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boost issue???

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Old 05-20-10, 02:31 PM
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boost issue???
Aight i have an 88 turbo2 im haveing problems with boost it goes to about 3psi and just drops it out back to 0psi what could be the problem
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Old 05-20-10, 02:43 PM
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And there is no shaft play and no smoke or oil dripping from exhaust
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Old 05-20-10, 04:19 PM
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have you checked for leaks?
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Old 05-20-10, 04:30 PM
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Yes and have not been able to find any thing and my bov when reved blows off once and then does not if that helps at all.
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Old 05-20-10, 04:43 PM
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It blows off once instead of chattering? That's a good thing.
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Old 05-20-10, 04:52 PM
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Yeah it blows off once and no chatter at all and thats good though.
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Old 05-20-10, 05:15 PM
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sound like a vac leak to me as well. is it idling fine?
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Old 05-20-10, 05:28 PM
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are u using stock top mount? make sure all ur charge pipe are tight and yes definately check for a vacuum leak... does the idle jumps?
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Old 05-20-10, 06:22 PM
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Yeah found a vac leak at the big block off plate on the back of the intake mani.
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Old 05-20-10, 06:45 PM
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But yeah it has a stock top mount and it has been idleing about 1500 not sure y
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Old 05-21-10, 05:47 PM
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Originally Posted by rotarydude481
But yeah it has a stock top mount and it has been idleing about 1500 not sure y
well if its not warmed up would be around there, mine usually 2k when cold start then drop to 1.2k after 10 sec. then wen its fully warm its about 800-900 rpm..
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