Q: I have dodge 2500 5.9 diesel 24 valve, when idle it's fine and when speed up to 60 it lose power then comes back

asked by on June 05, 2017

When start my truck idles fine when get down road up to 50 or 65 it sometimes drops throtle when trying to maintain speed limit ...then when comes back if let off the pedal and push on it... I just replace maps sensor and still doing it

My car has 293675 miles.
My car has an automatic transmission.

Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the gas pedal. Based upon the inputs from the sensor reading your foot’s position on the pedal, the ECU then makes the direction to supply more or less fuel to the motor. When this sensor is not working properly, this can cause intermittent responses when pressing the gas pedal. I would recommend having an expert 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

How much to replace trans mount on a 2004 Dodge Neon? How long will it take?

Replacing just the transmission mount takes roughly an hour. The mount is probably less than $150. You can obtain a detailed, written quote via YourMechanic's engine/transmission mount service page or by simply calling the main customer service number. If one...

Car vibrating and shaking with the smell coming from the muffler

The awful smell your referring to is probably the catalytic converter being damaged. When there is a severe misfire, like what you're describing, the catalytic converter will deteriorate, resulting in a sulfur smell. Of course, the misfire will also illuminate...

What is the cost to have an engine replaced? How many hours labor? 2001 Toyota Prius

Hello - unfortunately, this is not a service YourMechanic offers at this time. Thanks for thinking of us however!

Related articles

The Best Used Cars to Buy If You're an Undercover Cop
If If you're an undercover cop, when you choose a used vehicle, your main purpose is to look like anything but a cop. That means, of course, that an unmarked Crown Victoria is probably not the wisest choice. We’ve...
A Buyer’s Guide to the 2010 Dodge Viper
2010 2010 was the last production year for the Dodge Viper before it took an extended leave of absence from the automaker’s lineup. It would debut once more in 2013. The 2010 Dodge Viper is a two-seat roadster (convertible) and...
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...