Skip the auto shop - Our mechanics make house calls

Q: Car won't drive over 35 mph

asked by on

My car won't drive over 35 mph in all five speeds.

Hi there! Judging by the symptoms, it sounds like the issue may stem from either air metering and fuel delivery, or a badly stretched throttle cable:

Over time, the cable that connects the throttle cable to the throttle body can become stretched, resulting in less throttle plate movement when the pedal is applied. With a smaller opening, the engine cannot take in enough air to meet the power demand to move the vehicle faster.

I would suggest having an experienced mechanic, like the ones at YourMechanic, run a diagnostic designed to address acceleration issues, then recommend any necessary repairs.

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: Clutch bad in vehicle

Hello. From the symptoms you provided, it appears that your clutch is worn-out, or the friction material has come off the clutch disc. This is a major job that requires a qualified technician who does heavy duty work to replace...

Q: Car making a noticeable noise

Hi. Typically noise from a spinning part on your car is due to either a pulley or belt. If the noise is squealing that signifies that a new belt is in order. I would suggest having a certified mechanic, such...

Q: Won't start but all lights and radio work

Hi, thanks for writing in. I would start with testing your battery with a multi meter. Even though your lights and radio are working, your battery may still not have enough voltage to start the car. Good batteries hold a...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.