Question about 1989 Jeep Cherokee

1 Answer

1989 jeep yj no heat

Blower works fine,changed thermostat, checked airflow control operating fine.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 475 Answers

Under the hood on the pass. side firewall are two heater hose lines. Start the car and let it get at normal operating temp. One of the hoses is the "in" to the heater core, if you touch it it should be hot. The other hose is the "out" of the heater core, this hose should be warm and not really hot like the "in" hose. If the hose going in is hot and the other cold, then your heater core is clogged. There is a valve connected inline with one of the heater hoses, this is the heater control vavle.
If the valve does not open, you will not have any heat either.

Posted on Dec 10, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

1999 isuzu amigo heat works sometimes and not others


Check engine temperature, fan operation and thermostat.
Also check inside blower operation. If intermittent, then check and/or change the blower motor.

Nov 18, 2012 | 1998 Isuzu Rodeo

2 Answers

HAVE FLUSHED THE SYSTEM AND INSTALLED A NEW THERMOSTAT. BLOWER WORKS FINE BUT VERY LITTLE HEAT. COOLANT LEVEL APPROPRIATE.


check water pump working and no leaks..might be vacuum line not opening the flapper door or heater core, or heater control valve

Jan 20, 2011 | 1989 Buick Century

1 Answer

MY 1991 JEEP WRANGLER CARS HEATER DOESNT WORK


If the blower works check for coolant in the cooling system. Test operation of thermostat. Check heater control valve for proper operation if equipped. Pressure test cooling system to ensure system holds pressure (this will help you identify a leak, if any. If car does not over heat and cooling system is in good working order, then the heater core is clogged.
If the blower does not work Check fuse, relay, wiring for short to ground, apply direct battery voltage to blower motor. If blower motor turns on and fuse/relay and wiring are ok replace the switch.

Dec 14, 2010 | 1991 Jeep Wrangler

2 Answers

95 Jeep Wrangler YJ...No heat, temp at about


It should be 200 degrees. If your running cold the only thing that regulates temp is the thermostat. If it is indeed 150 degrees thats why you have no heat.

If you replaced the water pump and the radiator for this condition then it was a waste of money. If you had a water pump or radiator problem it would overheat.

The fact that your blowing cold air tells me the that you really are 150 degrees or the heater core is plugged.

Mar 10, 2010 | 1995 Jeep Wrangler

1 Answer

Jeep cherokee Heater blower problem


Its not the switch or the controller in the instrument cluster. On my jeep there was a panel on the passenger side under the dash board. It helped me find it by turning on the heater and going toward the sound of the blower. On the backside of the panel was a series of little coils that control the different speeds. one of those coils had been broken.

Feb 20, 2010 | 1989 Jeep Cherokee

1 Answer

1989 Buick Park Ave heating problems. I got this car a few months ago and it was great,...now having problems. The heating/AC control unit works fine, there was however a toggle switch controling the...


check to see if there is a resistor on the blower motor. it should be located either beside or underneath the blower motor.. if that is bad it wont let you select different fan speed settings and if it goes completely out the blower will not work at all.

Feb 12, 2010 | 1989 Buick Park Avenue

2 Answers

My 89 Jeep YJ manual will not go in to reverse while running


Problem is likely either a worn shift fork or bad synchro (both inside the transmission) It's unlikely that you have a clutch problem otherwise the problem would be with first and reverse and shifting other gears would also be difficult.

Sep 01, 2009 | 1989 Jeep Wrangler

1 Answer

Ac blower motor


Check fuse supplying fan is not blown,
Check blower control switch is operating OK,
Check relay controlling fan is operating OK,
Check variable speed resistor pack is not faulty (the resistor pack is usually located in the blower ducting, in the blower airflow),
Check blower motor ground connection is not missing.

Aug 12, 2009 | 2000 Mercury Grand Marquis

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

362 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

Level 3 Expert

60867 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

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

Answer questions

Manuals & User Guides

Loading...