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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

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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.

Posted on Dec 22, 2016

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Heat temp gauge on motor if faulty can it effect the cooling temp of the air conditioning


Not normally. If the heat temp GAUGE shows hot and the A/C blows warm you could actually be having a hot engine.situation. The heat GAUGE is controlled by the TEMP SENDER UNIT and has no connection with the A/C other than the A/C condenser rides in front of the radiator and catches all the debris first which can plug up the air flow to the radiator and cause the temp gauge to climb. If the A/C condenser is plugged by dirt and debris the Freon can't get cooled down enough to cool the cabin temp very well.
My suggestion would be to back wash the radiator and condenser. Use a high pressured garden hose and from the engine bay squirt the hose through the radiator and the condenser both to remove what you can't see. Be very careful not to bend the cooling fins of either the radiator or the condenser.

Dec 22, 2016 | Cars & Trucks

3 Answers

My 1996 honda accord doesnt heat up like it suppose to..unless its juss parked without any movement.. I drive it 2 miles away and it still doesnt heat up im concerned !! Any help ????


Thermostat stuck open?
Faulty temp sensor or gauge?
If heat comes out of the heater, engine thermostat is ok. That will isolate it to probably the temp sensor in the temp indication system (sensor & gauge).
The cooling system should be full. Temp sensors cannot read the engine temperature of steam or empty cooling galleries.

Dec 30, 2014 | Cars & Trucks

1 Answer

Why does noise happen when i'm driving, releasing steam, whistling, hissing


Your cooling system is not working properly. You should have this looked at immediately. Could be a stuck thermostat. Is your engine temp running hot?

Apr 16, 2012 | Saab 93 Cars & Trucks

3 Answers

What kind of refrigerant does a 93 oldsmobile achieva need? Am I able to recharge it with R134a?


Why do people guess, this is what you need
93-92 Olds Achieva All Eng. ....... R-12 42.00 oz Mineral 8.00 oz
Vacumm the system to remove all moister and air (this is a must), I have converted many systems that were R12, with out change anything but the PORTS to allow R134 to charge the system and had no problems, always use high and low gauges, and a temp gauge inside the cars vents, this allows you to see what temp the air is coming out of the vents.
Add enough freon to bring the high side up to 150 psi, this will activate the cooling fan, check the inside temp. add a little at a time till the inside temp drops below 60 degrees, I have been able to get R134 down to 36 degrees, it depends on the systems condition. test drive and be cool.
Good luck

Aug 10, 2010 | 1993 Oldsmobile Achieva

1 Answer

Describe your 2002 Astro van temperature gauge Problem. Gauge goes to redline quickly when idling for a few minutes; "Check Gauge" light comes on. When van turned off, OK within 3 minutes or less. Temp...


Check coolant level, and possibly replace thermostat. When a thermostat gets stuck in the closed position, coolant does not circulate thru motor. Gauge stays midrange when driving, because motor is being cooled by air and or the fan. If car seems to operate completely normal, then the gauge is faulty.

Apr 01, 2010 | 2002 Chevrolet Astro

1 Answer

I have a 2002 Mercury Sable 3.0. I noticed when


The clicking noise is the motor for the "blend door". The heater core and the air conditioning side share the same ducting. When you move the knob a small motor moves the door letting the respective hot or cool flow happen.
The heater core is probably blocked. The engineers at Ford have the coolant hoses bypassing the core with a WYE at the firewall. The coolant takes the path of least resistance and stops FLUSHING the heater core and it eventually clogs.

Oct 12, 2009 | 2001 Mercury Sable

3 Answers

2002 kia sportage temp gauge runs hot while driving


Cheak to see that the coolant fan is operating with the A/C turned on. The fan has to work to help the engine stay cool and help the A/C. When you apply heat on the control it acts to reduce the coolant temp. You will have to get the coolant fan operation checked. This can be :fan motor, fan relay, temp sensor and computer. Good luck

Apr 26, 2009 | 2002 Kia Sportage

1 Answer

Saab 93 convertible roof won't open


Your tonneau motor is probably bad, though reprogramming the limits may fix it. You will need the factory tool, unfortunately. There is a lot of information on this webpage. Be sure to read the information relating to updates on 1995 models.

Feb 22, 2009 | 1995 Saab 900

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