wicked wheel install went bad

[sawyer1]

Checked my boots no tears in them. Sound is definetly coming out the exaust could a bent turbine wheel cause this situation. Could the wastegate cause a really really loud turbo whine.

[frandawg_16]

Hi, I was just wondering if your exhaust back pressure valve is not working? Im up here in SK and its around -10C in the mornings when i leave for work. The truck is straight piped and it sounds like a jet engine when that valve is closed off anywhere along the exhaust side. It opens when the engine temps warm up, the idea is to keep the heat in the engine so the cab can heat up faster... But if you try to drive it when its in the closed position the truck will hardly build boost, max speed I've found to be about 55 mph, if that. Since you said that you pulled the turbo off the pedestal and did touch anything inside, i would wonder if a) the wastegate solenoid or wires are damaged or b) if it applies to your truck (some 7.3s don't have the EBP valve), there is a problem with the linkage for the actuator or the actuator itself and/or oil passage for the EBP valve. Could you have damaged the oil passage seal or restricted the flow? To check the EBP take off the linkage and tie the valve open, if you get your power back thats the culprit. btw, the actuator is an electrically controlled, hydraulically actuated ram. Sorry about the long winded reply, hope it helps!

[dereku]

^^^ agreed check that out

[jbeasts10]

Yes,it sounds like the ebpv.

[jbeasts10]

[no-tel-in]

are you sure the wheels are the same...?

[sawyer1]

Originally Posted by jbeasts10

Yes,it sounds like the ebpv.check it..did you unplug it.?

Been unpluged for years the valve is in the stuck open position so i know its not that. I only hear the noise out the exhaust ill try to post a video
I had my turbo completely apart guts out for the 2nd time and no change.

[jbeasts10]

Originally Posted by frandawg_16

Hi, I was just wondering if your exhaust back pressure valve is not working? Im up here in SK and its around -10C in the mornings when i leave for work. The truck is straight piped and it sounds like a jet engine when that valve is closed off anywhere along the exhaust side. It opens when the engine temps warm up, the idea is to keep the heat in the engine so the cab can heat up faster... But if you try to drive it when its in the closed position the truck will hardly build boost, max speed I've found to be about 55 mph, if that. Since you said that you pulled the turbo off the pedestal and did touch anything inside, i would wonder if a) the wastegate solenoid or wires are damaged or b) if it applies to your truck (some 7.3s don't have the EBP valve), there is a problem with the linkage for the actuator or the actuator itself and/or oil passage for the EBP valve. Could you have damaged the oil passage seal or restricted the flow? To check the EBP take off the linkage and tie the valve open, if you get your power back thats the culprit. btw, the actuator is an electrically controlled, hydraulically actuated ram. Sorry about the long winded reply, hope it helps!

I have heard that some simply unplug them with no problems.I gutted mine and removed the wiring.No problems..

[southern7.3]

Mine sounded like that when I didn't have my down pipe clamped down one time

[sawyer1]

Originally Posted by southern7.3

Mine sounded like that when I didn't have my down pipe clamped down one time

The down pipe is connected does it connect dowwn under the truck. Would that make a signifigant power loss?