Skip the auto shop - Our mechanics make house calls

Q: car studders when it revs high

asked by on

My SUV has around 156,000 mileage. It idles normally, but has trouble starting. When I accelerate on the interstate, it revs high and stutters and doesn't pick up speed like it should when accelerating. A friend told me it might be the transmission or the fuel pump. As an expert mechanic, what do you think the problem is?

A: If the engine is revving high, but not pick...

If the engine is revving high, but not picking up speed especially in higher gears this is an indication of a transmission issue. The hard starting would not be attributed to the transmission, so another issue could be present, for example a fuel pump. What probably needs to be looked at is the residual fuel pressure and fuel pressure during a startup. If the fuel pressure is leaking, or the fuel system is partially clogged, this could cause extended cranking on start up or even a stumbling condition at steady cruise or acceleration. You may want to enlist the help of a mechanic, such as one from YourMechanic, who has the equipment and expertise to inspect why your car has trouble starting.

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・Save up to 30%

Get a quote

What others are asking

Q: Sometimes I have to jitter the key after I turn it all the way or the car will keep cranking or die just to get it started

A worn ignition switch assembly is the most likely cause. A heavy keychain may be putting excess strain on internal components, causing the ignition switch to wear out prematurely. A certified technician, like one from YourMechnic, will be able to...

Q: Possible lower ball joint problem based upon visual inspection, causing steering wheel vibrations

Hello. Steering wheel shimmy can be caused by a wide variety of issues, however worn ball joints are one of the more common causes. This is more likely if the vehicle is equipped with a lift kit, as a lift...

Q: Check engine light

Hello. I know how frustrating this can be. This needs to be a hands on inspection of the codes and system. We at YourMechanic can have a technician come to you and inspect your vehicle and definitively diagnose the Check...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.