Q: The RPM is racing up and down when in park. Dashboard lights come on one at a time and then the car runs badly

asked by on October 19, 2016

My 2006 ford 500 rpm goes up and down in park/ when I shift is gear I got a hard shift like jump into gear. Check engine light comes on then the wench light comes then all the lights come on. and then the car does not want to excellorate. I cleaned the trollel body with trollel body spray. worked good one day then back to all the above. I have no money. Please answer my question about the car. Thank you

My car has 141000 miles.
My car's transmission is unknown to me.

Hi there. I understand your situation and concern. Fist we need the codes that are stored when the Check Engine Light comes on. Any diagnostic scan tool should be able to give us the codes that are set and give us the direction we need to diagnose what is happening to your vehicle. The computer and electrical systems in vehicles are more complex than ever and are more difficult to diagnose without the proper tools and training.

With that said, your RPM fluctuation could be the result of an idle control, air leak, misfire, etc.. If you cleaned the throttle body and it worked for a day, the idle air control valve could be faulty and need to be replaced. If the idle air control valve is shorting internally, this could be the cause of the lights coming on.

The transmission feeling like it jumps into gear could be enhanced by the drivability concern and may be an indication of a broken motor mount or broken transmission mount. A visual inspection of the mount bushings should reveal which one(s) are broken.

I strongly suggest a qualified technician perform an inspection for the idle and Check Engine Light to prevent the replacement of unneeded parts. YourMechanic has several available technicians that can assist you with an idle inspection, Check Engine Light inspection, and provide an estimate and direction of needed repair.

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

I have a Ford freestyle first it a has an helicopter noise wish i was made to understand its from the transmission if u put it on

Hi there. The wrench light typically indicates that maintenance or service is due on your Ford Freestyle. However, the "helicopter" sound does raise a few red flags, such as a damaged serpentine or fan belt, or possibly internal engine component...

What does the amber Check Engine Light mean

The amber Check Engine Warning Light is located on the instrument panel. When this light illuminates, there is a problem with either the engine control system, the throttle control system, or the electronic automatic transmission control system. Your vehicle should...

powertrain malfunction/reduced poer/electronic throttle control

If the "limp home" set due to a fault in a computer controlled throttle body, there is "generally" no way to bypass it because this is a category of "hard fault", that is a fault that simply has to be...

Related articles

P0374 OBD-II Trouble Code: Timing Reference High Resolution Signal A No Pulses
What What the P0374 code means The Powertrain Control Module (PCM) has discovered a problem in the high-resolution timing reference signal. What causes the P0374 code? There may be one or more causes for the P0374 code: A...
P0776 OBD-II Trouble Code: Pressure Control Solenoid B Performance
P0776 code means there is an abnormality within either the electronic pressure control circuit or solenoid often due too dirty fluids or faulty parts.
P0589 OBD-II Trouble Code: Cruise Control Multi-Function Input “B” Circuit**
P0589 means the ECM found a fault in the cruise control multi-function input B circuit, caused by faults within the cruise control electrical system.