[oxford1965]

Help. I have a 2005 Xtrail, that cuts out when the engine gets hot. This has resulted in me breaking down on the M'way, when I have gradually lost power, breaks, steering wheel the lot.
The mechanic thought it was the insulation?? around something underneath, meaning one of the sensors underneath is picking up it is overheating, telling the engine to cut out.
Sorry to be vague, cars not really my thing. Many Thanks for the reply.

 

[rogoman]

Perform an ECU code readout with a portable scan tool. There may be some fault codes that are set which can help you to diagnose the problem. Most auto parts stores will perform a free code readout for you.

 

[quadraria10]

Its hard to tell from what you are describing. My guess is that you are overheating when driving on the highway at speed. If so, its probably your radiator that is blocked and should be replaced asap. Hopefully you havent continued to drive it as you risk damaging your head gasket and overheating your transmission if you have an automatic. You might also research the crank and cam sensors. As Rogoman pointed out, have your codes read. Good luck.

 

[quadraria10]

Out of curiousity do you know the last time the coolant was changed?

 

[Andrew winsor]

Help. I have a 2005 Xtrail, that cuts out when the engine gets hot. This has resulted in me breaking down on the M'way, when I have gradually lost power, breaks, steering wheel the lot.
The mechanic thought it was the insulation?? around something underneath, meaning one of the sensors underneath is picking up it is overheating, telling the engine to cut out.
Sorry to be vague, cars not really my thing. Many Thanks for the reply.

Hey is there a chance the thermostat was charged and it was aftermarket? They need the nissan thermostat mine did the same

 

[hovell.clarke]

Help. I have a 2005 Xtrail, that cuts out when the engine gets hot. This has resulted in me breaking down on the M'way, when I have gradually lost power, breaks, steering wheel the lot. The mechanic thought it was the insulation?? around something underneath, meaning one of the sensors underneath is picking up it is overheating, telling the engine to cut out. Sorry to be vague, cars not really my thing. Many Thanks for the reply.

Do you have to wait until the engine cools down then it will start???? if so I have the same issue?

 

[linda john]

Help. I have a 2005 Xtrail, that cuts out when the engine gets hot. This has resulted in me breaking down on the M'way, when I have gradually lost power, breaks, steering wheel the lot.
The mechanic thought it was the insulation?? around something underneath, meaning one of the sensors underneath is picking up it is overheating, telling the engine to cut out.
Sorry to be vague, cars not really my thing. Many Thanks for the reply.

10 Common Causes of Car Overheating?
Leaks in the Cooling System. ...

• Incorrect Coolant Concentration. ...
• Loose Coolant Hose Clamp. ...
• A Faulty Thermostat. ...
• Clogged or Cracked Car Radiator. ...
• Worn Out or Burst Hoses. ...
• Bad Radiator Fan. ...
• Loose or Broken Belts.

 

[DFSpencer]

In reference to potential thermostat problems you should know that the T-30 2.5 L engine (QR25DE) actually has two thermostats, although Nissan refers to one as a "thermostat" and the other as a "water control valve". The 'thermostat' is in the housing that the lower rad hose connects to, just behind the first catalytic converter unit. The OEM is a 180F (82C) unit. However, the 'water control valve', a critical component, is inside the 'water control valve housing' that is technically at the back to the engine, so at the right when you look in from the front. The upper rad hose connects to that housing, along with connections to the oil cooler, the cabin heater and the small heater in the electric throttle actuator. That valve/thermostat is a 203F (95C) unit. The service manual has a flow diagram that illustrates the various coolant flow patterns in the engine and it is a mind-boggling diagram. In the case of the original poster's issue if the 'water control valve' has failed and stuck shut that would lead to overheating, although that valve when closed does not block all coolant flow back to the radiator. However, the temperature sensor is positioned in the 'water control housing' such that it should give an indication of overheating, assuming obviously that part is functioning properly.