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Old 10-28-2006, 10:44 AM
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Turbo Surge

Seems like I have developed a nice case of turbo surge. At just under 2000 RPM I can hear and feel the turbo load up and the then wastgate opening. It happens when I'm not towing and running at constant throttle.
I've done 50000 km in the truck and it only just started to happen. It's a stock motor expect for a Quadzilla chip. Any ideas why and what the fix is without spending major bucks?
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Old 10-28-2006, 10:57 AM
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What year truck doyou have?
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Old 10-28-2006, 01:50 PM
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Hi it was built in 99
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Old 10-30-2006, 11:24 AM
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Quote:
Originally Posted by bluecanuk View Post
Seems like I have developed a nice case of turbo surge. At just under 2000 RPM I can hear and feel the turbo load up and the then wastgate opening. It happens when I'm not towing and running at constant throttle.
I've done 50000 km in the truck and it only just started to happen. It's a stock motor expect for a Quadzilla chip. Any ideas why and what the fix is without spending major bucks?
Mine does that only when cold. Its just the warm-up valve staying part closed on the exaust outlet on the turbo. As soon as the truck warms up all the way the noise goes away.
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Old 10-30-2006, 01:28 PM
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It's the exact opposite for mine. It runs ok cold but develops surge as it warms up. But it tends not to do it on warmer days. ?
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Old 10-30-2006, 02:04 PM
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Mine started doing it as soon as I started adding more power The cheapest way out is a new compressor wheel anywhere from 60-120 bucks Is your truck a early or late 99 If it is a early 99 it is might be somethingf else
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Old 11-04-2006, 07:59 PM
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Has anyone used a rebuilt turbo from Ron's Turbo Service?
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Old 11-06-2006, 06:04 PM
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could it just be the ebp valve malfunctioning?
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Old 11-08-2006, 03:22 PM
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Now I'm embrassed, what's the ebp valve?
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Old 11-08-2006, 04:06 PM
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exhause backpressure valve. Is is controlled by a sensor located near your turbo. It closes when the oil temp is really cold and assists in warming your diesel engine up. It puts a slight load on your engine.

If it malfunctions, it can stick shut or open and shut alot. It kinda sounds like the truck boggs down a little, followed by a loud, sharp 'sshhhhhh' sound
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