 Turbo spins freely but no boost! |
 Oct 5, 2009 - 2:14 PM
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Enthusiast Joined Nov 18, '08 From WI Currently Offline Reputation: 0 (0%)  |
Hey guys, I have an issue with my 2nd gen 3sgte motor. I purchased an exhaust manifold from ebay and put it on. I screwed all the nuts and bolts back on but i was missing a nut holding one of the six bolts holding the turbo exhaust housing to the downpipe. I figured that it'll be okay since it looks tight enough. I drove the car for about 4 blocks and i started to lose power, so I decided to go back home. When I got back to my garage, I started to hear knocking noises coming from my engine and it sounded like it was coming from the head. A few days later I went back to start it up, the noise was gone but still no power when accelerating and white smoke comes out from my exhaust when when accelerating. Car starts up perfect, car idles fine, don't hear any boost leak and no smoke coming out from exhaust during idle. Did a compression test and it came out 150 155 155 150, so I assume that head gasket is good. Checked sparks plug and they all look good, no oil. Wastegate acutuator arm is not loose and turbo spins freely with no shaft play. Took apart all IC pipings and reinstall about 4 times to make sure it is not loost or damage.
Here are some more problems I encountered: 1. When i'm in first gear, i floor the car, the boost gauge needle would jump to 0 psi and drops instantly. happens in all gears. 2. Took off the filter by the maf and when i rev, I feel/hear it sucking 3. Don't hear BOV ( vacuum leak?) I have a Greddy BOV 4. Before the car had this problem, during boost, the green LED knock lights would come on but now, it just stays red. What could be the reason for my car not to boost? Before I installed the new exhaust manifold, car ran great at 14psi. |
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Replies
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Feb 7, 2010 - 10:48 PM
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Enthusiast  Joined Feb 14, '09 From Mid West Currently Offline Reputation: 7 (100%) |
TUUURRRBOO!!
We're supposed to get 3"+/- tomorrow here. You guys drive turbos in the snow?? |
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Feb 8, 2010 - 7:31 PM
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Enthusiast Joined Nov 18, '08 From WI Currently Offline Reputation: 0 (0%) |
QUOTE (Bigblock @ Feb 7, 2010 - 10:48 PM)  TUUURRRBOO!! We're supposed to get 3"+/- tomorrow here. You guys drive turbos in the snow?? My car hibernates in the garage during winter. The turbo issue happened this past fall but never had the chance to fix it until this past weekend. If it was a GT4, it would probably see snow. 
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Posts in this topic
celi_6 Turbo spins freely but no boost! Oct 5, 2009 - 2:14 PM
domyz the wastegate don't look like to seat in place... Oct 5, 2009 - 3:19 PM 95st-celica pull your downpipe off....lay your gasket over the... Oct 5, 2009 - 4:01 PM celi_6 I will look into it tomorrow and what the problem ... Oct 6, 2009 - 8:54 PM bccentaur3 If you've got a massive boost leak you wouldn... Oct 6, 2009 - 11:58 PM
celi_6 QUOTE (bccentaur3 @ Oct 6, 2009 - 11... Oct 7, 2009 - 5:20 PM x_itchy_b_x My guess is that the turbo shaft between the intak... Oct 7, 2009 - 5:37 PM pittfirefighter i agree with itchy... take the turbo all the off a... Oct 7, 2009 - 6:01 PM bccentaur3 what was the temp outside when this happened?
Ch... Oct 7, 2009 - 9:20 PM celi_6 Found out why my car wasn't boosting. Finally... Jan 19, 2010 - 6:31 PM celi_6 Finally install my new ct26 turbo and every thing ... Feb 7, 2010 - 9:54 PM |
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