5.4 V8 Misfiring AGAIN!

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  #61  
Old 02-22-2011 | 10:10 PM
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Originally Posted by jimanderson
Got a question - How do you get the cruise control cable to release from the throttle body? I was going clean mine last weekend, but couldn't figure out how to get that cable off.
Actually you push straight back, the opposite direction, you get the idea. You have to turn the mechanical's while doing so.
 

Last edited by jbrew; 02-22-2011 at 10:16 PM.
  #62  
Old 02-22-2011 | 10:12 PM
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Originally Posted by FF Titus

Question: Auto parts guy said that engine de-greaser will work as well as throttle cleaner. Is this true? Want to know before I go ahead.
I just used Dawn, soapy water. Then wet sanded, then polished w/red rouge and buffing wheel.

 
  #63  
Old 02-23-2011 | 03:40 AM
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Why not use what's made for the job?
 
  #64  
Old 02-23-2011 | 06:04 AM
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Like what ? What's safe enough not burn the TPS ribbon? The bearings are rubber coated as well. Their sealed, but have that rubber or plastic cap.
 
  #65  
Old 02-23-2011 | 11:45 AM
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I noticed when I took the TB off the oval seal was cracked. Where can I find a new one of those? Ebay or is that another ford dealership only part?
 
  #66  
Old 02-23-2011 | 03:06 PM
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I have some sealant I bought from Napa to seal up my magneto on my tractor motor. Would that work the same here?
 
  #67  
Old 02-23-2011 | 03:14 PM
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Try rockauto.com or your local dealership for the gasket....you might want to try to.call your local parts stores also....
 
  #68  
Old 02-23-2011 | 03:25 PM
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I'm not seeing it on RA, I'll need to find the correct name for it 1st.
 
  #69  
Old 02-23-2011 | 03:27 PM
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I believe it's called a throttle body gasket........
 
  #70  
Old 02-23-2011 | 04:25 PM
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I'll tell yea, finding this

http://shop.advanceautoparts.com/web...S_965987406___

In stock was a total PITA. No one had it. Well one guy did but he wanted $40 for it. I'm all for supporting mom and pop places but $40 Vs $4...a little excessive.

Thanks glc for that, helped a ton.
 
  #71  
Old 02-23-2011 | 08:37 PM
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Yea, good find.
 
  #72  
Old 02-24-2011 | 06:25 PM
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All back together, and no more gas peddle sticking. But still running somewhat rough. Here's some videos I uploaded as I hear a light ticking sound from under the truck:


http://www.youtube.com/watch?v=gYatPRzgkwM

&

http://www.youtube.com/watch?v=gDTuvVeFHow

Everythings back together, started right up, fuel is running at 30psi upon start up while the engine is at normal temp.
 
  #73  
Old 02-24-2011 | 07:30 PM
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I know 29 psi is lowest you can go with the 4six. I think the 5four is higher, maybe not, I thought it was higher tho.

Regardless, I would swap #8 with #5 coil, to see if the misfire follows.

If the ticking went away, I think it's a small intake, exhaust leak.
 
  #74  
Old 02-24-2011 | 07:34 PM
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Yea, Idle should be 700-750 or there's usually a problem. I thought I seen in at 700 ?

What DTC are you getting ? PO308 or PO358 ? I couldn't see it.
 
  #75  
Old 02-24-2011 | 08:13 PM
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When you had the camera up top, I could hear that ticking but not as loud as I could from the under side video, but it may have been amplified or echoing off the rear firewall. Possibly the number 8 injector? Sounded like the right consistency for injector pulse. Or maybe a coincident. Hopefully not a plug... did it just start recently after the plug change? Or been there a while.. Sounds like you have an exhaust leak also.
 

Last edited by Toyz; 02-24-2011 at 08:18 PM.


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