Q: When i put my Car in drive or reverse i lose power but in park or netural the voltage is normal

asked by on

I have Replaced my Alternator , My Battery , My Throttle Body and the Alternator Plug and my Belt just in case it was Slipping and my Battery light still comes on. I have recently took the car to have the Alternator tested and the battery tested and they are good, My Check Engine light Recently came on and i have a air flow leak which i have yet to find. When the car is in Park or in Neutral the voltage is strong but when the car is in Drive or Reverse the Voltage drops, I have replaced everything i Know Could u Give me the next Step or some advice Please

My car has 192000 miles.
My car has an automatic transmission.

Hello there, many faults will cause your battery light to be on when your 2005 Ford Crown Victoria is in drive or reverse. You have done well in replacing parts so far, but the vehicle must be diagnosed fully before any more parts are replaced. When an air leak is present it can cause the idle to fluctuate, if the idle is to low this can cause alternator output to decrease. Other likely issues are a wiring harness issue, battery cable, or the alternator fuse. A qualified Technician such as one from YourMechanic will be able to diagnose your low alternator output and make any repairs required.

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
  1. Home
  2. Questions
  3. When i put my Car in drive or reverse i lose power but in park or netural the voltage is normal

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: Tire is stuck on the truck, I can't change my tire because the tire won't come off

Hi, thanks for writing in. The rim has a centering part that will cause it to stick to the hub sometimes after being on the truck for a long time. You will need to remove lug nuts and after making...

Q: Why won't my truck start?

Hi there. Check the battery cables and see if they are tight and clean. If the battery cables are tight and clean, then check the ground wire to the fuse box and see if its loose or corroded. If the...

Q: Q: Charging system failure???????

It depends on the tools you have. If you have a voltmeter, then you can check the voltage at the battery posts when the engine is running. When you do this, make sure that you turn on the normal accessories...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...