Question about 2002 Jeep Wrangler

1 Answer

Jeep Wrangler 2001 No heat or Temperature on gauge

The heater doesn't work and the temperature gauge reflects nothing. Does the thermostat need to be replace?

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert whose answer gotĀ voted for 20 times.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 74 Answers

See i you have any codes may be a temp sensor if you dont have a code reader you can still get the codes by putting key in ignition turning it on but not starting it 3 times after the third time the engine light will blink a series of times like morse code. be perpared to jot down the number of blinks the ligh gives of there should be a slight paulse between codes, there also is usually a start and end code thsi may take a few time to get it ..once you have the numbers you can google the code and find the problem googleex (Jeep trouble code 55) you can use this trick on any chrysler car from 80 on up possibly earlier.

Posted on Nov 21, 2008


1 Suggested Answer

  • 2 Answers

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

a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

Temperature gauge on max,very little heat coming thorough heater system

check your heater core and your thermostat. your thermostat first.

Feb 18, 2015 | 2005 Mini Cooper

2 Answers

1998 Jeep Wrangler. When I try to use heater, plenty of air comes out of vents, but not hot air...A radiator specialist said there was no problem with the heater core. What could this be?


Sep 14, 2011 | 1998 Jeep Wrangler

1 Answer

I have a 1999 Jeep wrangler and I have installed a new thermostat (150 degree) and a new radiator cap; however, I do not get much heat. The heat gauge seems to show the temperature at about 155 (never any...

its inside the heater box and need the whole dash taking out ,pull the two feed pipes off the heater and flush with a garden hose reversing direction of flow ,refill with antifreeze 100% neat ,then if still no joy put a piece of cardboard in front of rad to reduce the cold air flow through teh rad and engine compartment this should do the trick. dont beleave me watch ice road truckers and see what they do to their trucks to keep the temperature up .

Dec 19, 2010 | Jeep TJ Cars & Trucks

2 Answers

No Heat 2001 Wrangler

you have a faulty thermostat in your jeep. the thermostat is on the engine where the top cooling hose attaches to the motor. it will look like a small valve type thing with a spring that holds the brass part against the steel. if you are replacing this yourself than you will want a 195 thermostat.

Jan 10, 2010 | 2001 Jeep Wrangler

1 Answer

Proper operating temperature on 2004 Jeep Wrangler, Unlimited

The thermostat controls operating temperature. This occurs at a preset temperature (typically 195 degrees F. or so), which is usually stamped on the thermostat itself. The thermostat should be fully open about 20 degrees F. above the rated temperature. So your operating temperature is about right. If you have doubts, just replace the thermostat with a new one of the correct temp.

Sep 28, 2009 | 2007 Jeep Wrangler Unlimited Rubicon 2...

1 Answer

Tried all the solutions posted about my 2002 jeep wrangler 4.0 liter over heating.Nothing has worked. How do you check to see if water pump is working,it looks to me like the coolant is not moving

If you haven't aleady, I'd replace the rad cap too.As far as the flow goes, It's usually easy to see big flow increase in rad when thermostat opens at about 190F-210F. If your not seeing an increased flow when gauge at normal operating temperature, then yes, water pump would be next. With that said, a compression or cooling system pressure test may be needed to rule out head gasket too. Does it appear to be losing/using coolant or just heating up? If it is losing coolant, then headgasket may be the problem. Let's hope that confirming good flow or no flow in rad, by visual, will answer your question.

Mar 08, 2009 | 2002 Jeep Wrangler

1 Answer

1993 Jeep Wrangler heater/temperture gauge

if you are not showing a temp. reading ,you may need to replace the thermostat. as far as the draft goes your vent is probably stuck open. i also have a '93 with the same issue. i could not adjust the cable enough to close the vent so i removed the grill on the cowl in front of the windshield, the vent door is down and toward the left side (drivers side).if you can not push it closed to stay,i used a large piece of foam placed inside a plastic bag to block it. it has worked fine for almost 5 years.

Jan 15, 2009 | 1993 Jeep Wrangler

1 Answer

1992 Jeep Wrangler heater not blowing hot air

How often has the coolant been changed? My only guess is that it hasn't and the hoses and the heater core are plugged up with goo and a flush is needed

Dec 05, 2008 | 1992 Jeep Wrangler

1 Answer


the temperature sensor is it connect its close to the thermostat check that out cheers pierre

Jun 29, 2008 | 1995 Jeep Wrangler

Not finding what you are looking for?
2002 Jeep Wrangler Logo

208 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

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

Answer questions

Manuals & User Guides