Question about 1996 Saturn SL

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I have a 1996 saturn l1 it 's over heating i have to keep the air on so the temp gage won't go hot could you tell me what sensor has a problem

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Its the thermostat

Posted on May 03, 2010


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Temp gauge pegged to far right all the time temp sensor is ok. How do i check the gauge in dash? It is on a 1999 gmc sonoma 2.2 engine.

What make , model an year vehicle ? Most newer vehicles ,from 1996 till now the temp sensor is an input to the PCM / ECM , the engine computer .The PCM / ECM sends temp. info to the instrument cluster on a serial data communication network , You would need a scan tool to test this ! Advanced scan tools have test installed , special tests called bi-directional tests . would be able to check gage with this test . Some year GM vehicles had problems with the stepper motor that moves the needle . Old temp. sensors wired directly to temp gage you could disconnect the sensor an ground the wire an see if the gage move to full hot .

Jan 10, 2016 | Cars & Trucks

3 Answers

My temperatur gauge shows hot when i turn on the ignition and two fans turns on right away can you tell me whats the prablem is?

Well it can be one of too things the gage or the temp sensor.
its most likely the sensor. The temp sensor is normally mounted with the thermostat housing which is on the top of the engine and has the top radiator hose going to it if you can't see it, try taking off the plastic covers. With the ignition on so all gages are reading go and unplug the sensor the gage should drop back strata way, this tells you that you have the wright sensor there are sometimes 2 one for the gage and the other for cold starting. There is a possibility that the problem may be coursed by a squashed or rubbed throw wire so if you can't make the gage return to cold by disconnecting the wires then start following the wires back along the engine.
I think you will find a faulty sensor is the cores of your problems and should be easy to pick up at any car part place.

May 09, 2014 | 2002 Chevrolet Impala

2 Answers

Gettin false reading on temp gage

If you unplug the temp sensor and the gauge still moves, look for a problem in the wiring harness or the cluster.

Jul 11, 2012 | 1996 Chevrolet Impala SS

1 Answer


Is it boiling over or do you have a bad temp gage. An easy check of the thermostat: When the engine is hot, does the heater put out heated air. If it does, then check the fan if it's electric. If it doesn't, change the thermostat.

Jun 22, 2012 | Lexus ES 300 Cars & Trucks

1 Answer

I have a 1996 monte carlo it runs hot on the gage has no heat but never smells hot or anything. Gage will peg out and kick hot light on then come ack down and keeps doing that. Any solutions?

No heat sounds like the heater core isn't circulating. Dropping down, sounds like the thermostat is sticking for a while than working. That can be checked by feeling the hose when the temp is up. If it is hard at the hose where the flow goes in; I would consider changing the thermostat. It can be a bad circulation problem killing the themostat though.

Mar 26, 2011 | Chevrolet Monte Carlo Cars & Trucks

1 Answer

Dodge neon 1996 heat gage goes to hot andthen

is it really because the engine is hot, sounds like a flaky guage of the temperature sensor under the hood is going bad

Jul 31, 2010 | 1996 Dodge Neon

1 Answer

I have a 1993 Acura Ledgend. For some reason my heater does not continue to blow hot air, it does for a few minutes and then begain to blow cold air. It does this often now. It works and then it blows cold...

first check to see that you coolant level is full, check it after the engine has cooled down,so there is no pressure in the system. otherwise you possibly have a head gasket in the early stage of failure

Nov 30, 2009 | 1993 Acura Legend

1 Answer

2000 Saturn SL2 this month I replaced radiator, water pump, thermastat and it keeps over heating. The temperature gauge does not raise past 1/4 (normal) the overflow container is full at a 50/50 mix. the...

first determine if the car is actualy getting hot.dont trust the gauge or fan for these are controled by a temp sensor, if the sensor went bad it will tell you its hot. the other thing it might be is a air bubble trapped in the system

Oct 04, 2009 | 1993 Saturn SL2

2 Answers

1996 saturn sl2 fan coming on late an over heating

Start with engine cool, & remove radiator cap. Check level in rad & fill to an inch or so from top of rad. Start car & turn heater on.(not defrost)
Now let it run until engine gets up to normal operating temperature & let it run until rad fan comes on & off, 2 or 3 times. Rev engine slightly every so often just to help disperse air in system faster. Fill rad as needed during this time. After you do that, and fan has come on & off 2 or 3 times, put rad cap back on & fill return bottle to proper mark, then see how it is.
I suspect it's just air in system & this should cure that . If not get back to me.

Jun 27, 2009 | Saturn SL2 Cars & Trucks

1 Answer

Coolant sensor

yes inexpensive and easy to change located on the engine block is a two wire sensor threaded into the water jacket, you should also check to see if your heater hoses (both) are hot after 20 min of idling if they are cold you should check your coolant and the lower radiator hose to see if its cold as well if so you thermostat need to be replaced, as for the ac may need a charge ?does this truck have electronic climate control? also how does the temp gage on the dash read while driving ? please rate -jeff

Aug 28, 2008 | 1996 Jeep Grand Cherokee

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