Question about 1997 Ford Crown Victoria
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.
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
a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jul 30, 2016 | Ford Cars & Trucks
Mar 12, 2015 | 1997 GMC Safari
Feb 23, 2012 | 1985 Ford Crown Victoria
Aug 24, 2011 | 1997 Ford Crown Victoria
Feb 18, 2011 | 1997 Ford Crown Victoria
Jun 13, 2010 | 1996 Ford Crown Victoria
Jun 23, 2009 | 1998 Ford Crown Victoria
Apr 02, 2009 | 2007 Ford Crown Victoria LX Sedan
603 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: