hey, i have a 1993 flareside with a 5.0 and it has valve ping when i go up a hill. i just got it last week, and it only has 27k on it. im not entirely sure what to do, and any help would be appreciated. thanks!

 

Seafoam first then clean the injectors with Lucas fuel additive...dont use Gumout or other brands....then check timing

 

I've never heard valve slap referred to as a ping noise. I think it' more likely ping that sounds like ping! Especially under load pulling a hill. I'd run a can of "Seafoam' thru the air intake to remove Combustion Chamber carbon deposits, and a bottle of "Lucas Injection Cleaner" in your gas to improve fuel atomization from the injectors. https://www.f150forum.com/f72/how-seafoam-eighth-gen-f150-1987-1991-a-31505/

 

Lower your timimg,or run higher octane! It's simple...

I had my timing at 19* But I was running 110 Octane,If I would go lower BOOM!

 

i tried higher octane, that didn't do it. i guess i'll have to mess with the timing then. i also had some injector cleaner put in when i got the truck last week

 

"Seafoam"! https://www.f150forum.com/showthread.php?t=31505 If you want to change your base time, you know to remove the SPOUT connector, right? 10BTDC is stock.