Q: Code P0720 and truck does not shift normally.
Gear shift does not shift normally. I have to hold the overdrive button. A few days ago, the shifter would not shift out of 1st gear. The code it gave me was P0720 and all of the sevice lights came on when it first started doing this.
Hi there. The code that you are getting is for the output speed sensor of the transmission. I change quite a few of these as they are a common issue. I would have this replaced first and clear the codes. If the problem persists then you may have an internal transmission failure that is pending. If you are not comfortable with this repair I would enlist the help of a certified mechanic, like one from YourMechanic, who has the tools and knowledge to do this.
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
What others are asking
Brake pedal broken
Hello. A brake pedal going to the floor is a sign of a bad master cylinder or leaking hydraulic fluid. I suggest having the brake system inspected by a technician. Preferably a technician who is ASE certified in brakes because...
Automatic transmission problem
Hi, thanks for writing in. This is likely related to the transmission control module which directs the transmission to shift up and down at specific points relative to engine RPMs. If you would like, consider having an expert automotive technician...
My brake light stays on - 2004 Infiniti QX56
Hi there. Check the brake pedal brake light switch (https://www.yourmechanic.com/services/brake-light-switch-replacement) to see if the contacts are closed (meaning the switch is engaged) with the pedal all the way up. It is possible that the brake pedal has moved down a...
It's turns off while I'm driving
Hi there. Sometimes error codes don't always show up when a mechanical or sensor issue exists. A professional mechanic will usually download any trouble codes or engine faults (different than the OBD-II Codes you're looking for); which will direct them...
Starter is good but not turning over when using the key.
This may be an issue of a faulty starter relay or potentially a bad ground connection to the starter. The starter relay directs power from the battery to the starter solenoid which then engages the starter when you turn the...
Truck sputters at 1500 rpms
In some cases, an OBD-II code like you've described can be triggered by the electrical harness attached to a sensor. So, it's possible that the reason you're having this idle problem is due to the harness being faulty as opposed...
Car will turn over but won't start after over heating. Coolant was boilng over, white smoke from exhaust.
Hello, thank you for writing in. Several things will need to be done, or can be done, to help diagnose the issue. Start by having the vehicle scanned for diagnostic codes, checking the oil, and checking the coolant. Both fluids...
Evaporative Emission Control System Purge Control Valve Circuit Malfunction how to fix and where is it ?
Hi there. The best advice I can offer is for you to complete one of two things. First, it would probably be best to have a professional mobile mechanic come to your location and complete a check engine light inspection...
Flex pipe leak
The flex pipe broke due to the motor mounts are bad and mounts should be repaired first and then an exhaust shop should be able to just replace the flex pipe for you.
Related articles
5 Essential Things to Know About Luxury Vehicles
There’s There’s something to be said about the looks and offerings of luxury vehicles, but appearances can always be deceiving. If you’re considering buying a luxury car, there are a few things you need to know before you make your...
Symptoms of a Bad or Failing Support Bearing
Common signs include unusual noises and shuddering during acceleration.
How to Replace a Transmission Oil Pressure Switch
A transmission oil pressure switch relays measurements from the pump. If the filter is clogged, this switch puts the transmission into limp mode.
Browse other content
Estimates
Cities