Question about 2000 Pontiac Montana

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My 3.1 Monte wont start.

I hooked a wire from the temp control sensor to the fuse box on fender to try and get the temp guage to work . Now the car quit and when you back up it quits. very hard to start and misses

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  • johnson_emma Jan 24, 2009

    this posted as a montana, but its actually a monte carlos



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These sensors are sensitive, no way should they be hot wired like that,when any sensor goes bad it needs replacing. you probably blew something else. My advise, would be, to take it to a garage and have it tested, starting with the computor. good luck.

Posted on Jan 24, 2009


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Most General Motors vehicles have a specific fuse in the fuse box for the "instruments".
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2006 monte carlo has not power at all

If the fuses are ok, then check all main relays, then I would say its the ignition switch, if no power to anything. The ignition switch supplies and controls about 50 percent of your vehicle's total power needs. Its worth a try.

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1 Answer

Temperature gauge stops working

Sounds like you got a broken wire or faulty connection somewhere. am I to assume "replaced everything" includes the temperature sensor? what about the wiring behind the guage - have you done any other work in this area recently (around time of the startt to this problem) like say replaced audio system or other which may have broke or loosened the wires on the guage?
Best regards

Jul 17, 2012 | 2001 Chevrolet Monte Carlo

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Temperature guage has erratic reading everytime I start up. Hot Or Cold it does not matter. I replaced the Temp sensor with a new one. Still behaves as before.

There are two pieces on your car for temp related functions. There is a temp sensor which you replaced but there is also a colling temp switch. The sensor feends the ecm and works with the fuel system. It does not control the guage. The switch is what controls the guage. Thats what you need to replace. In the even your car is one of the rare one that only uses one sensor then you need to check the wires going to and comming from the sensor. You will probably find a loose or corroded connection somewhere in the line.

Mar 09, 2010 | 1989 Chevrolet Camaro

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1998 ford mustang radiator cooing fan wont come on

Check the fluid level in the radiator - after it cools down !

It sounds like you should replace the temperature sensor that controls the fan. This is usually located in the radiator and has electrical wires connected to it. Trace the wires from the radiator fan ( not the air conditioner fan!) to the sensor.

If the radiator is aluminum you may need special anti-freeze to prevent damage.

Apr 08, 2009 | 1998 Ford Mustang

2 Answers

I broke the car

by hotwiring the sensor, it is likely that you damaged it. Hopefully, the damage is isolated to that component and has not traveled into the computer or the gauge head itself. First I would change the sending unit, then start tracing the wiring back to determine what actually was wrong. You may get lucky and just changing the unit may fix the problem. To trace wiring, get a good manual with good diagrams. Also, have someone put a code reader on it to see if any codes are present that may be helpful (but remember, you may have set a code by doing what you did as well)

Jan 24, 2009 | 2000 Pontiac Montana

1 Answer


There is 1 Relay Switch and a Fuse that Operates this Guage Also. Check in the Fuse Boxes for these first.

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