V10 is dieing, where do I go from here? - Page 4

bill11012 · #46 (**permalink**) 07-23-2009, 06:53 PM

kinda young to have that problem, has it been driven hard?
mine is at 160,769 and has no problems.

Destroya · #47 (**permalink**) 07-23-2009, 06:58 PM

Towed heavy pretty regularly, 10-12k heavy.

Krewat · #48 (**permalink**) 07-23-2009, 10:19 PM

Quote:

Originally Posted by Destroya

I have the same thing bill. Try using a fl-820s filter. If that doesn't work, you have piston slap.

I always forget that the '99's were susceptible to piston slap, that's a great tip

bill11012 · #49 (**permalink**) 07-24-2009, 12:27 AM

why more in the 99s than the rest?

Krewat · #50 (**permalink**) 07-24-2009, 10:43 AM

I guess because they started getting lots of complaints? It was also in the 4.6 and 5.4 engines as well. My '97 Cougar has a slight case of it.

By 2000, it seemed they had done something to alleviate it. Maybe made sure the tolerances were tighter for the piston-to-cylinder clearance.

MaxOut · #51 (**permalink**) 07-24-2009, 11:19 AM

Quote:

Originally Posted by Krewat

I guess because they started getting lots of complaints? It was also in the 4.6 and 5.4 engines as well. My '97 Cougar has a slight case of it.

By 2000, it seemed they had done something to alleviate it. Maybe made sure the tolerances were tighter for the piston-to-cylinder clearance.

I'm not a mechanic but was told it was poor tolerences on the wrist pins. I have a 2003 E-350 5.4 that sings a little at start up but keeps on chuggin. Worry when she gives if she ever does, mine started at about 20K miles. Has not gotten worse and allways sounds a little better with a fresh oil change.

Krewat · #52 (**permalink**) 07-24-2009, 01:42 PM

Actually, it's the short-skirt pistons that cause "piston slap". The "tick" that is sometimes attributed to piston slap, well, that might be wrist-pin related.

animal70X7 · #53 (**permalink**) 07-25-2009, 11:55 AM

Wow, this thread has kind of taken a life of it' own.. Pics of the headers are in my albums if anyone wants to see them.

PS: I spoke with Ford Powertrain and they said that they updated to 5W20 for 00-05 V10. I changed it this morning with 300 miles and will do it again at 1000 or so to make sure I get all the new "friction" out. I used MC semi-synth because it was all I could find in 5W20.

bill11012 · #54 (**permalink**) 07-27-2009, 09:43 PM

I could not find the pics.

animal70X7 · #55 (**permalink**) 07-28-2009, 12:07 PM

public profile, in Thorley headers album

bill11012 · #56 (**permalink**) 07-28-2009, 05:44 PM

I found them. Nice!!!
Do you feel a diffrence driving it?
what does it sound like?

animal70X7 · #57 (**permalink**) 07-29-2009, 10:26 AM

I'll let you know about performance and sound next week. I was told to keep it under 2500rpm til I had 500-1000miles on it (break in period). I'm on 420 this morning. I don't notice any real difference in sound yet. Though, I don't expect much difference with the stock exhaust and cat still there. Maybe they will fall off next year...