Skip the auto shop - Our mechanics make house calls

Q: My 2004 Nissan X-Trail is intermittently stalling at traffic lights and stop signs.

asked by on

I drive a 2004 Nissan xtrail. My car has started to intermittently stall when I am stopping at traffic lights and stop signs, usually on a slight or steep hill. It has been doing this for some time and is progressively getting more frequent. I have had the fuel pump, throttle, crank angle sensor and battery replaced as a result, however the problem continues to occur. When I first bought the car there was a hole in the O2 sensor (or exhaust manifold) which caused a high pitched noise. A mechanic welded this hole to stop the noise so I'm wondering if this may have contributed to the problem, if it was damaged. If you have any thoughts on a solution that would be greatly appreciated. Scott

My car has 280000 miles.
My car has an automatic transmission.

A: Hi there. Having the exhaust manifold repai...

Hi there. Having the exhaust manifold repaired should not have contributed to the engine stalling. Assuming, the Check Engine Light is not coming on, leads me to believe the ECM (engine control module)/computer is not recognizing the fault. As you already know, replacing components without proper diagnoses, can be expensive and time consuming without resolution.

The engine stalling, could be the result of a faulty IAC (idle air control) valve, a faulty MAF (mass airflow) sensor, incorrectly calculating the incoming air to the engine, and/or an air intake leak. To reduce the possibilities, I recommend having your vehicle’s stalling engine be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Delay speed, weakness to climb a slope. 2004 Jeep Liberty

Hi there - first check is for any problem codes, whether the Check Engine light is on or not. I would bet that either the thief damaged something else not apparent, or something was not re-connected properly when the vehicle...

Q: How do I skip an iPod track?

When listening to the iPod through the sound system, you can easily skip tracks. To skip to the next track, press the Up or Right button (depending on your model) for less than 1.5 seconds. To restart the current track,...

Q: Crankshaft position sensor keeps burning out

It's been my experience that typically when I have run across a situation where a sensor keeps failing in the same way, it comes down to one of two situations. Either there is a problem with the wiring/connector for the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.