Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
Sign in using an external account
Register Forgot Password?


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #16  
Old 03-09-2012, 05:49 PM
dsc's Avatar
dsc dsc is offline
Senior User
 
Join Date: Mar 2001
Location: Maryland
Posts: 296
dsc is starting off with a positive reputation.
WOW! 300 views no responce. Does any one have any sugestions? I am at a loss Thanks Art
Reply With Quote
  #17  
Old 03-12-2012, 03:11 PM
statedclerk statedclerk is offline
New User
 
Join Date: Mar 2011
Posts: 15
statedclerk is starting off with a positive reputation.
Is there a chance that the torque converter is locking up and not unlocking until you restart the engine? A locked converter will stall the engine.
Reply With Quote
  #18  
Old 03-12-2012, 04:01 PM
shawchaz5's Avatar
shawchaz5 shawchaz5 is offline
New User
 
Join Date: Mar 2012
Posts: 4
shawchaz5 is starting off with a positive reputation.
If you shift into neutral taking the load off the engine when stoped does it still stall, or can you fether the pedal to keep it running?
Reply With Quote
  #19  
Old 03-13-2012, 08:01 AM
dsc's Avatar
dsc dsc is offline
Senior User
 
Join Date: Mar 2001
Location: Maryland
Posts: 296
dsc is starting off with a positive reputation.
Thanks for responce. The truck will not idle in Park or Neutral . Runs great down the road. just stalls at light and when you stop.

Thanks
Art
Reply With Quote
  #20  
Old 03-16-2012, 10:12 PM
Terpfords's Avatar
Terpfords Terpfords is offline
Senior User
 
Join Date: Nov 2008
Posts: 480
Terpfords is starting off with a positive reputation.
Have you attempted to 'set' or change the idle speed?
Reply With Quote
  #21  
Old 03-16-2012, 10:28 PM
jade79 jade79 is offline
Elder User
 
Join Date: Dec 2003
Posts: 734
jade79 is gaining momentum as a positive member of FTE.
"Disconnected all vacuum lines from intake manifold tree and plugged. I ran a separate vac line from intake vacuum tree to fuel reg on fuel rail and to Map sensor."

From vacuum tree. Do you have power brakes? If so did you disconnect and plug the hose leading to the booster to rule out the booster diaphram as a culprit?

just a thought.

Did you check the hose from the PCV valve to the intake for cracks/leaks?
Reply With Quote
  #22  
Old 03-18-2012, 09:34 AM
dsc's Avatar
dsc dsc is offline
Senior User
 
Join Date: Mar 2001
Location: Maryland
Posts: 296
dsc is starting off with a positive reputation.
Thanks for the responses.

The idle can not be set on this truck it is EFI. Timing is set perfectly.

All Vacuum hoses have been replace including the PVC line behind the upper intake. As noted above everything is new. When changing out the cam again all new gaskets replaced.

Also no computer codes the only codes are pass test codes on eng off and eng on tests

Eng will idle if if I keep rpms above 1000, let off gas pedal the will stall, in any gear or park/neutral

Thanks
Art
Reply With Quote
  #23  
Old 03-18-2012, 10:49 PM
jade79 jade79 is offline
Elder User
 
Join Date: Dec 2003
Posts: 734
jade79 is gaining momentum as a positive member of FTE.
Are you reusing the original throttle body? If so, did you clean the throttle bore just behind the throttle blades, where they close? Carbon will build up there and cause hesitation and stalling at idle. It only takes a small amount to cause it. I usually take a cloth with some carb cleaner and wipe it out throughly.

Check the idle voltage specs in your shop manual on the throttle position sensor. The 5.0 Mustangs had to be set just right (and could be rotated a few degrees) to get a decent idle (voltage reading). Use a modern high impedence volt meter so you won't burn out your ECU.

I'd also double check the IAC for proper operation. Considering the quality of parts coming over the counter these days, just because something is new doesn't mean it works properly.
Reply With Quote
  #24  
Old 03-21-2012, 07:24 PM
dsc's Avatar
dsc dsc is offline
Senior User
 
Join Date: Mar 2001
Location: Maryland
Posts: 296
dsc is starting off with a positive reputation.
Found problem

Replaced the 2nd cam, (Comp 35-512-8) with the original roller cam I removed from the eng before I rebuilt it. Truck now runs perfect! Idles and does not stall when you come to a stop light. Thanks Art
Reply With Quote
  #25  
Old 03-21-2012, 09:52 PM
jade79 jade79 is offline
Elder User
 
Join Date: Dec 2003
Posts: 734
jade79 is gaining momentum as a positive member of FTE.
Glad to hear you got it fixed. You can probably change the cam in that thing with your eyes closed by now.
Reply With Quote
  #26  
Old 11-08-2012, 01:25 PM
qdeezie qdeezie is offline
New User
 
Join Date: Nov 2012
Posts: 6
qdeezie is starting off with a positive reputation.
I would like to resurrect this thread with a question. When you had the camshaft issue, did you use the stock roller camshaft with the standard 302 firing order or was it the 94-96 F150/96-2001 Explorer camshaft with the HO firing order?
Reply With Quote
  #27  
Old 06-04-2014, 12:22 PM
9T2 flareside 9T2 flareside is offline
New User
 
Join Date: Jun 2014
Location: Ontario ,Canada
Posts: 16
9T2 flareside is starting off with a positive reputation.
Comp cam 35-351-8

I am looking for a used comp cam 35-351-8 for my engine....5.0L
Anyone by chance would have one laying around and would like to get rid of it????? Let me know.
Thanks
AL
Reply With Quote
Old 06-04-2014, 12:22 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
F-150 High-rough idle problem solved! 2wltime 1987 - 1996 F150 & Larger F-Series Trucks 1 10-12-2012 12:42 PM
2000 Ford Contour Question - Help! mtnlovrs General Automotive Discussion 4 01-17-2010 02:41 PM
Intake Leak Fixed!!! f15084 Ford Inline Six, 200, 250, 4.9L / 300 5 04-17-2009 09:14 AM
Engine Sputters after Warmed up under load reino134 1987 - 1996 F150 & Larger F-Series Trucks 24 01-11-2009 08:12 PM
1985 F150, 5.0L EFI issues - Please help! Coresair 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 31 09-22-2006 10:54 PM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)

Tags
2001, 302, 355128, 50, 89, bearing, cam, comp, cranks, dies, f150, firing, ford, ford150, order, problems, shortly, truck

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


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 11:12 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - 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. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup