Power Hungry Performance Forum  

Go Back   Power Hungry Performance Forum > Ford F-150, Expedition, Navigator, Blackwood, Mark-LT, SVT Lightning and H-D Editions (Disabled) > 1997 to 2003 F-150

1997 to 2003 F-150
4.2L, 4.6L, and 5.4L equipped F-150s.


Reply
 
Thread Tools Display Modes
  #1  
Old Sun, September 18th, 2011, 12:56 PM
bigred97f150 bigred97f150 is offline
Whopper Junior
 
Join Date: Sep 2011
Posts: 2
bigred97f150 is on a distinguished road
Default May need tuning for Cams?

Hey guys I'm new to the forums and I've got more of an inconvenience than a problem. I recently bought a 2000 f150 5.4l with 212,000 miles on it. The motor was perfectly fine but I had parts laying around and a short block built that I wanted to use. Long story short the short block had problems apparently and broke a rod so it came back out and ended up rebuilding original motor. Anyway I replaced the cams with these http://www.summitracing.com/parts/CCA-102200/
and installed obx stainless longtube headers. I'm also running maggy 94106 high flow cats and 2 1/2 true duals no mufflers. The truck seems to run fine other than when you try to start and take off with it cold. When I start the truck cold it revs up to about 1200 or so then dies sometimes and sometimes it will catch itself and not die. Every time I start it cold, though, it will usually die when put in drive or reverse if I don't give it gas immediately. As you can imagine that can be inconvenient of I'm in a tight space. When the truck is warm is starts fine and doesn't die when put in gear. Also it hasn't ever died at a stop sign or light and seems to run ok when warm. It idles at about 650rpms when in gear and kind of surges between 800 and 900 rpms when at idle in park. My question is do I need tunes to help the computer with the cams?

Sorry for the long post just wanted to give plenty of information.
Also it is throwing no codes right now.

Thanks,
Hill
Reply With Quote
  #2  
Old Sun, September 18th, 2011, 11:00 PM
bigred97f150 bigred97f150 is offline
Whopper Junior
 
Join Date: Sep 2011
Posts: 2
bigred97f150 is on a distinguished road
Default

I think my problem may be the IAC valve but I will not know until this weekend. I'll keep this updating just in case anyone has the same problem as me.
Reply With Quote
  #3  
Old Mon, September 19th, 2011, 12:16 AM
Longshot270's Avatar
Longshot270 Longshot270 is offline
Forum Predator
 
Join Date: Jul 2009
Location: DFW, TX
Posts: 1,878
Longshot270 will become famous soon enough
Default

Yes, I would recommend a new tune.
__________________
Reply With Quote
  #4  
Old Sat, September 24th, 2011, 08:13 AM
88Racing's Avatar
88Racing 88Racing is offline
SENIOR MODERATOR
 
Join Date: Feb 2009
Location: Somewhere ....
Posts: 4,241
88Racing is a glorious beacon of light88Racing is a glorious beacon of light88Racing is a glorious beacon of light88Racing is a glorious beacon of light88Racing is a glorious beacon of light88Racing is a glorious beacon of light
Default

Quote:
Originally Posted by Longshot270 View Post
Yes, I would recommend a new tune.
X2!...
__________________
SENIOR MODERATOR--PTLA

God doesn't have a Facebook but he's my friend.
God doesn't have a twitter, but I follow him.
Reply With Quote
Reply

Tags
cams, idle, new motor


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

Forum Jump


All times are GMT -4. The time now is 07:15 PM.


All Contents Copyright 2008-2024, Power Hungry Performance