04 Navigator PCM, and AC issues. - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Expedition Forum | Lincoln Navigator Forum
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford Expedition Forum | Lincoln Navigator Forum Forum for discussion of the Ford Expedition and Lincoln Navigator.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 04-20-2011, 10:55   #1 (permalink)
Registered User
 
Join Date: Jul 2010
Posts: 10
04 Navigator PCM, and AC issues.

I have a 04 Lincoln Navigator and have a few issues, any help would be great.

1st. Cruise not working and have narrowed it down to PCM, Do you think i can just have PCM flashed and it should fix it, or do i need a whole new one, and where do i get it besides dealer who wants $700 for it plus $100 to flash it. The only thing not working is the Cruise

2nd. AC blows cold but not cold enough especially when really hot out. i have check the freon and its full, any ideas, its cold, but not near like it should be. so i know its coming on.

3rd. I get the rattles when i first start the truck, especially after it has been sitting for a little while. getting worse as the temp is getting hotter? i have heard it could be valves, or timing chain, should i do anything to it, or just let it go.

thanks for the help.
soloblazer is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-22-2011, 00:39   #2 (permalink)
Registered User
 
AlwaysFord's Avatar
 
Join Date: Jan 2011
Location: Clarksville, Tn.
Posts: 113
Re: 04 Navigator PCM, and AC issues.

1st, I am having trouble understanding why the PCM, if defaulty, would only have one symptom, no cruise. I think we should figure out and rediagnose here if it is the PCM, because this is often a "go to" diagnosis. If a PCM were defaulty, in my legnthy experience with electrical systems, it would have multiple faults, seeing as how it has only but a few boards in it.
2nd, Check and see if the A.C lines are dripping anywhere, check your floorboards too. If they are, you need an evap canister, its clogged. If not, then you need to check and see if your condenser is clogged. You cant do that most likely, but that is the most common problem.
3rd, this is best helped with a video. Please put one up with a link or the video in the post, from very cold startup to driving down the road. Explain everything you can in the video without speaking over the noise of the problem if you can. We can help you better from there.
__________________
2001 Ford Expedition Eddie Bauer 4x4 (mine)
2003 Ford Focus SE (the wifey)
AlwaysFord is offline   Reply With Quote
Old 04-22-2011, 06:33   #3 (permalink)
Registered User
 
Join Date: Jul 2010
Posts: 10
Re: 04 Navigator PCM, and AC issues.

Well i have the ford speed control switch checking order, i followed it and the switches all test good and were workign within specs, so it said i need to change the PCM. is there something else i should check on that first?

i will check for water leaks on canister for ac and inside as well.

I can make a video and will do this weekend. thanks
soloblazer is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Expedition Forum | Lincoln Navigator Forum



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 19:32.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.