Forum: C4 ZR-1 General Postings
03-13-2025
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Replies: 8
Views: 5,205
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Forum: C4 ZR-1 General Postings
03-13-2025
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Replies: 8
Views: 5,205
Stainless steel coolant crossover pipe
Getting a problem more and more: the oem pipe is made from corrosive steel material. Had some time at work and prepared a new one from stainless steel...will last for eternity. The pipe wall...
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Forum: C4 ZR-1 Parts For Sale / Wanted
03-12-2025
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Replies: 8
Views: 9,466
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Forum: C4 ZR-1 Parts For Sale / Wanted
03-10-2025
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Replies: 8
Views: 9,466
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Forum: C4 ZR-1 Parts For Sale / Wanted
03-07-2025
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Replies: 8
Views: 9,466
WTB connecting cap AC compressor
I?m looking for a AC compressor spare part. I?m missing the cap or cover to assemble my rebuild ac compressor...searched hours in my garage and home...nothing to find...drives me mad. Maybe one of...
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Forum: C4 ZR-1 Technical Postings
03-07-2025
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Replies: 16
Views: 7,747
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Forum: C4 ZR-1 General Postings
01-02-2025
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Replies: 3
Views: 537
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Forum: C4 ZR-1 General Postings
12-05-2024
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Replies: 37
Views: 11,516
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Forum: C4 ZR-1 General Postings
12-05-2024
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Replies: 10
Views: 1,437
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Forum: C4 ZR-1 General Postings
12-04-2024
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Replies: 10
Views: 1,437
Re: Dreaded no start
What about worn contacts on the key for the VATS? The integrated key resistance needs contact to the system into the ignition switch. The anit-theft device awaits the fitting signal...if not: no...
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Forum: C4 ZR-1 General Postings
10-28-2024
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Replies: 160
Views: 164,351
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Forum: C4 ZR-1 Technical Postings
10-25-2024
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Replies: 13
Views: 4,317
Re: Front Brakes Locked - Seeking Advice
DOT3 is the correct fluid...not DOT4. DOT4 is chemical much more aggresive so the rubber seals in the master cylinder are swelling and so: system blocked. Release the 2 nuts that are connecting the...
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Forum: C4 ZR-1 Technical Postings
06-27-2024
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Replies: 4
Views: 10,205
Re: Replacing main bearings
You can`t change the main bearings if the engine is installed into the car. Unfortunately the engine has to be disassembled on a stand until the last screw. The crankshaft must taken out to replace...
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Forum: C4 ZR-1 Technical Postings
04-11-2024
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Replies: 5
Views: 8,351
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Forum: C4 ZR-1 Technical Postings
04-11-2024
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Replies: 5
Views: 8,351
Re: Help with FX3 actuators/faults
Hi Charlie, the rear actuator you purchased from me some days ago works fine...I checked this before selling to you. And as I explained to you: the plastic gears in the head of the actuator may crack...
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Forum: C4 ZR-1 Technical Postings
01-19-2024
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Replies: 15
Views: 16,856
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Forum: C4 ZR-1 Technical Postings
01-19-2024
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Replies: 15
Views: 16,856
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Forum: C4 ZR-1 Technical Postings
01-17-2024
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Replies: 4
Views: 10,063
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Forum: C4 ZR-1 General Postings
10-06-2023
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Replies: 44
Views: 19,599
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Forum: C4 ZR-1 Technical Postings
09-19-2023
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Replies: 9
Views: 4,991
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Forum: C4 ZR-1 Technical Postings
08-28-2023
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Replies: 6
Views: 4,359
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Forum: C4 ZR-1 Technical Postings
08-02-2023
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Replies: 5
Views: 7,571
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Forum: C4 ZR-1 General Postings
07-17-2023
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Replies: 5
Views: 1,695
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Forum: C4 ZR-1 Technical Postings
06-20-2023
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Replies: 5
Views: 3,814
Re: Idle transition issues
Measure out Matthias: the TPS signal must be at 0.50 volts at idle with the oem software on the memcal? Haibeck recommends 0.53 V with his chips. Other voltages can cause your problem.
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Forum: C4 ZR-1 Parts For Sale / Wanted
06-16-2023
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Replies: 6
Views: 2,225
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