Q: 2004 crown Vic p71 sound of revving while in park at times in a high pitch

asked by on

Car is revving at a high pitch while in park. What's wrong?

My car has 119000 miles.
My car has an automatic transmission.

You need to check the big vacuum line that connects to the intake manifold and goes to the brake booster and the pcv valve. The big T fitting at the intake gets a hole in it and causes the vacuum leak and high idle condition.

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. 2004 crown Vic p71 sound of revving while in park at times in a high pitch

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: If I'm bypass the heater core will I still get heat in my car

Hello. No you will not still have heat. The heater core uses the hot coolant from your engine and radiates it into the cabin to produce the heat you feel from your vents. Also a bad heater core is a...

Q: Car rattling.

This engine rattling on acceleration may be a computer reprogram that would fix if the noise is what is called pinging or pre-ignition. The problem of the noise at idle and on acceleration may be another problem and I would...

Q: Smoke coming from blower/fan area

Hi there. The blower resistor and wiring is right there next to the blower and may be what is smoking. I recommend checking the blower wiring and check resistor and wiring to see if something is shorted out. If you...

Related articles

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.