Another A/C Problem Thread. Please Help - LotusTalk - The Lotus Cars Community
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post #1 of 15 (permalink) Old 03-21-2016, 07:13 PM Thread Starter
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Another A/C Problem Thread. Please Help

I bought a 2005 Lotus Elise last week and it runs great and drives great however, the A/C is either extremely weak or it doesn't work at all.

I've done extensive searches on this site OR at least as much as I can because the words "AC" and "A/C" is not searchable. On the threads I did find, it seems like there is no hope in terms of an 'easy fix.' Most of the threads I've seen are from years ago so I am posting a new one to see if anyone recently fixed their AC permanently.

When I activate the AC button, it blows outside temperature air (Just fan blowing). When I press the recirculate button, I feel the air get stronger but not any cooler.

My heater works just fine.

I will continue to post any findings but any help will be greatly appreciated!
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post #2 of 15 (permalink) Old 03-21-2016, 08:01 PM
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Search google using this: A/C site:lotustalk.com
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post #3 of 15 (permalink) Old 03-21-2016, 09:16 PM
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Do you feel, hear or see the compressor engaging when you turn on AC?

If not, your system may be low on refrigerant, which usually means a leak has occurred.

(It's never been the fuse, but ck it anyway.)

A good shop will recharge the system with dye in it to track any leak they didn't find prior to recharging.

05 elise (BOE Rev300 supercharged, SSRs, shift tower mods, Multivex; HID hi/low beams); 05 Corolla XRS. Past '72 Elan Sprint (I restored), Lotus 7 w/X-flow, TT Supra, Bugeye Sprite, BMW 2002 & 2002tii, '65 GTO.

Driving Tips-https://www.lotustalk.com/forums/f10...art-1-a-49665/
Moss Emergency Line-https://www.lotustalk.com/forums/f10...cy-line-36631/
Bleeding Brakes- https://www.lotustalk.com/forums/f10...-brakes-241138
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post #4 of 15 (permalink) Old 03-22-2016, 12:03 AM
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Don't and I say don't, go to Autozone and get the quick refill in a can. Take it to an AC place and have them check it. They will be apprehensive because its a Lotus, show them where the ports are and get it done properly.
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post #5 of 15 (permalink) Old 03-22-2016, 06:58 AM
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If the compressor is up to snuff, you may have a stuck temperature flap/door. If it gets stuck on heat, your AC will never feel cold.

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post #6 of 15 (permalink) Old 03-22-2016, 09:03 PM Thread Starter
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Quote:
Originally Posted by Gunpilot View Post
Don't and I say don't, go to Autozone and get the quick refill in a can. Take it to an AC place and have them check it. They will be apprehensive because its a Lotus, show them where the ports are and get it done properly.
That was the first thing I was going to try. I guess I won't be doing that anymore.

Does anyone know how much Lotus dealer/specified shops generally charge to diagnose the A/C?
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post #7 of 15 (permalink) Old 03-23-2016, 05:04 AM
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post #8 of 15 (permalink) Old 03-23-2016, 07:04 AM
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Do you hear the compressor kick in or not? Check the fuse? (Never the fuse, but what the hell..)

Any shop can handle this. I went to some guys here in Chester and they did a great job. Maybe about $125??

Remember the dye for future investigation (if nec).

05 elise (BOE Rev300 supercharged, SSRs, shift tower mods, Multivex; HID hi/low beams); 05 Corolla XRS. Past '72 Elan Sprint (I restored), Lotus 7 w/X-flow, TT Supra, Bugeye Sprite, BMW 2002 & 2002tii, '65 GTO.

Driving Tips-https://www.lotustalk.com/forums/f10...art-1-a-49665/
Moss Emergency Line-https://www.lotustalk.com/forums/f10...cy-line-36631/
Bleeding Brakes- https://www.lotustalk.com/forums/f10...-brakes-241138
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post #9 of 15 (permalink) Old 03-23-2016, 07:02 PM Thread Starter
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When I press the AC, it doesn't change in revs. I assume the compressor is not kicking in.

