Question about 1997 Jeep Cherokee Country

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97 cherokee with a blower motor that only works on high. I replaced the resistor, checked the fuses, and replaced the relays. But it still only works on high. What else should I look at?

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I had the same problem with my 97 cherokee, it turned out that I have a vacume leak in one of my hoses, found it and pluged and it worked fine, oe eles you need to get a new or a bone yard heater switch and chang the entire unit out, cost around 25 bucks from the junk yard and vey easy to change..

Posted on Jan 16, 2011

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1 Answer

Location blower motor relay 95 jeep grand cherokee laredo


easter egg hunts 101. what are the symptoms.?
did you check all fuses first/ that be , first
does it blow on high?
the book covering this (FSM) is free to read.
we dont need to cut and paste it , every time asked.
here it is.
it's in the PDC
read chapter 24 yet, HVAC
then 8w (wiring) 8w42
it's all there. and not fake books, it's real the real deal from jeep.
first off the GC has 2 type HVAC sold day 1
manual system
and automatic, ATC
they are totally different. so no one can answer you, lacking that fact.
lets now look at both (extra work)
the manual system has no relay, in the PDC, there is on inside the heater control but is not user serviceable.
does the blow work on HIGH>?????????
the ATC has a large relay. but is not in the PDC, its on the side of the HVAC per below drawings

chapter 24 cover this, why not read it first?

http://www.morris4x4center.com/knowledge-base/index.htm?utm_source=cj#service


page 8w -42-9 (ATC version only) 1 part of a complex system.
26147818-kvl5e4kdfcykuopgofwmpgkg-5-0.jpg
with the free book
a $10 volt meter all this is easy to diagnose.

the manual system the blower is hot. (fused F11 pdc)
the manual system the dash control, grounds the fan
on HIGH. if not on high does so through a RESISTOR block
that R is a relay but is part of the control. (buried)
so if you ground that wire below, called c7
the fan must blow, or fuse F11 is blown.
easy no? if the relay R , right coil is not 12v then that needs to be corrected, if fan blows hotwired, and R is not 0v out.


26147818-kvl5e4kdfcykuopgofwmpgkg-5-1.jpg

Mar 31, 2016 | Jeep Cars & Trucks

1 Answer

Blower motor


I'm showing a blower relay and a resistor used on models with manual ac control.
The blower motor is grounded and the fan switch provides power thru the resistor. So you have a 40amp blower fuse that handles high thru the relay, then a 30amp HVAC fuse that powers the blower thru the fan switch.
Do you not have power from the resistor to the blower motor on the purple wire ?

Jun 26, 2013 | 2003 GMC Envoy

1 Answer

My 2005 Jeep Grand Cherokee heater only blows air on the high setting, I ohm tested the HVAC fuse under the hood and only get response on 1 leg.


when the blower motor resistor fails the blower switch defaults to the high position. autozone.com has a great tutorial on how to replace the blower motor resistor.

realfixesrealfast.com has a segment on blower motor resistors.

Nov 13, 2010 | 2005 Jeep Grand Cherokee

2 Answers

2005 jeep AC and heater blower only high speed works


check fuses, then wiggle speed control while moving, may need new dash control for lower speed, usually high speed works through relay may be the reason high speed works

Nov 03, 2010 | 2005 Jeep Grand Cherokee

2 Answers

2005 grand cherokee blower motor only runs in high no med or low speed,


Change your blower motor resistor, usually that is the last one to go out is high. Also be sure to check your fuses as a just in case.

Aug 03, 2010 | 2005 Jeep Grand Cherokee

1 Answer

What is the location number on a a/c fuse on the


If you don't have your owners manuel to find the fuse/relay location, you can go to flmowner.com and at no cost look at your owners manuel online.
If the fuse/relay is good the possibilities are the switch or the blower motor, with the blower motor being more likely.
If your blower works on high only (maybe not your case, just fyi), the problem is likely the blower motor resistor.
I hope this is helpful.

Mar 17, 2010 | 1997 Ford Econoline

1 Answer

Blower motor does not work


I had the same problem, replace, replace, replace. Check, check and recheck. What I found was the blower motor resistor, located in the blower squirrel cage area, two prongs and a curly wire, was bad. Took the new one back, (it ohmed out okay, continuity ok, all ok!) replaced it with another, and Bingo, problem solved. Frustrating to say the least. After two relays and a blower switch, and test, test and retest. It was a faulty resistor. Made in Mexico. And no guarentee, even though new, it works. Trial and error. Even the dealer parts are Honcho en Mexico. Thanks NAFTA. You gonna make us all welfare babies.

Sep 28, 2009 | 1997 Jeep Grand Cherokee

1 Answer

Fan only works on 4 and 5 settings? Is this a


Hello,

I have a 2003 Chevy Cavalier. The HVAC airflow dial only works on high setting. We checked the fuse and it's o.k.

What now?  Any estimate as to repair cost? 

Thank you

Sep 07, 2009 | Chevrolet Malibu Cars & Trucks

3 Answers

Blower motor just stopped working in my 02 Town & Country


HI Zac the resistor shoud be bypassed in the high setting, If it is not working at all I would suspect the blower motor. If you have a volt meter you can check the power to the blower, should read about 12 volts with the switch in high position.

Jun 26, 2009 | 2002 Chrysler Town & Country

1 Answer

2005 jeep grand cherokee 4.7 Ac fan lost the 3 lower settings, only the high setting still worked. For a while the lower fan settings would just come on, and then go out again. The high fan setting...


Well, the blower resistor handles the lower speeds and the hi-blower relay handles the hi speed only. if the fan still works on the lower speeds then the resistor is bad. if the fan doesn't work at all then your motor has failed and or burn't the relay out also. if you can get your blower to start by hitting the kick panel above the pass. side foot area then the motor is bad. if you are handy enough to drop the kick panel and access the motor then check the connections at the motor. Then wack the motor and see if it comes on then. you will most likely find the problem if you follow those simple rules above. Good luck.

Jul 31, 2008 | 2001 Jeep Grand Cherokee

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