Nissan Repair Questions? Ask a Mechanic for Answers ASAP
Hi, How are you?I'm Shabaz, one of the automotive experts, I'm sorry you're experiencing problems with your car, I will do my best to help you today.
Firstly, what is the engine size and fuel type?
Starting problems or extended cranking is caused by 1 or more of the following: 1 or more glowplugs not working correctly, faulty crankshaft position sensor, weak injector, weak battery or starter motor.
I would recommend getting the crankshaft sensor replaced first as this sensor is the most common cause of starting difficulties.
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Do you have any smoke coming from the exhaust? You need to have a look near the exhaust manifold and turbo, I think what you smell is oil burning. It's difficult to diagnose a particular smell, are you sure it's not unburnt diesel? You can open your filler cap and smell that to see if it smells similar.