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sinastorm7

Monza Air Suspension Compressor Issue

I'm pulling my hair out. I've got a 2019 Chevrolet Monza with a gasoline engine, and the air suspension is completely borked. It's done 237330 km. The car is sitting ridiculously low. The dash is screaming with error messages, and the headlights are pointing at either the sky or the ground. I scanned the codes, and it's all pointing to the air suspension compressor. I've checked the fuses, and they're fine. I've also wiggled the wiring harness and plug on the compressor itself, thinking it might be a loose connection, but no luck. Anyone else run into this?

Summary of the thread

A 2019 Chevrolet Monza owner experienced issues with the air suspension, causing the car to sit low and display error messages. Initial diagnostics pointed to the air suspension compressor, but fuses and wiring checks showed no issues. Suggestions included checking for air leaks and inspecting the connector for corrosion. Upon further inspection, corroded connector pins were found and cleaned, temporarily resolving the issue. Ultimately, the problem was traced to a defective plug connection, which was fixed for 95€.

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4 comment(s)

kurtmueller21

Sounds rough! I had a similar issue with my Monza. Those air suspension compressors can be a pain. Before you go tearing everything apart, did you check for any obvious air leaks in the system? Sometimes a small leak can cause the compressor to overwork itself and eventually fail. Also, when you wiggled the connector, did you happen to check for any corrosion or damage to the pins inside the connector itself? Even a tiny bit of corrosion can cause a bad connection.

sinastorm7 (community.author)

Good call on the corrosion! I didn't specifically look inside the connector. I'll give that a shot. As for air leaks, where are the usual suspects? I gave the air lines a quick once-over, but didn't see anything obvious. Are there any specific spots on the struts or compressor that are prone to leaking?

kurtmueller21

Yeah, definitely check those pins. On the leak front, the strut air fittings are common culprits, as well as the compressor itself. Honestly, chasing air leaks can be a nightmare. If you're not finding anything obvious, and you're getting compressor fault codes, it might be worth taking it to a workshop with the right diagnostic tools. They can usually pinpoint the problem pretty quickly.

sinastorm7 (community.author)

Thanks for the advice! I checked the connector pins like you said, and they were indeed corroded. Cleaned them up, and the compressor kicked back to life... for about 5 minutes. Then it died again. Checked the voltage on the connector and there was none. Finally managed to trace the cable to a defective plug connection. Cost me 95€ to fix it. Lesson learned: always check the simple things first! Thanks again for pointing me in the right direction.

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CHEVROLET

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MONZA