Problems with AC

[Rav]

Hey Guys,

Firstly sorry for being off the board for a while. I got real busy at work with both design and testing. Things are still hectic but not as bad as before, so down to only 60 hours a week. Unfortunately none of it is galavanting around the world like Eric. I gotta join his group!

Anyway along with the infamous clunk which I can live with for the moment. My AC is wonky.

A friend said that the most likely thing was that it just needed a recharge so we bought a can of R134 and hooked it all up. He said though that the pressure on the low side was way to high and it looked like there was something more seriously wrong, maybe an 'orfice' valve or something. You can tell I'm an engineer right?

So it's off to a shop tomorrow to see what the problem is and how much I am going to be stiffed for!

Anyway, I'll slowly work through the old threads and see what's been going on.

Hope everyone else is cool and enjoyed the world cup.

Rav.

 

[ChuckD]

what did you find out today?

 

[Rav]

They didn't have time to look at it today. So I'm going to take it in tomorrow.

The AC completely gave up the ghost today and I had to drive to Scottsdale. I nearly died. I need to get this fixed quick.

 

[Off Road SHO]

Rav,

If it's the compressor that has fragged out, you'll need to get a new dryer and orifice tube also. And it will be expensive, my guess around 1000.00 to 1500.00 with parts and labor. I know an honest mechanic if you need one.

Tom

 

[03CopperBusa]

A/C Problems

Hey Guys,

Firstly sorry for being off the board for a while. I got real busy at work with both design and testing. Things are still hectic but not as bad as before, so down to only 60 hours a week. Unfortunately none of it is galavanting around the world like Eric. I gotta join his group!

Anyway along with the infamous clunk which I can live with for the moment. My AC is wonky.

A friend said that the most likely thing was that it just needed a recharge so we bought a can of R134 and hooked it all up. He said though that the pressure on the low side was way to high and it looked like there was something more seriously wrong, maybe an 'orfice' valve or something. You can tell I'm an engineer right?

So it's off to a shop tomorrow to see what the problem is and how much I am going to be stiffed for!

Anyway, I'll slowly work through the old threads and see what's been going on.

Hope everyone else is cool and enjoyed the world cup.

Rav.

I didn't think the SHO's had 134A in them or at least anything that was pre 1995. How high on the low side was the reading? R134A can run at between 30 to 60 psi and about 200 psi on the high side on a warm day. The 134A will also leak out of places that the old R12 would not. Just my two cents but I am in the process of locating a leak in a 1984 Ranger pick up and have been doing quite a bit of A/C work here lately. I am going to have to replace the compressor on that one but at least you can get to it. The SHO is quite a different story.

 

[nik97]

Does your'e compressor even come on?

 

[Rav]

Does your'e compressor even come on?

Nick, come on this is me you're talking too. How do I know if the compressor comes on?

I had a look under the hood and the decal showed that it was supposed to be R134a that went in there. The low side looked like it was reading something like 80-90 and the high side was around 200, these are the numbers that I remember, I didn't pay too much attention thought as I didn't know what was going on.

Yesterday even the little bit of cooling I got, completely stopped. Now it's just like the fan is blowing.

Rav.

 

[Rav]

Rav,

If it's the compressor that has fragged out, you'll need to get a new dryer and orifice tube also. And it will be expensive, my guess around 1000.00 to 1500.00 with parts and labor. I know an honest mechanic if you need one.

Tom

Hey Tom,

That's what I was worried about. Without going to the mechanic yet, currently it looks like $1k for the AC and $1.5k for the mysterious clunk. Yet the car is probably only worth $3k.

Anyway please send me the details of that mechanic. I'm off to the shop now to see if they can take a look at it.

Thanks,

Rav.

 

[Shoaz]

Yeah, but your car is white so you really don't need a/c here, anyway, right?

I get by without a/c in the Pumpkin...

 

[Rav]

Yeah, but your car is white so you really don't need a/c here, anyway, right?

I get by without a/c in the Pumpkin...

Hey Eric,

How many vehicles with working AC do you have? I had to go to Scottsdale last night and was soaked, thought I was going to die.

Today just driving down Chandler blvd was bad.

The clunk I can live with, but without AC? No way.

This maybe crunch time for the SHO.

 

[Off Road SHO]

Troy Clark, owner of Modern Automotive

(623) 587-5568

His shop in a business complex near the S/E corner of I-17 and Loop 101. After you're in the complex, his shop is in the S/W cowner of the complex.

