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1988 jeep wrangler heater blower motor doesn't work

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  • Jeep Master
  • 20,706 Answers

On high ?
bad fuses
Hi works, and others speeds dont, bad switch or blower resistor bad.
hot wire the blower motor , does it work now. bingo, bad controls.

Posted on May 11, 2014

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6ya6ya
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Posted on Jan 02, 2017

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short shadey
  • 421 Answers

SOURCE: 1988 jeep wrangler no fuel

check your fuel pump relay and your ignition switch those numbers you gave for voltage are not right, please recheck that you have a ground and 12volts at the pump while cranking please rate -jeff

Posted on Sep 04, 2008

  • 508 Answers

SOURCE: how to install heater blower

This is an easy solution. Remove the glove box door strap and remove the glove box door by letting it drop towards the floor while supporting the door and it will release from the dash. Then you will see the blower motor housing along the firewall on the interior. You will just need to unplug the wires to the motor and remove a few screws and carefully remove the motor with the blower cage attached to it. Then just reverse the process and you will be good.

Posted on Feb 07, 2009

lebones337
  • 152 Answers

SOURCE: VACUUM HOSE DIAGRAM FOR 1988 JEEP WRANGLER 4.2 I6?

here is a link with all the vacum diagrams for your jeep. hope it helps.
http://www.autozone.com/addVehicleId,1076002/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c1528008ab9d

Posted on Feb 12, 2009

motor1258
  • 6674 Answers

SOURCE: heater blower switch only works on high

I'd replace blower resistor, usually found under hood on firewall on passenger side, or on duct work, inside under dash on passenger side,close to blower motor.

Posted on Jun 01, 2009

Obertelli
  • 3006 Answers

SOURCE: i have a 1999 Jeep Wrangler and the heater fan

If you bypass the resistor pack and connect the motor directly to the fused 12v supply then the fan should run at maximum speed. If so, it's the resistor pack that's blown: a very common fault on a huge number of makes and models.

Posted on Feb 13, 2010

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1 Answer

How to change heater core on 1988 jeep wrangler


old car. with A/C or with out. we cant guess this..
log in to alldata. com and read?
  1. drain coolant,
  2. remove housing
  3. remove core. (easy but what is step 2)

housing. no A/C
step 2. expanded.
  1. Disconnect the heater hoses at the engine side of the firewall.
  2. Detach the heater control cables.
  3. Disconnect the motor wiring.
  4. Detach the water drain hose and the defroster hose.
  5. Remove the nuts from the studs in the engine compartment.
  6. Tilt the heater housing assembly down and pull it back toward the inside of the vehicle.
  7. Remove the attaching screws and the blower motor.

alldata.com covers this , with nice photos. why not just login and read.

Oct 01, 2014 | 1988 Jeep Wrangler

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

1 Answer

Replace the heater blower motor resistor in 2000 Jeep Wrangler Sport. Having trouble finding the resistor...do I take off more than the glove compartment door / box?


if its in the way yes...But the resistor is usually mounted within the blower motor box. Wires powering up the blower motor is coming from the resistor. Follow those lines!!

Dec 13, 2010 | 2000 Jeep Wrangler

1 Answer

My 1998 Jeep Wrangler Heater Motor only has one speed High. Nothing on any of the lower ones, no matter on ac or heat. What could be the problem?


This is 100% the Blower (Fan) Motor Resistor located near the Blower Motor.
This is a very common problem with Chyrsler, Dodge, Jeep and Plymouth. The key symptom is the Fan only working on High.
This is very easy to access and replace.

Let me know if this helped....

May 13, 2010 | 1999 Jeep Wrangler

2 Answers

2001 Jeep Wrangler heater blower stopped working


Yes I would go with the switch, BUT, does it have a resistor bank? That is, how does it reduce the speed? Many systems use resistors to lower the speed. Burnt or bad connections can cause this as well.
You can test the blower motor by connecting direct power from a source like the cigarette lighter if you are handy.
Most of the time the lower speeds konk out but the high speed continues to work this is the resistor bank that goes out.

Mar 25, 2010 | 2001 Jeep Wrangler

2 Answers

I have a 1999 Jeep Wrangler and the heater fan stopped working for all the fan speeds. The fuses are fine. How do you know if it is the blower resistor or the blower motor?


If you bypass the resistor pack and connect the motor directly to the fused 12v supply then the fan should run at maximum speed. If so, it's the resistor pack that's blown: a very common fault on a huge number of makes and models.

Feb 13, 2010 | 1999 Jeep Wrangler

2 Answers

A/c - heater blower died, 2004 Wrangler Postal/Sport


THERE ARE 2 SETS OF FUSE BOX,1 UNDER THE HOOD AND ONE INSIDE,INSIDE IS WERE YOU WILL FIND THE BLOWER FUSE.BUT FIRST I WOULD JUST HIT THE BLOWER WITH A SAY SCREW DRIVER, JUST TO MAKE SURE ITS NOT THE BRUSHES INSIDE THE MOTOR ITSELF..JIM,PS MAKE SURE THE MOTOR IS TURNED ON BEFORE HITTNG IT

Aug 20, 2009 | 2004 Jeep Wrangler

2 Answers

Heater blower switch only works on high


I'd replace blower resistor, usually found under hood on firewall on passenger side, or on duct work, inside under dash on passenger side,close to blower motor.

Jun 01, 2009 | 2004 Jeep Wrangler

1 Answer

No Heat 1988 Jeep wrangler


any time you do not have hot water in the hoses to the in side of the vehicle, your water has quit either due to you having only water in the system and it froze in the winter and you started it . or the propeller just broke of old age. make sure u dont have a check valve in the hoses going to the heater core in side the car. valve would be under the hood somewhere in the duration of one of the two hoses, which is the feed. this should do u good

Feb 07, 2009 | 1988 Jeep Wrangler

1 Answer

Heater blower motor not connected


There is a single terminal on the blower motor.
Unless the terminal broke off, you should be able to see it.

Oct 31, 2008 | 2000 Jeep Wrangler

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