No Boost Under WOT
05-25-09, 09:36 PM
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No Boost Under WOT
Hey guys heres my problem,about 2 weeks ago I threw my alt belt off my stock 1990 T11,and like an idiot I didn't notice till the car was overheated,so after much cursing and a little crying,I put a new belt on.It has ran good for the last two weeks,no problems starting cold or hot,still pulls hard.But yesterday and today I notice that on my stock boost gauge I can't build any boost,its still running great but no boost,I'm wondering if something else could be my problem?(besides melted apex seals)Maybe a vaccum line or something?Any help as to where to start or look would be gretly appreciated.Thanx Chad
05-26-09, 12:11 AM
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Hey guys heres my problem,about 2 weeks ago I threw my alt belt off my stock 1990 T11,and like an idiot I didn't notice till the car was overheated,so after much cursing and a little crying,I put a new belt on.It has ran good for the last two weeks,no problems starting cold or hot,still pulls hard.But yesterday and today I notice that on my stock boost gauge I can't build any boost,its still running great but no boost,I'm wondering if something else could be my problem?(besides melted apex seals)Maybe a vaccum line or something?Any help as to where to start or look would be gretly appreciated.Thanx Chad
05-26-09, 03:21 PM
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Ok thanx for the resopnses,funny when I was coming home today after work it built boost and ran just like it should,so I guess I'll have to check the wastegate,but do I run the risk of damaging anything driving it with a stuck wastegate?Thanx Chad
05-26-09, 03:39 PM
#6
As said, don't use the stock boost gauge. It is the least accurate of all the stock gauges, and is as old as teh car.
Check for: Blown couplers. Holes in TMIC. Vac leaks etc. You can do a boost leak test, that will give you an answer there. Just need to pressurize the intake system and listen for leaks.
And absolutely you run a huge risk of damaging the car with a stuck wastegate. If its stuck OPEN, you won't make any boost and you'll be fine, but if it sticks closed - kiss that thing good bye. Figure this problem out before you go throttling it around down here
Check for: Blown couplers. Holes in TMIC. Vac leaks etc. You can do a boost leak test, that will give you an answer there. Just need to pressurize the intake system and listen for leaks.
And absolutely you run a huge risk of damaging the car with a stuck wastegate. If its stuck OPEN, you won't make any boost and you'll be fine, but if it sticks closed - kiss that thing good bye. Figure this problem out before you go throttling it around down here
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