Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
1 Week Ago
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Replies: 14
Views: 3,161
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Forum: C4 ZR-1 Technical Postings
2 Weeks Ago
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Replies: 24
Views: 12,101
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Forum: C4 ZR-1 Technical Postings
2 Weeks Ago
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Replies: 24
Views: 12,101
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Forum: C4 NCRS for ZR-1s
08-26-2024
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Replies: 6
Views: 5,281
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Forum: C4 NCRS for ZR-1s
08-26-2024
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Replies: 6
Views: 5,281
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Forum: C4 NCRS for ZR-1s
08-04-2024
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Replies: 6
Views: 5,281
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Forum: C4 ZR-1 Technical Postings
06-09-2024
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Replies: 0
Views: 6,813
1990 Blend door/heater core box replacement
Hello,
The blend door actuator on my 1990 went bad for a second time after 6 years. Since it is such a PIA to get to on the top of the heater core box I am thinking about switching to the 95-96...
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Forum: C4 NCRS for ZR-1s
05-29-2024
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Replies: 11
Views: 11,686
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Forum: C4 ZR-1 Technical Postings
05-18-2024
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Replies: 10
Views: 15,605
Re: Freon capacity for 91 ZR-1?
Jeff,
Sorry I know this is an old thread.
So if one is converting their 1990 ZR1 to R134a the charge should be between 27 oz. and 28.8 oz., correct?
Do you know what the proper high side...
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Forum: C4 ZR-1 Technical Postings
05-15-2024
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Replies: 11
Views: 16,666
Re: 1990 AC question
Thanks Bob. You are correct. I spoke with Marc and will do the conversion myself as soon as the parts arrive.
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Forum: C4 ZR-1 Technical Postings
05-15-2024
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Replies: 11
Views: 16,666
Re: 1990 AC question
I spoke with Marc H. He tells me the compressor, accumulator/dryer, orifice tube and O-rings are compatible with R134A. He also said the lines did not need to be flushed. Just need to evacuate the...
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Forum: C4 ZR-1 Technical Postings
05-15-2024
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Replies: 2
Views: 8,357
r12 to r134a conversion question
I recall that I read somewhere that it takes less R134a to charge the system than R12. Does anyone have information on the amount of R134A is needed for a full charge in a 1990 ZR1 AC system?
...
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Forum: C4 ZR-1 Technical Postings
05-09-2024
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Replies: 11
Views: 16,666
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Forum: C4 ZR-1 Technical Postings
05-08-2024
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Replies: 11
Views: 16,666
Re: 1990 AC question
I tried to charge the system using the FSM procedure, no luck. Unfortunately there is no one locally which can work on a R12 car, good old NYS has banned R12 Freon and gives heavy fines to mechanics...
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Forum: C4 ZR-1 Technical Postings
05-06-2024
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Replies: 11
Views: 17,013
Re: Tire pressure sensors
They appear to be NLA at Corvette Central. I believe they were GM part # 10180847 for the 91 to 96 MY.
Try this website:
http://oemcats.com/oem-parts/10180847.html
They are pricey.
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Forum: C4 ZR-1 Technical Postings
05-05-2024
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Replies: 11
Views: 17,013
Re: Tire pressure sensors
Check with Corvette Central or Ecklers. If memory serves I think they may have the later MY stickers.
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Forum: C4 ZR-1 Technical Postings
05-05-2024
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Replies: 11
Views: 16,666
Re: 1990 AC question
I understand there are numerous places for a leak to occur, I have every intention of using an UV dye to find the source of the leak. However in order to add the dye, I have to charge the system...
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Forum: C4 ZR-1 Technical Postings
05-04-2024
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Replies: 11
Views: 16,666
1990 AC question
I am getting code 09 which is low Freon. I am running through the diagnostic in the 1990 FSM and it says to add 1 lb. of R12. The AC clutch is not engaged so my question is, will I be able to add...
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Forum: C4 ZR-1 Technical Postings
05-03-2024
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Replies: 11
Views: 17,013
Re: Tire pressure sensors
The stickers are different for different MYs I have some for the 1990 MY if you are looking for 1990.
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
04-11-2024
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Replies: 2
Views: 1,337
Re: Bilstein FX3 Shocks
My understanding is that Bilstein considers shocks with a Delco label to be a GM part and there are trademark issues with GM. There are other rebuilders which will rebuild them with a long lead...
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
04-10-2024
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Replies: 2
Views: 1,337
FS Bilstein FX3 Shocks
Cleaning out the garage and found a set of used Bilstein FX3 shocks. Rather than throw them away, I thought I would offer them here for rebuilding. Two #22113593 with ZB sticker on them. Also have...
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Forum: C4 ZR-1 General Postings
03-10-2024
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Replies: 5
Views: 1,277
Re: I'm looking for the FX3 Bilstein shocks
I have a set of 4 which I was holding on to as cores. I had heard that Bilstein was rebuilding them a while ago, not sure about that now. Don't want to hijack your post but I will consider selling...
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
01-03-2024
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Replies: 14
Views: 3,161
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Forum: C4 ZR-1s and ZR-1 Parts For Sale/Wanted
11-13-2023
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Replies: 10
Views: 4,093
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