7.3 knock

wide open 97 · #1 (**permalink**) 12-30-2012, 06:03 PM

I have a 97 f350 7.3 powerstroke with 197,000 miles on it.My question for you guys is that it is making a ticking noise almost like a lifter tap.It gets faster the higher the rpm but at idle i can not hear it at all. Truck running good and no smoke what so ever.It sounds like its from the drivers side.Could it be injector knock on the number eight injector? Or could it be something worse?? Thanks for any help

wide open 97 · #2 (**permalink**) 01-01-2013, 06:12 AM

all these memebers and no one has had this problem??? any help???

bluetickman · #3 (**permalink**) 01-01-2013, 06:30 AM

if it goes faster as your rpms go up it would be your wrist pin. if it don't and stays the same then i would check for air leak or your fuel pump behind your fuel bowl. the wrist pin on my truck has been bad for little over fivers and nothing has happen and it is still bad.

wide open 97 · #4 (**permalink**) 01-01-2013, 04:42 PM

where is the wrist pin?? You dont see it as an injector knock?

jjones96 · #5 (**permalink**) 01-01-2013, 05:25 PM

Wrist pin is the pin that connects the rod to the piston

wide open 97 · #6 (**permalink**) 01-01-2013, 05:28 PM

stupid question but can it be fixed with the motor still in or do you have to pull the motor?

jjones96 · #7 (**permalink**) 01-01-2013, 05:36 PM

Have to pull the motor and if ur gonna do it i recommend freshening the motor. New bearings piston rings ect.

bluetickman · #8 (**permalink**) 01-01-2013, 08:06 PM

you have to pull he motor cause you have to get at it from the the bottom of the motor. if it was your injector it wouldn't speed up. at least in my other diesel it didn't.when you have a bad injector your truck will idle ruff.