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Wiring schematics for 1995 Jeep Wrangler with 4.0 motor and 5 spd. trans. Problem: fuse that's for the heater/air conditioner keeps blowing

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  • firewater52 Sep 09, 2010

    I traced my problem to the front wiper motor as the problem causing a short in the grounding system that includes all the grounds for the air conditioner. I believe it's the off switch on the wiper motor as the wipers work and then when you shut them off it blows the fuse. Have you ever had this problem before?



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The heater blower switch needs to be checked.The switch gets corroded internally and gets over heated and this many a times causes the fuses to blow for ac/heater.Also check the fuse block in which the fuse is inserted/.If the fuse block is dirty or rusted internally then this can also be the reason. Check out. Keep updated.Thanks.

Posted on Sep 01, 2010


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which engine? 4.0L? which trans, stick or a/t?
can you show the location of the fuse exactly.
each fuse has number and the schematics show only the F number.
is the fuse in the front PDC box, under hood>?
PDC fuse F9 blows, 30amp fuse???? no lower.

need exact fuse to wax smart, i do not have the oper guide that shows, names.
1: wires to it or to PCM shorted that line.
2:PCM bad.
3: OR SOME THING CONNECTted to PCM is shorted.
finding intermittent can be hard, i use, tools that allow me monitor those lines, an ammeter (clamps on wires) id check for wire damage first.
things that can overload the PCM are:
the Alternator Field source pin,
the ISC motor.
both 0xy sensors the heater can not be shorted.
the speed control servo,
in all cases wires too not shorted.
its not the injectors it has its own fuse f28
all comments usa car and guess 4L
now my wild guess, the 02 wires are melted and touching hot exhaust, seen vast times.



May 26, 2016 | 2003 Jeep Wrangler

1 Answer

Air conditioner allways blows on feet

check the blend door motor. there is 4 on the heater box under the dash

Feb 10, 2013 | 1995 Jeep Grand Cherokee

1 Answer

92 jeep wrangler 5 spd 4 cyl skipping and bogging down replaced timing chain distributor plugs wires injector o rings cleaned out fuel tank new map sensor and new crank sensor sometimes it runs fine but...

Replace the catalyst convertor. When a convertor goes bad, the guts of it break apart and end up clogging the exit port. One of its functions is to remove toxins from the air. Helps the emission system to run rich or lean gas exhaust.

May 06, 2012 | 1992 Jeep Wrangler

1 Answer

1994 jeep wrangler 6 cyl 5 spd no start

have u ck out the ignition switch [not the key & tumblers],, or the neutral safety switch to see if u have power ,,also seen broken wire at solenoid on starter too,,hope it helped,,

Apr 05, 2010 | 1994 Jeep Wrangler

2 Answers

Blower speed question (ac/heater). This just

This is definitely 100% the Blower Motor Resistor.
Replace this and all speeds will work fine.
This Resistor is defined with 3 to 4 wires going into it, and is located adjacent to the Blower Motor.
It is easily access, removed and replaced.
I will post an additional comment on Part Number, Price and where available.
Let me know if this helped, or if you have additional information or questions. Feel free to contact me at!

Feb 19, 2010 | 1999 Jeep Wrangler

1 Answer

Heater fuses

That fuse also feeds the A/C compressor. did you check the blower resistor? that is in circut before the blower motor. it may have grounded out. More than likely, your'e going to have to start tracing wires. look for chafed or pinched wires under the dash. Has anyone been in there recently? (if pinched during factory assembly it would likely have shown up a long time ago. Have you added anything new in the past few months? if so it may be shorted. Back to AC... disconnect the compressor and check that no wires have burned onto a hot pipe or manifold, In general most wire problems happen either when someone messes with something or when they touch a hot item and burn through.
Good luck

Nov 08, 2008 | 1995 Jeep Wrangler

1 Answer

1995 Jeep Wrangler YJ

a right angle pipe coming out from the top of the valve cover with a rubber hose attached. if you it out, shank it! it should sound like a mabble inside of it.

Oct 14, 2008 | 1995 Jeep Wrangler

5 Answers

Heater blows cold air

the electric motor that open the heat door looses electrical connection there by the door stays on cold / it is located under the a/c heater assembly / which requires removing the whole dash and heater assy// also bleed all air out of coolant system
there are three doors / 1/ a/c heat 2/ mode /defors 3/ recurculation

Jul 19, 2008 | 2004 Jeep Wrangler

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