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1996 Pontiac Trans Am 5.7 L LT1, The motor temperature gauge goes to zero, intermittently Is there 2 sensor, one for the radiator fan and one for the dash gauge, or is it the same sensor?

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This usually happens when the gauge on the dash goes bad. It can be the sensor for the water temperature too mounted on the engine. The sensor for the fans will have nothing to do with the gauge

Posted on May 02, 2010

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Sensor on water pump is bad had same problem..either that or short in wireing

Posted on Jun 01, 2010

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Replaced head gaskets on pontiac trans am 1997 lt1 eng now its over heating


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Heat gauge goes way up,then by reeving motor it will go down.blows cold air


Check out related help links with solutions to troubleshoot the problem:---
Click the link below:---
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http://howtobyme.blogspot.in/2012/05/2004-toyota-tundra-oil-gauge-and-temp.html

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These details will help.
Thanks.

Nov 22, 2012 | 1997 Ford Taurus

1 Answer

2004 Impala ls temperature dash gauge


fans came late on those car,like 212 and second fan comes on at 224,you reprogram it to come a lot sooner,,other thing is there might be gunk inside the block,and coolant has hard time to pass through,and staying longer than enough in block temp goes high,even tough the radiator is doing it's job,it is just coming out block lot hotter than it suppose to be,and gauge read the block not the radiator

Apr 18, 2017 | 2004 Chevrolet Impala

2 Answers

Electric fans do not work. Fuses OK Motors also run if hooked up directly.


If the fans work when hooked up directly. this indicates that the fan motors are okay. The next step is to check if the coolant temperature sensor (usually located near the thermostat housing) to see if it sending a signal to the relay when the engine temperature goes above normal. This part is inexpensive and easily replaced; throw one in if you still have the original. A second sensor (or switch) may need to be checked; this is the radiator fan switch. These two usually work as a "team" in managing engine temperatures; one switch tells the computer and the instrument gauge what temperature your engine is operating in, while the other responds by sending a signal to the radiator fan relay to "kick on" the fan.

Lastly, the radiator fan relay itself may have burned out. I usually try to switch out identical relays to determine if this is the problem.


Hope this helps.


Have a Nice Day !!!

Apr 15, 2011 | 1996 Ford Windstar

1 Answer

97 transport 3.4 engine- New radiator, thermostat,temperature sensor, water pump and new low coolant level sensor. Temperature guage goes to 260 degrees but engine does not over heat. Bled air from cooling...


Check the operation of the cooling fans at the radiator. While idling disconnect the coolant temp sensor at the top left (drivers side) of the engine. It will be a 2 wire connector near the thermostat housing. When disconnected the coolant fans should come on immediately, if not you have an electrical issue with the relays or blown fuse. Check the fuses first in the underhood electrical panel. Next swap the cooling fan relay with an identical one next to it, if the fan works the relay is open.

Mar 30, 2011 | 1997 Pontiac Trans Sport

1 Answer

Temp. gauge doesn't work


That is the temperture control sensor to start the fans at the radiator. they have another sensor called the Engine Temperature Sensor.It is also located at the top of the engine.

Jan 17, 2009 | 1996 Pontiac Grand Am

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