Compression Ignition Addict
Join Date: Jul 2011
Location: va beach
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ticking, low boost, high pitched air hiss
Nothing bit problems with both 7.3s I've owned. Getting a 6.0 next time... -_-
So got the truck running again, now I.noticed higher.rpm and building.boost I got a high.pitched.air.hiss, at 15psi, Max the motor.will reach.now..
Im. Pretty sure that's a.loose boot clamp,It got.stripped
Now I can only.make it to 10psi ish. At idle it sounds normal, but under throttle it starts ticking, louder and louder but not so much faster as the rpm goes up. So makes me believe its not a valve train part.
I'm thinking injectors? What else???