I have an '02 S-Type with the V6. The AC stopped working last week. When I went looking at fuses, I found the F1 fuse under the hood blow. It is the 10amp fuse in the upper left corner.

I tried replacing it with a new 10amp fuse and it blew as soon as the AC was turned on. It did the same with a 15amp fuse.

What does this fuse control? Can you help me know how to trouble shoot the AC and this fuse?

Thanks in advance. Greg

 

Generally the handbook is quite good at saying what fuses & relays do. For details see the electrical guide (they're in JTIS or on the various sites often posted on here such as Jaguar electrical reference)

 

Hmm, according to the handbook in Topix fuse F1 in the engine compartment is not used.

 

Ouch. Can't say I own a year 2000 manual. The fuse is shown in the electrical guide. You'd really really hope the two docs would agree!!

edit: have just fought TOPIx. Unable to find any 1999 or 2000 owner handbook but got the 2001 OK (which should be the same as regards fuses etc) and it does list Fuse #1 in engine compartment plus appears to agree with electrical guide.

 

It's the A/c Clutch, must be going out. Try a 15 amp fuse, it might work for a little longer, but when that blows... time for a new compressor. They go out all the time, have you changed it before?

For future reference, here are the Engine Compartment Fuses for the 2002 S-type

Link: Car Articles: 2002 Jaguar S-type Engine Compartment Fuses

 

Well this is what I found in Topix. The AC clutch is listed on F32.

 

Er.... that looks to be the page from the 2002.5MY i.e. redesign car. He's got the earlier (original).

 

That would explain it, I just looked up the 2002 MY handbook, the 2001 book shows the right info.

 

Gave me some puzzled moments till I figured it out!

 

I thought it must be the A/C compressor clutch. (But I had seen the diagram saying it was unused also!)

I can replace the compressor, no problem. I just did the compressor on my F250 last week. It is much harder to get to than this one.

BUT!!!! Is there any way to trouble shoot all the over pressure sensors before I go and replace the compressor?

ALSO: Do we know if the compressor from the 2002 Lincoln LS will work on this S-type? What about the dryer unit and the orifice tube?

Thanks for all your help! This forum is awesome!

 

I just called around and it seems the clutch unit is not available. Have to buy the entire compressor/clutch unit. The cheapest I can find is at AutoZone for $349 with 3mo warranty.

Advance Auto has the compressor for $399.99 with a 2yr warranty. I guess that might be worth $50. What do you all think?

To get the 2yr warranty, one has to also purchase the drier/receiver assembly ($56) and the expansion valve ($42). So we are talking $500 plus Freon and oil.

The vehicle is 9 years old. I'm guessing this is probably the first time the system has been replaced. Normally I would replace all three parts. Do these prices seem about as good as it will get? What do you think?


Is there any way to be certain the problem is really the AC compressor/clutch unit and not something else?

 

What do you think? Would you trust this guy? NEW AC COMPRESSOR AND DRIER KIT 102541 EXCLUDES V8 | eBay

I can get one from eBay with a one year warranty including the dryer for $185 and $20 shipping.

Seems like a deal! What do you think?

 

Sorry Greg, missed that.

Yes. I think the jag OBD tool can just read the sensors as seen by the car (PCM & CCM). You could look with a meter - don't know how accessible they are. On my car there are at least: hi & lo pressure switches, several temp sensors & a humidity sensor. You know about quite a few of these I think & also IIRC your car won't have the humidity sensor. I would say that the computers won't inhibit the a/c from cooling regardless of some of the sensor readings, especially if you select the max cooling (shows as LO or some such I think).

You won't be able to change the values of hi & lo pressure switches unless you either change the a/c charge (not worth doing) or disconnect and then short the related wiring to gnd / batt+. Go carefully

But you can just meter them to see if they're already broken i.e. signalling a false condition such as low a/c charge when actually there's plenty - the PCM would then not engage the compressor (which as you know it does via its clutch).

If you've already powered the clutch direct and the compressor won't run then I think that shows a bad clutch/compressor and the switches become irrelevant I think.

 

You can test all you want but I have done hundreds of these... is always the compressor. Sensors won't blow the fuse.

Best of luck!!! BTW, how do you plan on recharging the systems R-134a (refrigerant)?... and please don't say that Discount Auto Parts canned crap...I hate that shi*

 

Ah. Well, that decides it! I'm sure Greg will be "pleased".

 

So what should he charge it with, assuming he wants to do the job himself?

 

Didn't Rick do a quite similar job, just on a later car? In the FAQs. Pretty sure he shows the can and all.

 

Before you do anything please trouble shoot the problem further. Have you replaced the DCCV? Does or has the A/C and heat ever been uneven?? With the miles you have the DCCV should have already been replaced.

Here is what I would do BEFORE buying anything. Unplug the A/C compressor clutch. Now replace the fuse to see if the short is located in the clutch or not. If the fuse does not blow plug the compressor back in to verify that is your problem.
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Yes I did on the wifeys S Type.

I also replaced three other compressors and recharged the systems with the "low cost auto parts can shi....", for different people and different makes of vehicles this past summer!!! They are happy and I am happy!!

I have had NO issues with the "canned" stuff nor will anyone else!
https://www.jaguarforums.com/forum/s...ics-faq-55219/

I would follow the FAQ and you will have NO problems!!

But I do agree with daxter on one thingy, replace the compressor its shot.
https://www.jaguarforums.com/forum/s...ics-faq-55212/

 

So when you did this did you add compressor oil? If so, how much?

Thanks.