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No fast idle 1984 crown vic cold start - 1984 Ford LTD

Posted by Anonymous on

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5 Related Answers

emissionwiz

Marvin

  • 85239 Answers

SOURCE: my 4.6 idles erratically.

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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chuck943

Chuck Martin

  • 783 Answers

SOURCE: 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.


Posted on Apr 02, 2009

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Matthew Boulden

  • 440 Answers

SOURCE: 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.

Posted on Jun 23, 2009

Anonymous

  • 76 Answers

SOURCE: cant start my crown vic 1998

ignition switch or starter relay or a wiring problem

Posted on Oct 03, 2009

Testimonial: "knows what he is talking about"

jun d

  • 14 Answers

SOURCE: My 99 Crown Vic acts like it isn't getting gas

Was the fuel tank drained and flushed when the fuel pump was replaced? By this time it will have collected a lot of junk and gunk. Without cleaning the tank, the fuel pump will simply clog and stop working again.

Posted on Oct 06, 2012

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1 Answer

Heater blows warm at an idle but cold when driving


Does it take a long time to warm up the engine?

Apr 11, 2013 | 2002 Ford Crown Victoria

1 Answer

I have engine from 1984 ford crown victoria. it isnota a302 ci. i was told it is a 351 windser when i brought it. how many engine size came with the 1984 crown vic? or what engine do i have?


Crown Victorias that year came with two engine options.
The regular Crown Vic had a 302 cubic inch engine.
The Police version had a 351W.
The 351W is a much better, stronger engine.
The easiest way to tell at a glance is to see if you can access the bottom thermostat housing bolt with a socket. If you can it's a 351W. If you can only get a wrench on that bolt, then it's a 302.

Apr 19, 2011 | 1984 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

1984 crown vic with new battery will not start. its getting fire but will not turnover.


check to see if any ignition fuses may have opened...check the starter solenoid(should be on firewall or near battery...you can take a large screwdriver and cross between the two posts on the solenoid to see if the starter turns..if not suspect the starter

Jan 08, 2011 | 1984 Ford Crown Victoria

1 Answer

Crown Vic wont turn over.


I would check the plugs around and on the engine. Also check to see if the inertia switch in the trunk was tripped, that cuts off power to the fuel pump in an accident.

May 11, 2010 | 1984 Ford Crown Victoria

1 Answer

1984 toyota corolla 1.6 engine. How do i adjust


Carbureted models have a fast idle cam on the throttle,It is a screw that sets against a movable part,called the cam,when the engine heats up,the cam will drop upon tapping the gas pedal.Set the carb,while the engine is cold,by tapping the gas pedal,then adjust the fast idle cam screw by turning it in,with the engine running.Start out by turning the screw in a full turn before starting engine so it will run,then adjust the screw as the engine runs.

Nov 26, 2009 | 1984 Toyota Corolla

2 Answers

What size tires were on the 1984 crown vic's?


It should be listed on the driver's door post. The correct size for your car is 215/70-15

Sep 30, 2009 | 1984 Ford Crown Victoria

2 Answers

My 1993 crown vic has trouble idleing properly when first started in the morning, either in the winter or the summer. Also if i try to take off real quick after the first start it laggs and runs really...


You may want to check the Vacuum lines if there are leaks. Check also Fast Idle Thermo Valve, which controls the idling at cold starts. If you have a carb, check the idle up valve.

Jun 03, 2009 | 1993 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

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