The compressor will not come on, the freon level is correct, I even jumped out the low pressure switch but it wont come on .I have 8.5 volts to the electric connection is that enough to start it ?It just stopped working all of the sudden and was not come back on. Any ideas!
Check the high side ac clutch cut out switch,witch could be in back of compressor,or in a high side line.By pass the switch to see if the compressor will come on.Also the ac module could be gone out.First check the ac clutch relay,or better yet swap it out with a relay just like it,same number will be on the relay,this will tell you if it is the relay.
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The ac module can be any where on a dodge,does the ac control head have buttons and digital led?What I am asking ,is the control head automatic?If it is ,the a reset is a good try.Most of the time the battery has to be disconnected to reset,but in this case the ecm,that controls the engine would loose all it`s memory.Look in the fuse panels,and look for the ac fuse and pull it out,and turn on key to see if the ac head , lights up(if it has digital display).I will ry and find out if the ecm is preflashed at factory.Mean while try this things I mentioned.If you don`t hear from me email [email protected]
I think it might be a preflashed computer,so don`t disconnect the battery,unless you know that it won`t affect the ecm.If you have changed batteries before,yourself,and the ecm was ok,then disconnect the battery negative battery cable for about 30 seconds,and reconnect,let me know the out come.The ac,must have a problem,or the ac would not have shut down.A set of ac gauges on the ac system would tell the story,may be the expansion valve has closed up,,,,or dryer has clogged up,hopefully not the compressor.But something shut it down,if the ac control unit is automatic,then it could be simply bad(the ac control unit that you select heat,air vent defrost,etc.)let me know something.
Ok,try the things I mentioned,also the Dakota had a problem with a ac fuse under the dash on the driver side,it didn`t make good contact ,so check to see if 12 volts are on both sides of the fuse,and check, by pulling fuses and look at the contacts to see if one of them has pushed back inside of the fuse block.You can try this,splice a wire on the hot side of the compressor direct to the battery,and see if the compressor will run.Start the vehicle first,and touch the wire to the positive side of battery,make sure it is the hot side of the ac compressor coil,not the black wire.if it acts funky,or doesn`t come on,or trys to short out ,then the ac clutch on the compressor is bad.Let me know how you come out.
Alrighty then,the ac control module is the problem most likely,but have you tried to reset the ac system?Try pulling the ac fuse out for about 15 seconds,better yet,find the ac module and unplug it from all connectors,with key off.I don`t know where it is on that model,but I would assume it is under dash behind glove box some where.Do you have ac gauges?If you do look at the readings,and run the compressor from battery and see if there is a problem.Also,pull ac control switch out of dash,and inspect the wiring on the back of the control unit(the unit with ac,fanspeed etc.)Check with a test light,the in,and out of the ac switch.One wire will be hot all the time,the other will be hot only when you push the ac button to on.See what you come up with and let me know,we will figure this [email protected]
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Yes I swaped out the relay that didnt work but will try the hight pressure switch.Where is the ac module located? and how can it be checked. Thanks!
Yes I swaped out the relay that didnt work but will try the hight pressure switch.Where is the ac module located? and how can it be checked. Thanks!
It has three round knobs #1fan,#2 temp and #3vent, defrost, recirc, etc then small push button for a/c with single led.
It has three round knobs #1fan,#2 temp and #3vent, defrost, recirc, etc then small push button for a/c with single led.
I ran directly to the battery and the clutch engaged and it sounded fine. Its only getting 8.5 volts to the connection.Fuse is ok.
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