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Old 06-15-2019, 08:33 PM   #1
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POWER LOSS after overheating?

Maybe it's just me but,

after having the alternator bearing go bad and break the serpentine belt thus causing the engine to overheat to 250d by the time I pulled over I'm a little nervous that something else was damaged. Everything works fine and their are no obvious problems now except the power seems to have reduced compared to before this happened. Is their anything to look at that might have caused the reduced power. The boost is good and can even go to 30 and the temp stays reasonable.
Any ideas.
2005 ISB 5.9
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Old 06-15-2019, 11:37 PM   #2
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The engine ECU is programmed to de-rate and protect the engine when it gets too hot.
Everything should be fine after it cools down.
You might check your exhaust manifold for cracks or leaks.
Anytime a diesel feels low on power I always recommend changing fuel filters.
You may also want to change the oil and filter after overheating.
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Old 06-16-2019, 07:48 AM   #3
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Thanks for the reply vito.a .

I have checked the exhaust and turbo and it all looks good. Good suggestion about oil and filters.


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