Skip the auto shop - Our mechanics make house calls

Q: My car's gas pedal goes out and the car won't drive anymore if my RPM reaches the number 3 on the gauge.

asked by on

When I'm driving, if Im pushing the gas pedal to hard;/fast, and my RPM's reach up to the number 3, for example if I drive onto the highway... My car will herk really hard a couple of times, and the gas pedal will go out completely, and not allow me to drive anymore. I have to slowly let my car glide to the side of the freeway, or road. The brake works, but the car will not drive anymore. I am aware that I do need an 02 sensor, but I don't know if this the problem, or if I need an UPSTREAM, or DOWNSTREAM O2 Sensor.

My car has 190000 miles.
My car's transmission is unknown to me.

A: Hello, I would start by extracting the prob...

Hello, I would start by extracting the problem codes from engine management and the transmission as well. You don’t mention it, but surely the Check Engine light is on at this point. These codes will help determine a strategy for diagnosis and repair.

The leading candidate for the failure mode(s) you see is the throttle position sensor. This is the electronic connection from the gas pedal to both the engine and transmission. If it fails, there can be partial or complete power loss as you experience. Check Engine codes will also provide guidance as to replacing O2 sensors.

I would recommend having a Check Engine Light inspection completed by a mobile, professional mechanic, such as one from YourMechanic, to diagnose this problem, get an accurate assessment of damage and cost estimate for 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: Where is a yaw rate sensor located in a caprice 2008

The yaw rate sensor/lateral accelerometer on your vehicle is mounted beneath the center console and is held in place by two mounting nuts. To access the sensor, you have to follow the Factory Service Manual Procedure for removing the center console....

Q: Gauges not working

Hello. If only your tachometer and speedometer aren't working, the problem is probably with the instrument cluster itself. This is because these two gauges use completely different inputs. The speedometer gets its signal from the vehicle speed sensor (VSS), whereas...

Q: Ok so I got into a wreck last week and my head light is smashed and my bumber is pushed against my wheel is it driv

Hi there. I would say that it may be drivable without the bumper functionally. However, depending on your state's vehicle code regulations, it may not be legal to drive without a bumper. I would check your state's laws regarding this...

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.