Skip the auto shop - Our mechanics make house calls

Q: Wrench light came on truck has no power and the rpms constantly get higher if put in park

asked by on

Got in truck after work and cranked it up went to pull out of parking lot and truck had no power a wrench light came up on dash and if put in park the rpms climb slowly took to auto zone and wasnt showing any codes if the truck is in motion and you put in nuetral turn the key off and then fire it up again it gain power for a second or two and then goes right back to limp mode

My car has 126990 miles.
My car has an automatic transmission.

Hi there:

The wrench light is service light indicator that alerts the driver that maintenance or service is due for a component. Most of the time, scan that Auto Zone will complete uses a basic scan tool, which does not factor or is unable to download all stored codes in the ECU. Anytime the vehicle goes into limp mode, an error has been detected inside the transmission or with one of the electrical sensors or components that are critical elements of the transmission system. It’s probably a good idea to have a professional mobile mechanic complete a check engine light is on inspection; even if the light is not activated, any stored codes caused by the transmission limp mode activation will be accessible and should pinpoint the source of your Ford Super Duty’s issues.

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
  • Home
  • Questions
  • Wrench light came on truck has no power and the rpms constantly get higher if put in park

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: Why engine check light comes on regularly

Hi there. It looks like you stated you've had a diagnosis, but no mention of an actual repair. What were the stored codes? What diagnostic steps were taken to determine the root cause? Was there a diagnosis or only a...

Q: drive train vibration

Hello there, vibrations are one of the most common faults with your 2010 F-150. You have done great so far in checking the drive shaft and u-joints as well as replacing the rotors and balancing the wheels. These are all...

Q: RPM goes up and down

The very first thing to do when you experience power loss or surging issues, or interesting gauge readings, is have your vehicle scanned for diagnostic troubleshooting codes. Your car can set these codes and not always illuminate the Check Engine...

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...
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...
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.