Question Re Blow Off Valve
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Joined: Nov 2009
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From: northwestern Ontario
Question Re Blow Off Valve
When the truck is not completely up to operating temperature, does the blow off valve work differently?
IE..truck was plugged in all night ( -3 c ), 12 pm the next I started the truck and let run at high idle for approx 10 mins and then I proceeded to drive. I noticed I could hear the blow off clearly from the turbo through the exhaust for about 5 to 10 km, about 5 miles. Is this normal? I've noticed this once or twice in the last month.
When the truck is at high idle I've always been able to hear the turbo a bit (no muffler yet).
IE..truck was plugged in all night ( -3 c ), 12 pm the next I started the truck and let run at high idle for approx 10 mins and then I proceeded to drive. I noticed I could hear the blow off clearly from the turbo through the exhaust for about 5 to 10 km, about 5 miles. Is this normal? I've noticed this once or twice in the last month.
When the truck is at high idle I've always been able to hear the turbo a bit (no muffler yet).
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
When the truck is not completely up to operating temperature, does the blow off valve work differently?
IE..truck was plugged in all night ( -3 c ), 12 pm the next I started the truck and let run at high idle for approx 10 mins and then I proceeded to drive. I noticed I could hear the blow off clearly from the turbo through the exhaust for about 5 to 10 km, about 5 miles. Is this normal? I've noticed this once or twice in the last month.
When the truck is at high idle I've always been able to hear the turbo a bit (no muffler yet).
IE..truck was plugged in all night ( -3 c ), 12 pm the next I started the truck and let run at high idle for approx 10 mins and then I proceeded to drive. I noticed I could hear the blow off clearly from the turbo through the exhaust for about 5 to 10 km, about 5 miles. Is this normal? I've noticed this once or twice in the last month.
When the truck is at high idle I've always been able to hear the turbo a bit (no muffler yet).
Now if you hear it come on when driving, it should only be under a low or no-load situation (ie cruising at low speed on flat land, decelerating without touching the brake, etc). If you are accelerating and it's kicking on, then you're EBP sensor tube is clogged with soot and needs to be cleaned out.
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