Ford Five Hundred The new mid-sized luxury sedan, offering a powerful engine and all wheel drive.

Timing Chain Problems?? 2005 Five Hundred

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Old Today | 06:26 PM
  #51  
saemetric's Avatar
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3 day update : After 3 days of morning starting, all starts went well Started immediately and idled perfectly. Today the problem returned. Started but ran roughly, chugged and puffed then smoothed out after a couple minutes.

Had the new Foxwell 510 Elite scanner hooked up. I have the Ford app in it and it does show lots of stuff.

Only code was a P0191 fuel pressure regulator code during this rough running period. After it warmed up I scanned again an no codes, no P0191. Fuel pressure shows 39.2 psi which is what it’s supposed to be. Ran thru all the checks shown in the Ford app and everything passed.
BTW the fuel pressure regulator code is new and wiring to it looks good.
Anyway back to square one. It’s not consistent. Some days yes, some no. If anyone has any ideas let me know.



 

Last edited by saemetric; Today at 06:29 PM.
Old Today | 07:52 PM
  #52  
hanky's Avatar
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I know you didn't buy that tool to check for codes, so can you post the data it does show. That is what we are waiting for.

Oxygen sensor readings, fuel trim, RPM, and IAT, ECT, .Does it show desired fuel press and actual fuel press ?
It might be a little work ,but would like to see readings before starting engine and a few minutes after starting engine.

It is called DATA STREAM info.
Does it show module health and what modules your vehicle DOES have? Hope you made a wise investment.
 
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