Q: My 2004 Nissan 350z hesitates when accelarating

asked by on

Recent upgrades or new parts: Iridum spark plugs, fan belts, new mass air flow sensor, PCV valve. The car hesitates when accelerating. However, once it's in the open road it drives ok (not great). I've taken out the K&N filter and placed a normal paper filter in (not much different). The car was driving at cruise control and going uphill it stalled slightly and took itself off of cruise control. My mechanic ran it through the PC (diagnostics) and said that everything is running fine.

My car has 78250 miles.
My car has a manual transmission.

There are a number of things that may cause the car to hesitate when accelerating such as low fuel pressure, a dirty or faulty mass air flow sensor, clogged or dirty fuel injectors, a faulty throttle position sensor or potentially a bad fuel pump. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My 2004 Nissan 350z hesitates when accelarating

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: 2004 Chevy Express makes noise while idling

The first thing you'd want to check is the power steering. A lot of times, they groan on those. If it's not the power steering, a lot of times it would be the transmission. If it's coming from the transmission,...

Q: Engine Shaking after low oil

It is very possible you have damaged the crankshaft and camshaft bearings. Ideally, the person changing the oil should have taken a sample of the oil that came out first to see if there are metal shavings in the oil....

Q: Car will crank but won't start - 2006 Ford Taurus

Since you did all this work then you should be able to check the fuel pressure and engine for spark getting to the spark plugs. If you have spark and fuel pressure, then you will need to check the fuel...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...