Q: I just changed out my throttle body and now my car idles ok in reverse but stalls in drive. Could this have something to do with the throttle sensor?

asked by on February 14, 2017

My car goes right when i put it in drive but when i put it in reverse it just idles.

Car does not shift from park to drive Inspection $79.99 - $89.99 Get a Quote

Hello. Your issue is likely related to your transmission. Usually when a torque converter goes bad it will cause the engine to shut off when the transmission is put into gear. Torque converters are designed to spin freely until it’s commanded by the user to engage the engine to the torque converted to the transmission which would cause your wheels to spin. But if it’s torque converter is locked up the engine will not be able to produce enough power to turn it so the engine stalls out. That could be why it cuts off when you change gear. The torque converter is likely able to spin one way(fowards) but it likely has a mechanical malfunction where it can’t go in reverse. Sometimes a transmission fluid flush will get the torque converter moving in both directions again if it’s not too late. If you would like to void out the throttle position sensor as a problem a technician with a scan tool capable of live data viewing will be able to use that to test and observe the throttle position sensor.Or if a scan tool is unavailable a multimeter can be used.

Hi there. If you are stating that your car will not go in reverse, and that this occurred after you replaced the throttle body; it’s very difficult to pinpoint what might have caused this without being there to inspect your vehicle. Sometimes when a major component like a throttle body is removed, multiple sensors and electrical connections are loosened or taken off. It is possible; although highly unlikely that a transmission sensor may be loose or damaged. The only way to know exactly what’s causing this issue is to have a professional mobile mechanic complete a transmission inspection or taking your Ford Explorer to a transmission specialist.

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

What does the engine coolant temperature Warning Light mean?

The engine coolant temperature Warning Light is located on the instrument panel. This light illuminates when the temperature of the engine coolant has risen to a dangerously high temperature. To avoid serious damage to your engine, stop your car as...

How do I mute?

To mute the sound system, simply press the Mute soft key. Press it a second time to unmute the system.

Truck barely starts.

It sounds like you have two separate issues. First it seems like you have a drain on your battery, or the battery is simply just bad and due for replacement. Your second issue of jumping in place and eventually stalling...

My Ford f150 has a misfire on #4and#7 I checked the coils and plugs but they seem to be firing what else do I need to do

In order to isolate the cause of the misfire you will need to do an engine compression and leakdown test to make sure the compression is good and no valves are burned. If compression test is good on all cylinders...

New front tires and aligned, but tires are different sizes

I would have the tire size double checked as a 60 series tire will generally be taller if the profile number does not change. The tire light is probably due to a failed tire monitoring system initialization which should have...

Barely any power when I step on the gas pedal, any ideas?

Hello. From the symptoms you describe it would appear that your vehicle is experiencing an issue that is putting it into some sort of limp mode. Limp mode is activated when the computer detects an issue that could potentially damage...

Truck won't turn over

The battery should be load tested by a professional. Load testing can only be reliably performed on a fully charged battery. If the battery passes a load test be sure it is NOT a marginal pass in which case you...

Car hesitates when I put my foot into it.

Hi there, thanks for writing in. I'd be happy to help. This is a common symptom of a failing mass air flow sensor or throttle position sensor. A mass air flow sensor is a unit that monitors the air flow...

How do you adjust the steering wheel?

Your car’s steering wheel is designed to adjust. That gives you the ability to customize your sitting position so that you’re comfortable and can easily reach both the steering wheel and pedals no matter how tall or short you might...

Related articles

How to Buy a Classic Ford Vehicle
When it comes to American-made vintage vehicles, few brands are more collected than Fords. Indeed, many Ford models do embody the adage “things get better with age” – at least in terms of value. In most cases, once a Ford...
How Are Car Sensors Protected From Heat and Debris?
Reliable car performance depends on sensors to collect and relay data. Some car sensors can be cleaned to make them work reliably again.
A Buyer’s Guide to the 2012 Ford Expedition
The The 2012 Ford Expedition has ample room for passengers and cargo, while still being able to tow anywhere from 8,900 to 9,200 pounds. The Expedition has two-tone exterior packages making it stand out against its competitors. Along with that,...