Spooled_Starion Posted October 6, 2011 Report Share Posted October 6, 2011 Hello I've been noticing that my starion is really really slow around town, and doesn't make boost until around 3k and when it does make boost it doesn't feel "fast, peppy, boosted" or any kind of exciting force of boost. The factory boost gauge says I'm making around 10-11 lbs of boost but I'm assuming that's just the airflow increase instead of boost but what could cause almost no power under boost??? My turbo is really loud and screatches under boost. My car is an 88 automatic all stock. How can you tell if you vacuum advance is bad? I have 10-12 vacuum but how do I find a boost leak and not a vacuum leak? Link to comment Share on other sites More sharing options...
Spooled_Starion Posted October 7, 2011 Author Report Share Posted October 7, 2011 Nobody?? Link to comment Share on other sites More sharing options...
Indiana Posted October 8, 2011 Report Share Posted October 8, 2011 Either that turbo is dead or you have a blown manifold or turbine housing gasket or a cracked manifold. That screech noise can come from a crack under boost. Look for soot that's signs of a leak or crack. The surfaces of those parts builds up layers of rust and the only way to correct that is remove them and have them surfaced. That means a big belt sander for parts like those. Link to comment Share on other sites More sharing options...
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