Piston slap?

[red95gtconvert]

Hello all, my 95 GT with 127K on the clock has me a little worried. On the first start of the day it will knock for about 2 seconds and the knock will be gone just like someone flipped a switch. The engine runs strong and feels very healthy. I am running Castrol GTX 10w-30 and a Motorcraft FL1-A filter, any thoughts?

 

[True 5.0]

Sounds like your engine oil is draining out of your lifters overnight. This is probably due to your high mileage and may be an early sign of the need of a rebuild.

 

[parchisi]

I agree, I once let my truck sit for a long time (month or so) and when I started it for the first time, it made a lot of noise until the lifters pumped back up, which was pretty quick.

 

[red95gtconvert]

Thanks guys, the car runs awesome with no smoke whatsoever and it doesn't do it on every cold start. It is kind of a random thing, one thing you can count on is that if it does give up the ghost it will have a nicely built replacement going in

 

[OrangeMustangGt]

i bet its your lifters.....

try running a bit thicker oil

If it dosent smoke at wot, then your rings are probably fine