Q: My 2004 Nissan 350z hesitates when accelarating

asked by on March 20, 2017

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

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

Coolant leak coming from behind the radiator

The coolant leak can only be pinpointed after an inspection but a leaking hose in that location would not be unusual. Coolant leaks can sometimes be either a cause, or a consequence, of overheating. Be sure not to drive the...

Can I have my jump starter plugged in to an outlet as if i was charging, then connect it to a batter and turn it on? Will that cha

If the vehicle battery happens to be more than 5 years (60 months) old, don't bother fooling with it. Buy a new battery and be sure the new battery is fully charged by the store before you install it, otherwise...

Crank no start

There are several possible reasons for a vehicle to crank and not start. A bad fuel pump, clogged fuel filter, faulty injectors, bad ecu, failed ignition coil, or a malfunctioning sensor. It will first be necessary to figure out if...

Related articles

A Buyer’s Guide to the 2012 Nissan Armada
If If you need an SUV that lives up to the name “full-size SUV”, the 2012 Nissan Armada just might be your best option. With up to eight passenger seating and a 317-horsepower V8 engine that hauls 9,000 pounds with...
The Best Used Cars to Buy If You're a Gardener or Landscape Architect
Gardeners Gardeners and landscape architects need to haul around quite a bit of gear. As a gardener, chances are you will need to transport a variety of mowing equipment, along with smaller implements. You may also need to move shrubs,...
The Best Used Cars to Buy If You’re an Interior Designer
As As an interior designer, you need to transport a great many different items, including fabric, paint and wallpaper samples and sometimes even furniture items. You probably don’t handle overly large loads very often, and when you have to, you’ll...