Need help with A/C
#1
Need help with A/C
Hi how are all of you doing? I tried to search for this problem and didnt see it. I am sorry if I missed something. Thanks in advanced for reading my post. I have a 1989 Ford Ranger XCab 4x4. My A/C is not working correctly. The compressor will not engage until the engine is at or above 3000 RPMs. Anything below the 3000 RPMs, the compressor shuts off and it blows hot air. If the compressor is engaged the air gets nice and cold. The fan is blowing enough air accross the condencer and evaborator. The engine is running on the low end of the normal range on the temp. gauge, so it is not over heating. All the electrical is connected, and in good shape. It is running on the R12 refrigerant, which the system has the right amount (pressure). If anyone has some suggestions I would greatly appreciate it. I have been trying to figure this out for some time, and I am getting frustrated. Thanks for all your help.
#3
A/C Problem
Thanks for the post. I will have to check that out. But, if the WOT was bad, wouldnt the engine cut off, or run ruff when it is on full throttle? The engine runs fine, but the compressor doesn't engage until 3k RPMs. Tell me if you think it is still the WOT. Thanks again.
#5
Thanks
Oh ok, thanks for your help. I think it is located under the fuse box that is under the hood. Is that correct? If that is correct, which one of the I think 3 or 4 relays is it? Thanks
#7
- Fuel pump (E3TB 9345 A2A)
- EEC (E3AF 12A646 B2A)
- A/C -- I don't know which one: dealer said:
- (E3TB 13A025 A2A)
Everyone on the forums said:
- (E5TZ 19D572A)
I am trying to figure out which one.
My truck had the fuel pump and EEC relays but the A/C one was missing. So, I guess you were right about what was wrong with my A/C.
IF ANYONE KNOWS WHICH ONE IS THE CORRECT RELAY I AM ALL EARS, AND WOULD GREATLY APPRECIATE IT!!!!!
#10
Unregistered User
Posts: n/a
i dought thats your problem. if the WOT relay is missing the compressor clutch will not engage
.
sounds like it needs a recharge. to bad its r12.
its a old system and i wouldnt expect much out of it. to get it working like it should you will need a r132a conversion kit, a new orifice tube (this is probably your problem), a new receiver/dryer, new condenser, new fan clutch and the proper amount of r134a.
if you dont know a lot about A/C systems then you may want to accept the fact you need to take it to a professional and pay to have it fixed right.
welcome to ranger-forums
.
sounds like it needs a recharge. to bad its r12.
its a old system and i wouldnt expect much out of it. to get it working like it should you will need a r132a conversion kit, a new orifice tube (this is probably your problem), a new receiver/dryer, new condenser, new fan clutch and the proper amount of r134a.
if you dont know a lot about A/C systems then you may want to accept the fact you need to take it to a professional and pay to have it fixed right.
welcome to ranger-forums
#11
Relay missing
Ya, that is the one that is missing. Thanks soooooo much for the picture, you have been a great help!!!! I just wish that picture gave the numbers, nun the less it was a great help!!!!. I am continuing to research but I am coming up with the two different relays, maybe either one will work? (E5TZ 19D572A OR E3TB 13A025 A2A). Well thanks for your help!!! I will let you know what I find out. I might just go with what the dealer tells me, as they might know more then the people on some of these forums I have been talking with, but not always the case ex. you and those minimum wage part guys, that just read the computer. lol
#12
i dought thats your problem. if the WOT relay is missing the compressor clutch will not engage
.
sounds like it needs a recharge. to bad its r12.
its a old system and i wouldnt expect much out of it. to get it working like it should you will need a r132a conversion kit, a new orifice tube (this is probably your problem), a new receiver/dryer, new condenser, new fan clutch and the proper amount of r134a.
if you dont know a lot about A/C systems then you may want to accept the fact you need to take it to a professional and pay to have it fixed right.
welcome to ranger-forums
.
sounds like it needs a recharge. to bad its r12.
its a old system and i wouldnt expect much out of it. to get it working like it should you will need a r132a conversion kit, a new orifice tube (this is probably your problem), a new receiver/dryer, new condenser, new fan clutch and the proper amount of r134a.
if you dont know a lot about A/C systems then you may want to accept the fact you need to take it to a professional and pay to have it fixed right.
welcome to ranger-forums
#14
I don't know I have not checked it. I should have when I replaced the line, but I didn't think of it. Do you think I should replace it? It probably will help to get the relay wont it? Thanks for your help...
#15
Unregistered User
Posts: n/a
is the compressor clutch engaging?
if it is then installing a WOT relay is going to do nothing but disengage the clutch at WOT.
i dont remember how the older systems work.
but it sounds like either you do not have a good enough charge or you have a restriction.
did you vacuum the system down before you recharged it?
if it is then installing a WOT relay is going to do nothing but disengage the clutch at WOT.
i dont remember how the older systems work.
but it sounds like either you do not have a good enough charge or you have a restriction.
did you vacuum the system down before you recharged it?
#16
vacuum
is the compressor clutch engaging?
if it is then installing a WOT relay is going to do nothing but disengage the clutch at WOT.
i dont remember how the older systems work.
but it sounds like either you do not have a good enough charge or you have a restriction.
did you vacuum the system down before you recharged it?
if it is then installing a WOT relay is going to do nothing but disengage the clutch at WOT.
i dont remember how the older systems work.
but it sounds like either you do not have a good enough charge or you have a restriction.
did you vacuum the system down before you recharged it?
#17
Help!!
is the compressor clutch engaging?
if it is then installing a WOT relay is going to do nothing but disengage the clutch at WOT.
i dont remember how the older systems work.
but it sounds like either you do not have a good enough charge or you have a restriction.
did you vacuum the system down before you recharged it?
if it is then installing a WOT relay is going to do nothing but disengage the clutch at WOT.
i dont remember how the older systems work.
but it sounds like either you do not have a good enough charge or you have a restriction.
did you vacuum the system down before you recharged it?
#19
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