Question about 1997 Ford Crown Victoria

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My 4.6 idles erratically.

1997 Crown Vic. 4.6 ltr idles too high then comes back to normal and then back high again. cycling every 10 seconds or so.

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Try the following, if that doesn't correct it u may need to replace the air bypass valve.
Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), they get full of gunk over the miles and cause idle issues (stalls, low idle) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove the air intake hose to the engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the battery for 5 minutes, then restart and complete a number of mixed driving cycles, town, freeway, stop and go etc., after a few days the problem will go away as the system will relearn to the clean intake.

Posted on Feb 17, 2009

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Stop 2006 Ford crown vic fro m beeping


Austin Parker... hello,

When car electronics DECDE to act strangely... it is ALWAYS a good time to check for BATTERY TERMINAL corrosion...
(If you are not comfortable playing with highly corrosive materials... IT'S SERVICE STATION TIME.

So...
You have removed the key... The car is fully in PARK...
BRAKES applied... Lights all turned off... (no lights on dash?).

Repeat your last exit cycle...

Get back in start the car... Make sure everything functions as normal Set your brake... Park, off the lights (everything)...

Put it in gear...

Still beeping... (write down your radio settings)

Time to do a Bill Gates... (hard power cycle)
Disconnect your negative battery lead
and take a 10 minute break...

Reconnect battery... start car & park it again... OK?

ELSE...

If it resumes beeping it will be time to beg, borrow or buy that OBD Reader you always wanted any-way!

HOPE this helps

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Sounds like the speedometer head. its cheaper to actually replace it rather than repair. find one close to your mileage . usually around $50.00

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My 1985 crown vic idles too high, how can I adjust it?


You can't adjust it, it is controlled automatically by a computer, if the idle is high there is a problem with the system.

Feb 23, 2012 | 1985 Ford Crown Victoria

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1997 Crown Vic. Will crank, but will not idle.Have to keep foot on gas.


have a 97 crown vic,
in warm weather it idles fine and run fine
now that its cold I have to hold at high idle to have warm up
for about 10 mins.
if I just start it the engine will die with out me holding on foot on the gas

Feb 18, 2011 | 1997 Ford Crown Victoria

1 Answer

I have an ex police crown vic 1997 it appears to be overheating if i leave the ac running for about 20 mins. i changed the fan clutch/ radiator, where should thedial actually be?


it's funny to be reading about a similar situation i'm having. i also have a '97 crown vic, bought at a municipal auction.
of course, running the a/c should put more load on the engine and produce more heat. but not enough to be concerned about. if you car seems to be overheating, the thermostat could be to blame.
while diagnosing a different matter, i noticed the coolant temperature at one point reached 217 F. i'm going to replace the thermostat as it may only be opening partialy. my temp gage is normally just above the half way point between the high and low marks. it hasn't gone any further towards the high temp mark to be alarming.
where is the needle pointing on your gage? have you replaced the thermostat?

Jun 13, 2010 | 1996 Ford Crown Victoria

1 Answer

1988 Ford Crown Vic Strange Idle


When you turn the key on does the check engine light come on? If not it may be burned out. It sounds like a MAP sensor or an O2 sensor is bad. I would suggest taking it to autozone as they do free diagnostic and seeing if a code comes up. If it is a sensor it should, if not it may be the idle sensor not reading right in the ECU. More than likely it is one of the sensors though.

Jun 23, 2009 | 1998 Ford Crown Victoria

1 Answer

2007 crown vic 4.6 l idles high on startup


This sounds like a normal condition.What happens is the cold start emission reduction component monitor(software program in the computer) is running.
Cold Start Emission Reduction Component Monitor
The Cold Start Emission Reduction Component Monitor was introduced for the 2006 MY on vehicles that meet the
LEV-II emission standards. The monitor works by validating the operation of the components of the system
required to achieve the cold start emission reduction strategy, namely retarded spark timing and elevated idle
airflow.
When the CSER strategy is enabled, the idle air control system will request a higher idle rpm, elevating engine
airflow. While this CSER elevated airflow is requested, the low airflow test compares the measured idle airflow from
the MAF sensor to the commanded idle airflow from the idle air control strategy.


Apr 02, 2009 | 2007 Ford Crown Victoria LX Sedan

1 Answer

2003 Crown Vic Misfiring after acceleration


I just came up with that exact issue in my 2003 with 98K police crown vic. And the last time I had this issue in a 2001 police Crown vic it was the crank shaft position sensor. A $20 part and about 30 mins to put it in. located near the bottom of the engine. I had to un bolt the A/C compressor and push it out of the way a few inches to get to the sensor. If you have about 100K mile on it and its an idled heavy police car, this sensor should be changed out anyway. It can leave you on the road dead and some dealers have a hard time find out whats wrong as the OBD 2 does not see it as a problem when it goes bad or becomes touchy as I think mine is.

Jan 12, 2009 | 2007 Ford Crown Victoria LX Sedan

1 Answer

Shuts down


I would check the intake air temperature sensor

Jul 14, 2008 | 2001 Pontiac Grand Am SE

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