He's a very knowledgeable guy when it comes to automotive diagnosis; he's not one to start throwing parts at a problem at the customers expense. And he's honest with you, even if it means losing some business. I have him do all of the heavy maintenance on all of my vehicles, business and personal. He's not inexpensive, but his shop rate is always lower than a dealer or big franchise shop.

Oh, and he has an SHO motor in his off road car- turbo charged too. Gotta be a nice guy.

Tom

 

[Rav]

Troy Clark, owner of Modern Automotive

(623) 587-5568

His shop in a business complex near the S/E corner of I-17 and Loop 101. After you're in the complex, his shop is in the S/W cowner of the complex.

He's a very knowledgeable guy when it comes to automotive diagnosis; he's not one to start throwing parts at a problem at the customers expense. And he's honest with you, even if it means losing some business. I have him do all of the heavy maintenance on all of my vehicles, business and personal. He's not inexpensive, but his shop rate is always lower than a dealer or big franchise shop.

Oh, and he has an SHO motor in his off road car- turbo charged too. Gotta be a nice guy.

Tom

Thanks Tom.

I dropped the SHO off to a place that a buddy recommended. They are going to have a look at it today and I'll let you guys know what the score is.

Thanks everyone.

Rav.

 

[Rav]

Okay guys, apparently the compressor is completely whacked.

Total cost for the job is $1500 with parts and labour. To be honest I reckon I'm going to have to get it done.

I'll have to survive the weekend and try and get it done early next week.

What do you all reckon?

Rav.

 

[Off Road SHO]

Junk yard if it's the same compressor as a SLO or Mark8. ACKITSonline.com for the drier and or orifice tube. Hire Nick or Joe to do it for you at my shop. Get my neighbor to recharge it.

Tom

 

[03CopperBusa]

Sho A/c

Junk yard if it's the same compressor as a SLO or Mark8. ACKITSonline.com for the drier and or orifice tube. Hire Nick or Joe to do it for you at my shop. Get my neighbor to recharge it.

Tom

Drive it down to Willcox and I will put the R134A in it for you. I have about two cases of the stuff that I bought for my money pit car and only used a few cans after I got all my system leaks fixed in that monster. I even bought an air powered vacuum pump.

 

[Rav]

Junk yard if it's the same compressor as a SLO or Mark8. ACKITSonline.com for the drier and or orifice tube. Hire Nick or Joe to do it for you at my shop. Get my neighbor to recharge it.

Tom

Hey Tom,

I could be wrong but I think that the fella said it was a different part for the SHO, and that was why it was more. To be honest, I can't take to much more of this driving without the AC so may have to just pay to sort it.

It's as they say... "You can have cheap, good, fast. Pick two."

 

[F-22 Raptor SHO]

Rav (and others on the dooleyville team)

Consider this on the A/C...the 95's ac took a dump so I went to charge it up thinking the 134a just leaked out. Nope....the pressure was very high but no compressor in gaugement. hmmm....ok, guess i'm gonna not have a/c. 2 days later it kicked on and ran cold.....whoo hoo, maybe all is well. Well today I was driving it and it was blowing cold and so I thought I would put it on vent for a bit. Went to switch back to ac and it wouldnt go. Odd, cold then warm and not going back.

Well, after chatting with hunter, it sounds like it is the clutch that needs to be shimmed. There are magnets behind the clutch that have to be shimmed (much like the cps) that should fix the problem. I will be cutting into it after I get back from detroit.

I would suggest checking that on the v8 before paying out 1000 bucks. Perhaps wacking the compressor with a mallot (lightly there Tomboy) to get it to engage? How much work did the shop do to it to diagnose?

 

[Rav]

Rav (and others on the dooleyville team)
-[SNIP]-

I would suggest checking that on the v8 before paying out 1000 bucks. Perhaps wacking the compressor with a mallot (lightly there Tomboy) to get it to engage? How much work did the shop do to it to diagnose?

Hey Michael,

The shop actually seemed to dig into it pretty well. There very good friends of a buddy of mine so hopefully they should be okay. Apparently they dug down to the compressor and that it was basically shot and that it was practically falling apart.

Can't really say much more than that. All I know about AC units is that they act like big fridges, and all I know about fridges are from my GCSE Physics class.

Rav.

 

[hawkeye18]

The SHO compressor is unique to the SHO. 10P15F is what you need. Sorry I can't help more...