Question about 2004 Saab 9-3

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On a Saab 9.3 Aero -the external Temp sensor has started to misread - outside temp reads 43 C - it is 1C Any simple rest solution?

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Need to find the external temperature sensor on my SAAB 9-3 aero 2004. Can you help me locate it so that I can buy a new one ?


it should be behind the front front bumper liner/lower vent area. a new part is best purchased from a saab dealer. hope this helps

Jan 14, 2017 | 2004 Saab 9-3

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Heat temp gauge on motor if faulty can it effect the cooling temp of the air conditioning on a saab 93 convertible 2002 model


No. The engine temp sensor affects engine idle speed, and timing. There is an in car temp sensor that controls the position of the blend door and the fan speed if the system has automatic temperature control.It also cycles the AC compressor clutch and the radiator cooling fans.

Dec 22, 2016 | 2002 Saab 9-5

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No check engine light, occasional temp guage malfunction, and it wont start after i have already replaced the fuel filter spark plugs ignition pack and crank shaft sensor. why wont my 2001 saab 9-3 viggen...


still could have a fault in crank sensor wiring ,,, you need to plug in diagnostic tool when it wont start and see if you have a engine revs reading ,,, also check if fuel is getting to the engine ,,,, that car also has immobiliser so try spare key to see if problem goes away ,,,,,, wont get codes on that age group unless problem happens when driveing

Dec 01, 2013 | 2001 Saab 9-3

1 Answer

Where is the outside temp sensor located


OUTSIDE TEMPERATURE LOCATED JUST BEHIND THE FRONT GRILLE AND IN FRONT OF THE RADIATOR..

Jul 01, 2011 | 2003 Saab 9-3

1 Answer

Outside temperature display is widely inaccurate.


Change heater output temperature sensor.That is a SAAB dealer job.

Apr 22, 2010 | Saab 9 5 Cars & Trucks

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My saab 9-5 wagon wont start


water temp switch faulty.

Jul 04, 2009 | 2000 Saab 9-3 Viggen

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

1 Answer

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

Mar 31, 2009 | 2006 Chevrolet Impala

2 Answers

Gauges misreading bigtime


instrument cluster and buy and extra per gm quality

Dec 24, 2008 | 2003 Chevrolet Cavalier

3 Answers

Fault with saab 9-3 aero


Hello I have a saab 9.3 SS 04 and had the same problem.

- intermittent wipe doesn't work, at all
- windscreen washers don't work, at all
- "normal" continuous, and fast wipe work, but the wipers
freeze in the middle of the windscreen if you let go of the
control stalk, rather than sweeping back to the resting position
- same "freeze" happens with the manual wipe (push down on the control stalk)

The weird thing is that, this morning, for about 10 minutes, it seemed to fix itself,
partially - the washers started working etc - but the intermittent wipe still didn't work. However not long after that it went back to the symptoms described above.
also if I unplugged my car battery for a minute the washers worked for several seconds but again same problem occurs.

Solution is to replace your wiper motor. its that "simple"
worked for me. The wiper motor has a lot of electronic stuff and seems to control the washer engine.
Good luck.

Jun 22, 2008 | 2004 Saab 9-3

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