1. Detach the pin-type retainer.
    1. Disconnect the electrical connector.
    • Remove the ambient air temperature sensor.
58d06ea.gif

Nov 23, 2009 | 2002 Mercury Mountaineer

1 Answer

04 Tahoe AC blows hot air on drivers side but resets if restarted


A educated guess I would have to say there is a problem with HVAC control module ! electronics you know ! But that's not the way to do things ! There could be codes stored in the module. The Chevy dealer my have a reflash bulletin for this problem . Then can reflash , reprogram the control module ! The first place to start is checking for codes in the HVAC module.
The HVAC control module is a class 2 device that interfaces between the operator and the HVAC system to maintain air temperature and distribution settings. The battery positive voltage circuit provides power that the control module uses for keep alive memory (KAM). If the battery positive voltage circuit loses power, all HVAC DTCs and settings will be erased from KAM. The body control module (BCM), which is the vehicle mode master, provides a device on signal.
Air Temperature Sensors The air temperature sensors are a 2-wire negative temperature co-efficient thermistor. The vehicle uses the following air temperature sensors:
?€¢
Ambient Air Temperature Sensor

?€¢
Inside Air Temperature Sensor Assembly

?€¢
Inside Air Temperature Sensor Assembly-Auxiliary

?€¢
Upper Left Air Temperature Sensor

?€¢
Upper Right Air Temperature Sensor

?€¢
Lower Left Air Temperature Sensor

?€¢
Lower Right Air Temperature Sensor

?€¢
Upper Air Temperature Sensor-Auxiliary

?€¢
Lower Air Temperature Sensor-Auxiliary
A signal and low reference circuit enables the sensor to operate. As the air temperature surrounding the sensor increases, the sensor resistance decreases. The sensor signal voltage decreases as the resistance decreases. The sensor operates within a temperature range between -40?° to +101?°C (-40?° to +215?°F). The sensor signal varies between 0-5 volts.
The input of the duct air temperature sensors are different from the ambient and inside air temperature sensors. The HVAC control module converts the signal to a range between 0-255 counts. As the air temperature increases the count value will decrease.
If the HVAC control module or auxiliary HVAC control module detects a malfunctioning sensor, then the control module software will use a defaulted air temperature value. The default value for the ambient and inside air temperature sensors will be displayed on the scan tool. The default value for the duct air temperature sensors will not be displayed on the scan tool. The scan tool parameter for the duct air temperature sensors are the actual state of the signal circuit. The default action ensures that the HVAC system can adjust the inside air temperature near the desired temperature until the condition is corrected.
The ambient air temperature sensor mounts underhood and can be affected by city traffic, by idling, and by restarting a hot engine. Therefore, the HVAC control module filters the value of the ambient air temperature sensor for temperature display. The ambient air temperature value is updated under the following conditions: Or you can just buy a new control module an hope that it fixes it. $89.00 at www.partsgeek.com

Search from over 10 Million Auto Parts

Sep 18, 2009 | 2005 Chevrolet Silverado

2 Answers

Misreading outside temperature sensor on 2001 Audi A4


There are four sensors for ambient tempurature and they work in unison to provide information to the temp reading on the dash, the heater control head ( where to direct air, blending of warm/cold/outside/inside air flapper controls) depending on the ambient temp and the inside air temp sensor located just above the radio as well as the sun sensor on the top of the dash as well as the a/c compressor head.

When you start your car, the body control module takes the readings from all sensors, outside air temp located in front of the radiator, air temp sensor located in the airbox ( senses temp of air being drawn in from the outside into the air box), coolant temp, inside air temp sensor and the sun sensor on top of the dash (this is why it takes a few seconds for the climate control system to begine when you start the car). The intake air sensor is 1st priority, inside air second, coolant third, ambient 4th and sun 5th. For instance, if the sun sensor reads the sun is hot but the interior sensor reads cold, the inside akes priority. The goal is for the system to achieve a tempurature inside the car that matches the selected temp. It uses all of the sensors to set the system up to achieve that goal as quickly as possible.

Example; Its mid afternoon, sunny and 40 degrees outside adn your in stop and go traffic. The intake sensor reads 40 degrees, the outside sensor reads 60 degrees (heat from radiator...engine heat protrudes into cabin) and the sun sensor reads high (sun is strong). The system is set for 72. priority one sensor reads 40, inside sensor reads 65, ambient reads 60= system will blow hot air to the floor out put, dash outlets will lightly flow 65 degree air so the sun doesnt roast you yet your feet are cold(if it blew hot air from all outlets, your upper body would be hot but your legs/feet would be cold). as the interior sensor reaches desired temp, air will be distrubuted through thee dash, defrost and floor with the warmest air coming out the floor and defrost, coolest air out the dash vents. Its a complex system!

The two sensors that will screw the system up the most are the intake and interior sensors. the system will function reasonably well with just those two sensors though it wont blend air temps between outlets if the sun sensor isnt working. If the outside sensor fails, it simply uses the intake sensor, if the intake sensor fails it will rely on the front sensor. However, since the intake takes priority over the outside sensor, if the intake sensor sends incorrect resistance info rather than failing, it will take priority and cause the unit to malfunction such as in your case.

The intake air sensor can be changed from the outside with patience. If it where me, I would pay the two hrs labor and let the dealer do it right.

Kevin,
Kevins Small Engine service,
South Berwick ME. 03908

May 01, 2009 | 2001 Audi A4

2 Answers

Where is the ambient temp sensor located on a 2001 S40 Volvo?


Go to Matthew's Volvo Site and search under "ambient temp sensor" I posted detailed instructions and pictures of how to fix this. Enjoy

Apr 16, 2009 | 2001 Volvo S40

1 Answer

99 oldsmobile intrigue


The ambient temperature sensor going bad causes this exact problem. I've replaced many of them because when they show outside temp as being below 60 degrees, the A/C control module will shut the compressor off.

Aug 07, 2008 | 1999 Oldsmobile Intrigue

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

66 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

75117 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Randy Ohler

Level 3 Expert

14585 Answers

Are you a Car and Truck Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...