Question about 2001 Jeep Grand Cherokee

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2000 grand cherokee w/ auto climate missing motor on mixing damper under dsh what is this called so I can replace it thank you

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Posted on Jul 15, 2009


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Blower blowing just not much

in all modes, even moving real fast in fresh air mode
no vent blow? weak in hot mode and cold?????????????????

no year stated,so answer will be kinda(weak,)
(weak and. tragically generic, is that good?, no)
see? this is 2016, so.....
lots of EVOLUTION to the EXTREME here.
for sure the climate control option.?
like Gemini 1 to Space X?

weak blower, the filter is dirty:?
hvac self tests fail? (read hvac page in FSM see it?) ask.
12vdc to blower pins, on high?
yes, then blower is weak(means bad)
or there are restrictions, then
top restrictions are dampers stuck
controls to dampers MALF'ING.
or dead mice nests,


Jan 31, 2016 | Jeep Grand Cherokee Cars & Trucks

1 Answer

Why is fan working but air flow is reduced coming into the vents. Does not matter whether hot or cold. Also, noticed cold air leaking into passenger side area.

in call cases check fuses FIRST?
the HVAC system has DAMPERS.
(doors) and have acutators called damper motors.
they are failing
the tests are complex on motors due to no 2 cars use same parts.
in every case , read the FSM tests.
factory service manual., its there. i promise.

or at log in and read. its there.
in all cases
  1. stuck damper (dirt or trash there)
  2. door actuator bad, cable, vacuum servo or motor,
  3. some cars use all 3. I have one.
  4. bad controls to actuator, in all cases (technology)

Sep 02, 2014 | 2000 Jeep Grand Cherokee

1 Answer

Jeep grand cherokee vents

05 GC (WJ)
you hacked the system and wonder why its bad?
huh? what is the question, its not clear.>????
been there done that, but id never ask why, its not working to spec.

many cars have motor actuator driven dampers.
there are 3 types. cable, vacuum and motors and mixed type.
yours is mixed system. motor door and vacuum.
and 2 types single zone and dual. (options)
on the climate control opted car there are 4 motors. (blends)
recirc, mode and driver /passenger blend.
complex that is.
and at least 3 systems used, (options)

best is:
did you ever hear of FSM , the factory service manual an its HVAC chapter, it covers all this.
second best is:

Apr 01, 2014 | 2004 Jeep Grand Cherokee

1 Answer

My heat on my 2000 jeep cherokee works but barly blows out the passenger vents

rule 1 . all cars. all electrics check the fuse in both boxes.
if it works on one vent , with full blow force, and full heat
its not the engine, the blower, or the heater temp path.
its the dampers
there are 3 technologies of dampers, cable, vacuum and motors.
some are hyrbid. mixed.
The FSM covers this. grand or not grand cherokee, big diffr that.
ill guess. your posted to grand but its a non grand so will answer for
plain jane cherokee.
i log in to so can you!
oops yours is the VACUUM monster, and with blend door feedback
electronics. did you scan the PCM to see if it has DTCs for HVAC fails?
my online source has poor Hvac, docs. zero vacuum side. so....
FSM time.

So with all vacuum systems. the control failed to send the vacuum out to damper solenoid
the hose fell off, or is cracked.
the servo is dead, or has cracked diaphram
the damper rod fell off
the damper is jammed.
what i do with all vacuum servos; is move it by hand, got heat now>?
bingo, job half solve in 5 min work.
yes i reach up there or remove glove box, what ever it TAKES.
to touch the slave servo.

happy new year !

Dec 31, 2013 | 2000 Jeep Grand Cherokee

1 Answer

How to change a climate control knob on Jeep grand Cherokee 2000

are you certain its the control knob ?? the heater may be bad...

you remove the part of the dashboard with the control on it, there are hidden screws i the glove compartment and in the pocket. Remove the pocket to reveal them. The rest are under the dash and under the rubber plugs if any).

once you have it dropped you can then replace the control unit.

Dec 29, 2012 | 2000 Jeep Grand Cherokee

1 Answer

Hi I have a 2000 grand cherokee ltd I am having problems with the climate controll not working no fan also the transmission seems to jump and the check engine lite comes on periodicaly do I need to change...

for the transmission I would check the fluid level and add fluid, the climate control may be a fuse or the switch, you will need to check the fuses inside and under the hood as it may be located in the two, to check control switch mark wires and take out and inspect switch. Hope this helped Tim

Oct 17, 2010 | 2000 Jeep Grand Cherokee

1 Answer

2000 jeep grand cherokee limited with climate controle and 6 cyl. the ac blows cold on the driver side and hot on the passenger side.

If you have duel climate control, it sounds like the blend doors inside the heater box have broke. It is a rather large repair to do. If you don't have duel climate control, look for a broken, leaking or aged vacuum line under the battery try. Hope this helps.

Best of luck

Jun 16, 2010 | 2000 Jeep Grand Cherokee

1 Answer

2000 jeep gc laredo 4x4 4.7 auto The front end shakes

if it shakes over 50 miles per hour, it could be your front tires need balancing. and check your ball joints while you are at it. or king pins if it has that. (they are different from ball joints but serve the same purpose.)

May 14, 2010 | 2000 Jeep Grand Cherokee

1 Answer

How do I replace the blower fan for jeep cherokee laredo 2000? Where do I go to buy a replacement? Thank You,

the blower is under dash buy glove box. remove electrcal connector, then remove the screws that hold it in, then pull it out. you can buy a replcement blower at any auto parts store. use old fan cage to put on new motor shaft.

Apr 23, 2009 | 2000 Jeep Grand Cherokee

1 Answer

My Grand Cherokee 2000 turns off by itself, when I just start motor or when i'm in the road. there are not electrical or mechanical problems, the check engine and the ABS lights are on..... any ideas what...

i believe your camshaft senor need to be replace. go to two places look up your vehicle under the used car search and check out the reliability info. second: go to auto zone or advance auto and use their OB II diagnostic machine to check out the codes that is on your suv computer this is why your check engine light is on.

Feb 27, 2009 | 2000 Jeep Grand Cherokee

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