Question about 1999 Jeep Cherokee

1 Answer

Windsheild doesn't defrost completly, has hot air, doesnt do the job

Blower seems to be working, hot air feels forceful but doesn't clear any higher than about 6 inches and not on the sides.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 42 Answers

Heater core leak

Posted on Oct 29, 2012

5 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

tripletauto
  • 1450 Answers

SOURCE: Blower not blowing

can you hear the fan working on all speeds?

Posted on Sep 22, 2008

motor1258
  • 6674 Answers

SOURCE: The blower for the air condition & defrost is not working

You'll need to check all fuses under dash as well as under hood in fuse/relay box, as one may be blown. Then get back to us if you check them all & are good but still have problem.

Posted on Aug 24, 2009

toneman2121
  • 775 Answers

SOURCE: A/c Heat Fan in 1995 Jeep Cherokee doesnt work. I

there is a blower motor resistor that cuts the voltage for the different fan speeds. this is most likely the culprit. check autozone.com, you can get access to location and wiring diagrams to be more familiar with it. you have to register and it's free. the switch or wiring might also be bad, when in the high position, the switch effectively bypasses any resistor. although the voltage still runs through the assembley. a repair manual is you best option

Posted on Feb 26, 2010

tecnovative
  • 360 Answers

SOURCE: My 1999 Jeep cherokee sport

Hi, my name is John I will do my best to assist you.

Based on your description here are my thoughts.

  1. Even if your existing thermostat is good, installing one that opens at a higher temperature, for example 195* instead of 192*, will allow the engine coolant to heat up 3* more. This may make enough of a difference in the heater core temperature to make you comfortable.
  2. As I'm sure you're aware hot air rises, so even when you use the floor vents, that warm air doesn't stay at your feet long enough to be of much benefit in extremely cold climates like in KS.
  3. Since you have air movement in all of the various flow modes, I doubt that there are any flow problems in the plenum, or duct system.
  4. Even though your friend flushed the cooling system, there could still be blockage in the heater core. If so replacing the core may be necessary.
This is my advice.

  • Try a 195* thermostat, replacing it is typically simple, and inexpensive. It could make the difference.
  • If you're still not comfortable after replacing the thermostat, consider replacing the heater core.
  • Make sure that your radiator fan isn't running constantly. If the coolant temp sensor is faulty it may be causing the fan to run more than needed resulting in the engine running cooler than it needs to for your climate.
If you have more specific questions please post comments to this thread and I will endeavor to monitor new activity and respond as soon as possible. I recommend that you "bookmark", or "add to favorites" this page for your convenience.

Posted on Feb 15, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Air control wont go to full vent


there is a thin plastic air line running from engine compartment through fire wall into the dash check to see if it is cracked in the engine department over the years they get hard a crack letting some air get through but not enough to change vent settings

Sep 19, 2012 | 1999 Chevrolet Silverado 1500

2 Answers

My a/c (heater & Defrost) doesn't always work, could it be a fuse or the fan blower?


Check whether you might have bad connection or contact,or e ven bad switch.

Sep 03, 2012 | 2005 Kia Spectra

1 Answer

2002 Merc Sable wont blow air


I'd have to say it's the blower motor. Does it blow hot air when the heater is on?

Aug 07, 2012 | 2002 Mercury Sable

1 Answer

A/c blower doesn't blow very hard


Sometimes, over a period of time,things or dirt and dust have accumujlated on dash and eventually gets blown down the defroster ducts and builds up on ac evaporator while there is moisture on it and the combonation of the two plugs up the evaporator causing a huge lack of air flow at vents.The combination of the two can cause almost cement making it very hard to clean up.I have actually had to replace quite a few evaporators because of the time consuming clean ups.

Aug 06, 2012 | 2004 Dodge Ram 1500

1 Answer

Air flow issue- intermittently blows from wrong vents


This is a common problem on this site.
In your case I would look for a vac leak or a sticky blend door.
Since the direction of air flow changes when you are accelerating, I'm going to guess the blend door or doors are controlled by engine vacuum. There may be a vac leak between the dash and the engine, or the blend door may not be able to move back and forth correctly.
Defrost is the default position when a problem occurs, to make sure the windshield is clear of fog or frost.

Jul 19, 2012 | 2005 Mazda Tribute

1 Answer

Have an '86 F250 v8 460 engine. Defrost problem, when it is cold and I run the defroster it produces a haze on the glass and the smell of antifreeze fills the cab. I can see at the bottom of the w


You will need to replace the heater core. It obviously has a small crack or hole in it and that is where the steam on your windsheild and the smell of antifreeze is coming from.

Feb 06, 2012 | Cars & Trucks

1 Answer

The blower for the air condition & defrost is not working


You'll need to check all fuses under dash as well as under hood in fuse/relay box, as one may be blown. Then get back to us if you check them all & are good but still have problem.

Aug 24, 2009 | 1999 Jeep Grand Cherokee

1 Answer

98 transport de frost blower seems weak


COULD BE THE FAN SPEED SWITCH. IF IT RUNS ON ONE SPEED ONLY THE SWITCH IS MORE THAN LIKELY BAD.

Jan 16, 2009 | 2002 Pontiac Montana

Not finding what you are looking for?
1999 Jeep Cherokee Logo

81 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 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

Loading...