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T444e has warn engine light and code 333 after warming up…

Customer Question
T444e has warn engine light...
T444e has warn engine light and code 333 after warming up and running 30 min. Goes into limp mode.
Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Customer reply replied 2 years ago
If you turn truck off and restart right away light goes off and runs fine for sometimes 3 mins and up to 30 min before it goes into limp mode again. Seems to do it faster driving at higher speeds and above 2000 rpm
Answered in 41 minutes by:
2/20/2016
Technician: Jeremy, Certified Truck/Bus Technician replied 2 years ago
Jeremy
Jeremy, Certified Truck/Bus Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 3,866
Experience: ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician
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I'm an independent contractor and I don't get paid until a rating has been made. No rate, site gets it all.

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333 - Injection Control Pressure above/ below desired level

Check the IPR and replace it. If the code remains after, then you have a leak on one of the injector o-rings that needs to be replaced. That is what is causing this code.

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Customer reply replied 2 years ago
I ordered a new IPR. If that doesnt fix how do i determine which injector is causing issue? Is there a test?
Technician: Jeremy, Certified Truck/Bus Technician replied 2 years ago

The only real test is to pull the injectors to check the o-rings. I wish it was simpler, but it isn't on this year and model of engine.

If it has been a long time since th o-rings were done or if you never done them, they will most likely need them. The o-rings are cheap. It just takes a little bit of time to get the valve covers off and pull the injectors. When the o-rings are worn, you'll see an improvement in power once they are changed out.

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Technician: Jeremy, Certified Truck/Bus Technician replied 2 years ago

I see you viewed this and this is still showing as a open question due to no positive (3 stars or more) rating.

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