Sorry, I'm alone all week and can't stand right next to it with someone helping activating it.
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post #10 of 15 (permalink) Old 04-04-2016, 04:44 PM Thread Starter
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Found some maintenance records. A small leak was found in the high side hose after the compressor. Dealer diagnosed it 2 years ago and I confirmed with previous owner that it was never repaired.

My question is can the hose be replaced without taking off the clam? Can it be done just from the bottom?

Last edited by xhifer; 04-20-2016 at 03:12 PM.
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post #11 of 15 (permalink) Old 04-04-2016, 05:43 PM
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With the rh rear wheel off and fender line out, can't see a need for clam removal, but I also can't see my car from here.

05 elise (BOE Rev300 supercharged, SSRs, shift tower mods, Multivex; HID hi/low beams); 05 Corolla XRS. Past '72 Elan Sprint (I restored), Lotus 7 w/X-flow, TT Supra, Bugeye Sprite, BMW 2002 & 2002tii, '65 GTO.

Driving Tips-https://www.lotustalk.com/forums/f10...art-1-a-49665/
Moss Emergency Line-https://www.lotustalk.com/forums/f10...cy-line-36631/
Bleeding Brakes- https://www.lotustalk.com/forums/f10...-brakes-241138
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post #12 of 15 (permalink) Old 04-05-2016, 05:01 PM Thread Starter
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Any idea of difficulty to replace the high side line? I don't wanna tackle something I can't handle. Any input before I start digging into it myself?

Anyone know the part number for the high pressure line at the compressor?

Thx

Last edited by xhifer; 04-06-2016 at 02:06 PM.
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post #13 of 15 (permalink) Old 04-07-2016, 01:02 AM
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Quote:
Originally Posted by xhifer View Post

Anyone know the part number for the high pressure line at the compressor?

Thx
Not sure which pipe you are looking for but here are the ones I think you might mean. Send me a PM with Email address and I will send you more details.

04 Refrigerant Pipe, reciever drier to condenser, LHD A120P0007F

05 Refrigerant Pipe, reciever drier to expansion valve, LHD 120P0005F

06 Refrigerant Pipe, condenser to sill connection A117P0051F

07 Refrigerant Pipe, expansion valve to sill connection, LHD 120P0009F

08 Refigerant Pipe, high pressure, rear to front connections A117P0138F

09 Refigerant Pipe, suction line, rear to front connections A117P0139F

10 Pipe/Hose Assembly, compressor discharge B120P0003F

11 Pipe/Hose Assembly, compressor suction B120P0001F
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post #14 of 15 (permalink) Old 04-07-2016, 08:09 AM
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You should have the shop manual.

Threads on many pipes must be lubricated with refrigerant oil IIRC.

05 elise (BOE Rev300 supercharged, SSRs, shift tower mods, Multivex; HID hi/low beams); 05 Corolla XRS. Past '72 Elan Sprint (I restored), Lotus 7 w/X-flow, TT Supra, Bugeye Sprite, BMW 2002 & 2002tii, '65 GTO.

Driving Tips-https://www.lotustalk.com/forums/f10...art-1-a-49665/
Moss Emergency Line-https://www.lotustalk.com/forums/f10...cy-line-36631/
Bleeding Brakes- https://www.lotustalk.com/forums/f10...-brakes-241138
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post #15 of 15 (permalink) Old 04-19-2016, 09:53 PM Thread Starter
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My AC is FIXED! So the AC on my Elise didn't work for over 2 years (Previous owner refused to pay dealer $800 to replace the line). Brought it to a local shop and it ended up being a simple Schrader valve that was defective and leaking. When hooked up to a vacuum, it won't appear that it's leaking but after it was filled with freon it was obviously leaking.

Drove 150 miles today in 80-90 degree weather. It worked perfectly.

Don't always believe the dealer. Apparently they wanted to charge the previous $800 to replace the whole line instead of just the valve.

Last edited by xhifer; 04-20-2016 at 03:13 PM.
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