2004 F150 5.4 COP + AC Compressor Issue - Ford Truck Enthusiasts Forums
Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150
Sign In
Register Forgot Password?

2004 - 2008 F150 2004, 2005, 2006, 2007 and 2008 Ford F150's with 5.4 V8, 4.6 V8 or 4.2 V6 engine

2004 F150 5.4 COP + AC Compressor Issue

LinkBack Thread Tools Search this Thread
Old 05-23-2012, 07:56 AM
dbarton8541 dbarton8541 is offline
New User
Join Date: May 2012
Posts: 1
dbarton8541 is starting off with a positive reputation.
2004 F150 5.4 COP + AC Compressor Issue

The truck stutters, rpm's drop slightly and Compressor stops blowing cold air. It did this intermittingly for a day usually around the 55 mph mark, but no always, somtimes slower sometimes faster. No engine light came on. Next day engine light comes on and gives a PO352 Code. I played w #2 COP, connected/disconnected etc, and helped the situation but didnt solve it. I'm puzzled about how the AC Compressor is related to the COP issue. Will the PCM shut off compressor when a cylinder is missing? Was hoping to get some expert opinions. Thanks in advance for any insight you can provide.
Reply With Quote
Old 05-23-2012, 10:42 AM
Papa Tiger's Avatar
Papa Tiger Papa Tiger is offline
Posting Guru
Join Date: Mar 2012
Posts: 1,077
Papa Tiger has a good reputation on FTE.Papa Tiger has a good reputation on FTE.
I would look to the spark plugs first, and take a compression test while at it. Faulty spark plugs brings about COP failures many times. Look to temp sensor faulty if motor going into limp mode. Check your air induction to make sure it is all connected tight. The change of airconditioning may be a loss of Vacuum, with the doors turning to defrost?
F150's my best friend.
Reply With Quote
Old 05-23-2012, 10:42 AM

Similar Threads
Thread Thread Starter Forum Replies Last Post
1999 7.3l AC issues cokewithvanilla Super Duty & Heavy Duty 0 05-02-2015 09:32 PM
Overdrive OFF light code and misfiring COP s kraylake Excursion - King of SUVs 0 03-26-2015 07:19 AM
7.3 diesal AC compressor issue dscwxwork 1999 - 2003 7.3L Power Stroke Diesel 7 09-18-2010 10:30 AM
COP not getting juice laddti Expedition & Navigator 10 02-10-2010 11:32 PM
5.4 misses, AC comp shuts off Mike Johnston Super Duty & Heavy Duty 10 08-17-2006 03:02 PM

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 2004 - 2008 F150

04, 150, 2004, 2005, 54, ac, activates, buy, compressor, cop, cops, f150, ford, jump, v8

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

All times are GMT -5. The time now is 09:49 AM.


Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup