Question about 1998 Cadillac DeVille

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Temp sensor How can I check if my coolant temp sensor is actually working? Can I stick a wire on both sides of the pig tail to see if it turns on?

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Buy a temp gauge from a breakers yard and connect

Posted on Oct 16, 2013

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Posted on Jan 02, 2017

ZJLimited
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What unit sensor or component are connected to this pigtail ?

Posted on Mar 22, 2010

  • 1857 Answers

SOURCE: i need to know which

forget about colors or numbers. The wires just have to end up in the same location if your splicing it in.

Posted on Mar 22, 2010

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Location of radiator fan fuse or fuse link ? Fan doesn't work.


Both should be a fuse under the hood, or under the dash, if there is a fuse link, it will be along the hot side of the wiring on the fan leading into source of power.

May 22, 2016 | Cars & Trucks

1 Answer

2002 FORD FOCUS NEW YAW RATE SENSOR WIREING DIOGRAM FOR 6 WIRE PIG TAIL


They gave you the wrong one. If it didn't come with a new plug to wire to the car. The one you got won't work. Even if you hard wire it.

Dec 30, 2015 | Ford Cars & Trucks

1 Answer

Primary cooling fan only comes on when i turn ac on


You would need a scanner and an inferred temp sensor to troubleshoot the system.
You need to know what the actual engine temp is, and what the temp sensor is telling the computer.
If and when the engine reaches 220 degrees, the engine temp sensor should be sending that data to the computer and it should ground the fan relay to activate it.
Unplugging the sensor and having the fan run tells you the sensor is connected, and there should have been a trouble code set at that time.
It is possible the coolant level is low, or something else preventing the temp sensor sending the correct data.

Apr 16, 2013 | 2002 Chevrolet Malibu

2 Answers

Hey,I have an 03 chevy s10,I recently tried putting a pig tail on it (straight wired) and had no luck,gave up and crimped all the wire back together,and today a guy at work noticed I had no taillights,but...


I would check your tail light fuse first then test the brown wire in the tail light harness where you origionally cut into it. With the lights on there should be around 12v on it. if not you may have pulled the wire too hard and broke it upstream. Test to see if there is 12v at the fuse ad if there is, your trouble should be in the wire between the fuse and the spot where you cut into it.

Mar 25, 2013 | Cars & Trucks

1 Answer

03 Town & country cooling fans don't work even afler replacing relay. They'll work when relay plug is jumpered. Phil L


if they work when jumping the relay then all wiring from the relay to fans is good.have you checked all the fuses on the car(both under dash drivers side and under hood).if they work then its possible that the coolant sensor may not be sensing the coolant temp as hot as it is(showing the computer that it is at a lower temp)then it actually is.which would suggest a defective coolant temperature sensor and no this sensor does not always set a code.

Mar 24, 2011 | Chrysler Town and Country Cars & Trucks

1 Answer

I was wiring a trailer pigtail to an 06 wrangler and blew the turn signal bulbs but the fuses are good. I have running and reverse lights but no brake lights or turn signals


If the bulbs and the fuses are good, check the brake light switch. You might of shorted out the switch when working on the pig tail. Always use a test light or volt meter when installing pig tails. This way you can check for power and ground before hooking a wire up to help prevent shorts. But by what you have said it does sound as if the brake light switch is now bad.

Jun 27, 2010 | 2006 Jeep Wrangler

3 Answers

Air conditioner problem


Sounds like a problem with the censor or a bad pig tail, try unplugging the pig tail and sticking a paper clip in both sides and then turn the ac on, that will tell you which it is

Jun 17, 2010 | 1992 GMC Sierra

1 Answer

Coolant fans are not running. unplugged coolant


Check out coolant temp sensor ,its wiring and condition of coolant all together they control that circuit.
Then make sure ECU is getting Temp sensor signal and is sending it to the relay accordingly. ( which in your case is probably not the problem because the fans went on when you removed and accidently grounded coolant sensor wiring) Only one thing left Good luck

Mar 24, 2010 | 2001 Chevrolet Venture

2 Answers

Coolant sensor on a saturn, can you show location?


well there are 2 coolant sensors,,,one is the coolant level sensor which is internal to the coolant resivor,,but i think you are talking about the infamous engine coolant temp sensor,,,,ok pop your hood you will see the cam cover that says saturn on it,,,,thats the top of the engine,,,ok,,,then on the lower right side of that you will see the upper radiator hose,,,and the EGR valve,,,,now inbetween the egr valve and upper rad hose is where the coolant temp sensor is,, its just below them,,there is a little wiring harness with a yellow and a black wire going to it,,,,it actually screws into the lower side of the cylinder head,,,,just squeze the wiring connector at the 2 thicker spots and pull it straight off then take the coolant cap off the resivor,,to relases pressure and put it back on,providing the car is not hot,,,,the sensor is actually a 13mm or 14mm socket that removes the sensor,,,,,they usually crack and leak into the harness so check the harness for corrosion,,,,be like green/blue on terminals,,if so youre gonna have to wire in a new connector,,,,no big deal ,, normal s-series issue,,,do not use aftermarket junk like autozone as these do not read correctly from the start youre gonna have to shell out the money at the saturn dealer for the good stuff ,,like $18 for the sensoe and $37 for the connector but it comes with the 2 **** connectors you need to wire it in,,,so if you remove the sensor just put the new one in snug but dont break it off,,,,top off coolant,,,,cut the 2 wires off the old connector as close to the end as possilbe. so you retain as much wire as you can,,,,,it doesnt matter which wire goes on what side but i lke to keep it the way it was the black wire on the right and the yellow on the left,,use the **** connectors,then heat shrink them and wrap them with electrical tape and youre done

Oct 25, 2009 | 1999 Saturn SL

2 Answers

1996 grand cherokee limeted,engine coolant sensor bad,have replace a new sensor,but the problems ar still there.


they have a problem with the connectors .you will have to buy a new pig tail connector this should fix the problem by the way what is the code number?

May 31, 2009 | 1996 Jeep Grand Cherokee

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