Skip the auto shop - Our mechanics make house calls

Q: The throttle keeps sticking at average speeds

asked by on

The throttle in my van keeps sticking. I used WD-40 to spray the linkage and pedal end of the throttle cable. It improved it somewhat but hasn't solved the issue. While driving at 40-50 mph, it would still start sticking. It sometimes happens while I'm first trying to accelerate. Do you have some advice how to fix this?

You may have a damaged throttle body or a faulty throttle position sensor. Both of these issues can make you feel the same symptoms as a sticking throttle. I would recommend having the throttle body and throttle position sensor inspected by a qualified professional. This test will include a visual inspection of the throttle body as well as testing the TPS for proper function using the manufacturers recommended procedure. Once the faulty part has been determined, replace it as necessary to resolve your issue.

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

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: Every time I accelerate I hear air either being sucked in or blown out from somewhere under the hood.

Hello. Rushing air noises during acceleration could be considered a normal part of operation. Even more so with high displacement engines, that rapidly ingest and move a lot of air and gases both through the intake and exhaust systems. If...

Q: brakes won't hold fluid

The rear brakes on the 2000 Villager are drum brakes operated by a wheel cylinder that is bolted to a steel backing plate and covered by the brake drum. If there is no visible external leak, yet brake fluid is...

Q: Warning lights come on and van stops accelerating

As you have found, this can be a nasty problem to solve, since many vehicle systems that affect this outcome are interconnected: Traction Control (TCS), ABS, etc. One approach that may still be worth pursuing (that may not have been...

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...
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...
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.