Ford Truck Enthusiasts Forums

Ford Truck Enthusiasts Forums (https://www.ford-trucks.com/forums/index.php)

- Pre-Power Stroke Diesel (7.3L IDI & 6.9L) (https://www.ford-trucks.com/forums/forum117/)

- - lifter problem? (https://www.ford-trucks.com/forums/1040081-lifter-problem.html)

phantom 309

02-14-2011 09:22 AM

lifter problem?

i have a 93 f-250 with a 7.3 idi n at an idle it has a loud knocking noise and its missing but goes a away when idled up is this a lifter problem?

Dave Sponaugle

02-14-2011 04:57 PM

Are any of the injectors much hotter than the others?

An injector stuck open can let compression back into the injector and make a rather loud noise.

That injector would also be much hotter than one closing normally.

phantom 309

02-16-2011 09:37 AM

i havnt checked that but i just put all new injectors in it

Dave Sponaugle

02-16-2011 06:46 PM

Did this noise start right about that time?

phantom 309

02-18-2011 09:12 AM

it kind of did it before but i think im suckin air somewhere because it stalls after the first start n i have to pump the pedal to get it to fire up

All times are GMT -5. The time now is 09:03 PM.