Question about 1996 Jeep Cherokee

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Ambient outside air temp sensor

Outside temp shows normal at vehicle start up. If left idle when at operating temp outside air temp shows 113 F. Jeep is not running hot and both fans are working

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  • 54 Answers

I may be wrong but that sensor is for the ac not for engine operation and at 113 if its not that hot then the sensor is bad but if its summer its ok,, your engine works with intake air temp

Posted on Nov 25, 2013

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Posted on Jan 02, 2017

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SOURCE: Won't start when hot.

may be a bad ignition module(mounted on firewall) or a failing coil

Posted on May 28, 2009

  • 1 Answer

SOURCE: Heater blows cold air

If the "Heater In Hose" gets hot, and the "Heater Out Hose" does not get hot, than either the Control Valve is sticking closed, or your heater core is plugged up with ****!

Have you used "Barrs Leak" or a simular product for a radiator leak? That will sometimes clog the heater core.

I have a 1993 Grand Cherokee, which "Normally" throws very hot air out of the heater, but lately sometimes it only throws warm air, till I make my first stop, than it gets hot.....all because the heat control valve is hanging up.

Low water in the radiator will also cause a heater to not work.....if the water level is too low to circulate to the heater.

XRM

Posted on Feb 18, 2009

  • 2 Answers

SOURCE: Heat not working

If jeep is a limited model it has automatic temp control for the heater blend door, it is controled by a electric motor, and can be problematic with age,sometimes it makes a clicking noise when the blend door is stiff ,which then it must be lubed and freed up

Posted on Mar 08, 2009

  • 323 Answers

SOURCE: clutch won't engage on air conditioning compressor

The air gap may be too wide between the clutch disc and plate. It usually happens from wear. You can test this possibility by engaging the clutch electrically as you have done and then push on the disc slightly with the handle of a hammer or screwdriver. Be careful not to get your hand or fingers too close while the engine is running. Basically you are helping the magnetic field pull the disc in. I hope this helps.

Posted on Aug 19, 2009

  • 4044 Answers

SOURCE: Here is my problem... 1998 Jeep Cherokee Sport 4.0

Sounds like you have done all but 2 things to treat this. Double check the wiring to any loose connections or breaks. If good replace the electric fan itself. Because of the nature of electric fans most are not engaged when the vehicle is moving but should kick in when it is sitting engine on even if the AC is not running. The AC control actually provides extra voltage to the fan to run at a higher speed. It sounds like you have lost one of the speeds to your fan.

Posted on Aug 27, 2009

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I have mits triton nov 2009 4x4 the ambient p0072 makes the eng light come on but it does not have that sensor so I need to know if any knows the colour so I can check wiring thanks


code p 0072 refers to outside air temp sensor ( ambient temp sensor--low input===causes ---wiring short to ground, outside air temp sensor ---ECM
thee has to be an ambient temp sensor as that reports the temp to the ECM to adjust the air/fuel settings for cold starts
it could be in the MAF/VAF sensor area

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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

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06 rendezvous that the digital temp display for outside temp is wrong. The display reads 32 degree and it is actually 80 degrees so the A/C does not cool vehicle down. What is the problem?


Suspect a failure in the ambient air temp sensor. Has the vehicle ever been in a frontal collision? This sensor is normally located in front of the radiator assembly bolted to the rad support. If it is reading a cold temperature, it will not allow the AC to operate

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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

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I turn on ignition and vehicle starts to idle real high seems like accelarator cable is sticking


Hi Clucas, If you're talking about a cold engine, the vehicle is fitted with an automatic 'up idle' system. Depending on how cold the ambient temperature is. The colder it is outside the higher the idle, until the engine reaches normal operating temp. The engine should then settle down to the correct idle speed. If however the cold start raises the speed to more than 1350, have a scan carried out. If the idle speed is always at a high rpm, do the same.A leakage of air into the intake manifold can also cause the latter problem. A leakage however will not be evident via a scan. Regards Johngee10

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Air conditioner will not come on. The tempeture gage is reading -40. The sensor is not reading properly.


Hi ruswashingto,

The air conditioner may not work properly if your ambient temp is reading -40. The a/c control unit monitors ambient temp so that it does not operate at too low outside temps. I would recommend fixing the ambient temp sensor and rechecking your a/c operation.

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Air temp indicator only reads temps below 50 degrees


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Engine idles rough for 90 seconds after restart when hot


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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.

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