Question about 1995 Jeep Wrangler

1 Answer

My temp gauge quit working and i replaced sender and gauge. it's got to be a short. but where to start maybe someone else has had the same problem

1995 yj

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jeep Master
  • 20,706 Answers

95 yj (quite means, hot , low or mid?,) just a clue.?
4.0L? all fuses good,?
the FSM covers this , here is the outline (all cars this era)

1: IR pyro gun pointed to thermotat housing near 180f 170f min.
2: ok engine really IS hot. then we ground the gauge feed, meter,
pegs, meter good , I use a light bulb from ground to guage to
limit current (im nice to my meters)
3: i then find my temp sender, the one with 1 pin.
pull the connector with a hot engine
this is a passive NTC thermistor and is not the ECT with 2 pins.
its just for the gauge.
the 91 sender is different from a 95 so dont mix years,!!
92-95 are matched.

hot engine, 180F or more...
pull off the single wire. to the sender.
connect DMM set to OHMS (yes, omega symbol i s that)
select 200 or 2000 range, id use 2000, , if an auto ranging meter
let it range and read the LCD markers, it tells you what range it landed red to pin, the black to engine block. (rear top sender on 4.0L)

its not the sender bad, all in 5min work. no guessing at all

so if its good, the wires are bad. twinxed them.

the only hard part is finding good ohms charts that match your year.
all else is caveman simple 1 wire, gauge and sender.

i see many folks online mixing wrong clusters in jeeps
and wondering why the right sender dont work.
so did you cluster temp ever work right, this year, this decade?
ohms law , never lies, but wrong parts do.... every time.


the sender is NTC, higher ohms cold, , lower hot !

i could not FIND the sender spec. at all.
1million hits for ETC, zero for gauge.

my guess is sender will read high ohms cold , 1000 or more. more cold more ohms... (resistance)
then drop in ohms as engine warms might drop to as low a 80 ohms.
but will drop , gauge wire (it only has 1) disconnected.





Posted on Dec 31, 2013

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

SOURCE: 1995 Jeep Cherokee Country 4x4

try a new radiator cap, it might old and not holding pressure

Posted on Sep 02, 2008

  • 5 Answers

SOURCE: 4wd problem jeep wrangler yj 1995

i just bought a used 97 CHEROKEE but i had the same problem, when i got to looking at it i found out the front driveshaft was shot, look at that, if its not it i would say its probably the transfer case especially with an older vehicle like that which is a very expenxive repair

Posted on Dec 21, 2008

SOURCE: fuel an temperature gauge quit working

There is a voltage regulator for the instruments, usually located on the back of the instrument panel. This may be kaput or it may just have corroded/loose connections. I would check this first.

Posted on May 08, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

With vehicle cold I put it in gear and go maybe 100' and temp gauge is topped out. When I stop the temp returns to normal in 3 seconds.


the temp gauge sends the power from the gauge to the sender unit which is a variable ground. That means that as the coolant heats up , the resistance in the sender is decreased and the current through the gage increases ans so the needle goes up
when that wire is shorting out some where the gauge will go to hot and when that short is removed the needle comes back down to cold
so that means that you will need to trace the wire along for where it is rubbed through or get an accredited auto electrician in to find the fault

May 11, 2016 | Cars & Trucks

1 Answer

I have a 2008 Chevy Colorado and today my temp


when a temp gauge drops to cold ,it indicates a problem in the cooling system
temp gauge sender units need water to activate the resistance that makes the gauge read so a falling gauge indicates no water around the sender unit --- air lock in the system--faulty wire connection to the gauge sender unit
the ac unit is not connected to the temp gauge so there may be another separate problem there
the temp sensor is an entirely different unit to the temp gauge sender unit and the short term working would be from an altered coolant level from changing that sensor --air lock in system
the temp sensor connects to the ECM to activate the fans and monitor engine operating temp so as to keep the air/fuel mixture exact for the engine conditions
the temp sender unit just makes the temp gauge read
a faulty thermostat will either be stuck open and the engine temp will take a long time to rise or it will be stuck closed and that will cause an overheat very quickly

Sep 11, 2014 | 2008 Chevrolet Colorado

1 Answer

Temp gaauge hot but car is cold,hard to start and idle problem?


check for the temp gauge sender unit wire is not shorting out on the engine . Replace the sender unit as it may have failed internally. Be sure get the temperature sender unit and not the temperature sensor unit which is a different unit all tegether.

Jul 30, 2014 | 2001 Mazda Protege

1 Answer

The temperature gauge goes up when car starts to HOT like its out of calibration. the engine is not overheating


check that the wire to the temp sender unit has not fallen off and is shorting out on the head/block. The power comes from the ignition switch through the gauge down to the sender unit and because the sender is a temperature controlled resistance unit the voltage is very low and so the gauge reads cold . as the temperature heats up , the resistance is decreased and so the voltage is increased though the gauge and the needle reads higher.. Hench if the gauge goes directly to hot on start up the wire is shorting out or the sender unit is faulty.

Mar 09, 2014 | Acura CL Cars & Trucks

2 Answers

I have an N13 1.6 litre Nissan Pulsar Hatch. I've just had the battery replaced and now the temperature gauge isn't working. Was working before. Nothing else was done. Any help would be appreciated.


Your temp sending unit off of your engine is either disconnected or faulty look into we're the wire leads into the sending unit it's usually were your upper radiator hose meets up with the block or were your thermostat housing is thanx Chris

Mar 04, 2014 | Cars & Trucks

1 Answer

2.2L Chevy Cavalier- temp gauge always redline, fan kicks on as soon as car starts but the car is not overheating. Temp sensor? Temp sending unit? Something else? Help!


check the that wire to the temp sender unit is not shorting out as it will read hot if it is remove the wire and if the gauge goes back to cold then replace the sender unit.

Jan 05, 2014 | Cars & Trucks

1 Answer

Replaced water pump thermostat temp sensor but temp gauge read all the way up when car is first started 3100 engine in 1996 monte carlo


For the temp gauge to read at full heat when the engine is cold is an indication of a short in the wire to the sender unit or you have connected the wrong wire to the sensor/sender unit.

Aug 17, 2013 | Chevrolet 2500 Cars & Trucks

1 Answer

My landcruiser 79 series ute over heated temp gauge went into red replaced pump belts filled up with new coolant but now the gauge just stays in red permanently even when u first start car from cold.


You should replace the temp guage sender unit. First disconnect wire from sender and with a test light connect one end to wire and one to earth turn ignition on and gauge should start at base and slowly work its way up. Faulty sender. If gauge still on full when disconnected from sender then gauge is either stuck and need replacing

Dec 10, 2012 | Toyota Land Cruiser Cars & Trucks

2 Answers

My temp gauge stays on hot but not over heating and the heater is blowing cold


you might have a defective sender unit (temperature) or faulty wiring to the same unit.Identify the sender unit and disconnect it whilst your ignition is on. Temp gauge must fall to cold.If it does, sender unit needs replacement and if it stays high your wiring to the sender unit is shorting with ground

Jan 28, 2012 | 1993 Chevrolet Corsica

2 Answers

Temp gauge stay on cold.


Switch ig. on, ground the sender unit wire for about 3 seconds see if the temp. gauge moves, if so change sender unit, if not then it is a faulty gauge reader.

Jan 15, 2009 | 2001 Chevrolet Impala

Not finding what you are looking for?
1995 Jeep Wrangler Logo

185 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8140 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...