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matteoice1

Spark Radiator Oil Pressure Error

I'm experiencing a 'radiator oil pressure defective' error with my 2019 Chevrolet Spark, gasoline engine, which has 182369 km. The transmission indicator light and check engine light are on. The automatic transmission is in emergency mode, gear changes are rough with slippage, and there are grinding noises when shifting. An error is stored. Could a defective cable or plug connection be the problem?

Summary of the thread

The issue with the 2019 Chevrolet Spark was a 'radiator oil pressure defective' error, accompanied by transmission problems such as rough gear changes and grinding noises. The error was suspected to be related to a defective cable or plug connection, possibly misinterpreted as a transmission oil cooler issue. After checking for leaks and contamination, it was advised to consult a workshop for a proper diagnosis. The problem was confirmed to be a defective cable connection, which was repaired at a cost of 95€.

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4 comment(s)

stefanstern1

Whoa, that sounds rough! A 'radiator oil pressure' error is pretty unusual – Sparks don't usually have oil coolers integrated into the radiator like some bigger cars. Are you sure it's not a transmission oil cooler issue? Because all of those symptoms – lights, emergency mode, rough shifting – scream transmission problems to me. Is the radiator coolant level okay? Any signs of coolant leaking into the transmission fluid (milky pink color)? Definitely check the basics first!

matteoice1 (community.author)

Thanks for the quick response. My knowledge isn't extensive. Is it possible the 'radiator oil pressure' error is a misinterpretation, and the issue is actually with the transmission oil cooler? Where would I find the transmission oil cooler, and how would I inspect it for leaks or contamination?

stefanstern1

Okay, so the diagnostic codes can sometimes be misleading! Yes, it's very possible the error is pointing you to the wrong place. Now, your Spark might have a separate transmission oil cooler, or it might be integrated into the radiator. Look closely at the radiator – are there two small hoses running to it, besides the big radiator hoses? If so, those are likely transmission cooler lines. Check those hoses and the connections to the radiator for any leaks or oily residue. Honestly, with all those symptoms, and without specific diagnostic tools, you're probably best off taking it to a workshop. They can properly diagnose the issue and prevent further damage. But at least you have a better idea of what to discuss with them!

matteoice1 (community.author)

I appreciate your assistance. Based on your recommendations, I took the vehicle to a local workshop for diagnosis. It turned out to be a defective cable connection as suspected, and the repair cost was 95€ Thank you for pointing me in the right direction.

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CHEVROLET

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SPARK