Jozef

Engine and RPM problems on a Nissan Qashqai

Good day, I own a 2013 Nissan Qashqai with a 1.6 dci (R9M) diesel engine and 270,000 km on the odometer. I have a problem that when the car warms up and the outside temperature is higher, the RPMs start to drop and the gauges on the dashboard jump around. The engine, ESP, 4WD warning lights, and an orange exclamation mark illuminate. The engine fan turns on and off intermittently. After the car cools down, it behaves normally. Based on diagnostics, I replaced the glow plugs, but the problem persists. Thank you for any advice.

(Translated from Slovak)

A 2013 Nissan Qashqai with a 1.6 dci diesel engine experiences RPM drops and erratic dashboard gauges when warm, accompanied by multiple warning lights and intermittent fan operation. Initial diagnostics led to replacing glow plugs, but the issue persists. Suggested solutions include checking the battery and alternator for consistent voltage, inspecting engine ground connections, examining the engine coolant temperature sensor, and inspecting the wiring harness for damage.

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7 comment(s)

Check the battery and alternator to ensure they are providing consistent voltage, as electrical issues can cause erratic gauge behavior and warning lights. Make sure the battery terminals are clean and secure. Let me know if this resolves the issue or if you need further assistance.

community_quotation:
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Check the battery and alternator to ensure they are providing consistent voltage, as electrical issues can cause erratic gauge behavior and warning lights. Make sure the battery terminals are clean and secure. Let me know if this resolves the issue or if you need further assistance.

I put in a new battery, and the alternator is charging and the terminals are clean. The problem persists as I described.

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I put in a new battery, and the alternator is charging and the terminals are clean. The problem persists as I described.

Inspect the engine's ground connections for any corrosion or looseness, as poor grounding can cause electrical issues. Pay special attention to the main ground strap between the engine and the chassis. Let me know if this helps or if you have further questions.

community_quotation:
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Inspect the engine's ground connections for any corrosion or looseness, as poor grounding can cause electrical issues. Pay special attention to the main ground strap between the engine and the chassis. Let me know if this helps or if you have further questions.

I've already checked it, and it's okay, the problem still persists

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I've already checked it, and it's okay, the problem still persists

Consider checking the engine coolant temperature sensor, as it might be giving incorrect readings when the engine warms up, causing erratic behavior. If the sensor is faulty, it can affect engine performance and trigger warning lights. Let me know if this helps or if you have further questions.

community_quotation:
community_author_wrote_on
Consider checking the engine coolant temperature sensor, as it might be giving incorrect readings when the engine warms up, causing erratic behavior. If the sensor is faulty, it can affect engine performance and trigger warning lights. Let me know if this helps or if you have further questions.

The sensor is OK, the problem persists.

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The sensor is OK, the problem persists.

Inspect the wiring harness for any signs of damage or wear, especially around areas that experience high temperatures or movement. A damaged harness can cause intermittent electrical issues. If you're unsure, it might be best to have a professional mechanic take a closer look. Let me know how it goes or if you have more questions.

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NISSAN

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QASHQAI