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Troubleshooting T31 2008 2.0 dci cold starts

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ELDORADO4TRUCK
Posts: 26
Joined: Mon Feb 02, 2026 8:59 pm

Greetings to everybody, My vehicle is a 2008 JDM T31 2.0 dci X-trail. As one might expect from a Canadian winter, it can get rather chilly. However, I've never had any problems starting it, not even in temperatures as low as -25°C.

More recently, I've noticed that it sometimes won't start when left outside in cold weather. Even in -5°C temperature, if I leave it outside for a couple hours, it won't start, but when I have it indoors, it starts normally. Before I turn the key to start the engine, I have been patiently waiting for the glow plug light to go out. The repairman I took it to said the glow plug relay was faulty, so I just went ahead and changed it. To make matters worst, it did not resolve anything, and now I find myself exactly where I began. Has anybody else seen this problem previously?


Even though the shop I took it to checked my glow plugs and claimed they were fine, I had to replace the relay since they weren't getting electricity.
AndrewGuidon67
Posts: 44
Joined: Mon Feb 02, 2026 8:44 pm

Is the garage supposed to have removed the glowplugs to check their resistance, left them in, or looked at them with a 12v from a battery to make the tip glow? If you happen to have a multimeter on hand, you can easily check the resistance of a glowplug to make sure it's not faulty. Changing them out for the original 2008 ones is always a good idea, and NGK is the best brand.A major factor affecting the current passing through the cables is, of course, examining the terminals for corrosion.Until I happened to glance over the glowplug relay and noticed the 12v feed wire was green with corrosion and barely holding on, I ignored my truck's reluctance to start in cold weather.The truck started right up after I severed the cable and reattached a new terminal to the end that had been attached to the relay.A fresh set of NGK glowplugs was also installed.From the fuel filter to the fuel primer bulb....are also able to play these.In any case, best of luck to you.
ELDORADO4TRUCK
Posts: 26
Joined: Mon Feb 02, 2026 8:59 pm

When I get a moment, I will personally verify them, but I appreciate the suggestion very much.
TotalRecall4Cars
Posts: 38
Joined: Mon Feb 02, 2026 8:52 pm

Excellent power source, The overflow rail valve and injectors comprise the system.
Due to the short on-time (3-5 seconds) and high voltage (7V) of the glowplugs, the relay is frequently considered defective. You can leave the old 11-12v plugs on for 15-30 seconds.
Do Canada have contemporary tiny diesels?

Further to what leafy mentioned, inspect the cables for signs of rodent damage and green chrusties.
ELDORADO4TRUCK
Posts: 26
Joined: Mon Feb 02, 2026 8:59 pm

The response is really appreciated. Canada does have smaller diesels, but you won't see them very often.
Loonie4cars
Posts: 37
Joined: Mon Feb 02, 2026 8:49 pm

In my experience, inspecting the heater plug, relay, and engine water temperature sensor above the gearbox solved the problem. If the light on the heater plug goes out suddenly, it could be because of a faulty reading that causes the ECU to believe the engine is warm.
AndrewGuidon67
Posts: 44
Joined: Mon Feb 02, 2026 8:44 pm

Quickly and easily, in just three seconds, I already indicated that the 7V system is quick. There are even some that have a 4-volt plug.
EvestineBeetle
Posts: 24
Joined: Mon Feb 02, 2026 9:03 pm

Remain in the following sequence:
The first phase


Please inspect the glow plug fuse; it is likely needing repair.
Part 2

During the preheat, take readings at the glow plug rail.
Phase 3

Check the condition of the battery.
The Fourth Step

Reading of the coolant's temperature scanned
The fifth step

Verify the area around the engine and battery blocks.

Additional Tips for Cold Climates (Canada)

Excellent for diesel engines:

Block space heater
Battery cover
Oil for winter, 0W-30 or 5W-30.
Diesel for the winter
ELDORADO4TRUCK
Posts: 26
Joined: Mon Feb 02, 2026 8:59 pm

I appreciate you taking the time to provide these guidelines and words of wisdom. Would you happen to have any idea what time the glow plug fuse goes off?
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