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Old 07-02-2004, 01:48 AM
speedy300Dturbo speedy300Dturbo is offline
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Join Date: Jan 2001
Location: California
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Turbochargers on diesels tend to last longer because diesel exhaust is cooler than gasoline exhaust. I doubt that your turbo is not boosting at all, but it's more likely that the fitting at the intake manifold is clogged. It's the 12mm nut with a hose barb coming off, in front of the large 20-something mm nut with a single small electrical plug on it.

Measure boost at this fitting (pre overboost sensor) and also after the overboost sensor. It should be 12-14 psi at both ends.
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