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Buick Turbo Tech General technical support for the 86-87 Buick turbo cars

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  #1  
Old 08-13-2008, 01:43 AM
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DA87GN DA87GN is offline
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Default i have a weird problem

OK guys,here is the crazy problem that i have.for the most part my 87 gn is mostly stock with miner bolt ons.just this week end my cam sensor and maf sensor went out so i ended up replacing both the same day.after installing the sensor i went for a test drive to make sure that everything was ok.BUT ended up finding a other problem.HOW can i explain it,lets try this
turbo t49 new
watsegate new
hoses and clamps new
boost line new
wastegate solenoid new
gn has 36,000 plus miles on it
when going into wot my boost gauge reads that i am at 21 psi which i have it always set at 17psi at the same time that im in wot my gn feels like theirs no turbo in the car, doest move hard at all,very very very slow.it feels like the turbo isnt kicking in .i can hear the turbo spinning and making a very loud noise like air or something but thats when im into the gas.i check all the hoses and they appear to be good my gauge shows that i have vacuum too

once again gn boost to 21psi but moves slow like if their wasnt a turbo in the car
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  #2  
Old 08-13-2008, 12:40 PM
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JCotton1 JCotton1 is offline
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Youch... now thats interesting..... I think we need to know some timetables... like was it running fine before installing the turbo and other upgrades, did you do anything just before the problems started... you can't be at 21lbs of boost and in vacumn at the same time...
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  #3  
Old 08-13-2008, 06:34 PM
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DA87GN DA87GN is offline
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Hey jack,all the small upgrades have been done over the past 5 years or so,the car has always ran perfect in every way possible,drives like its new
just 21 years old.the only reason that i ended up replacing the turbo on the car was due to the old one was leaking oil into the intercooler and exhuast system.the turbo was replace with the other parts that i had mention above about a month & 1/2 ago. the car ran perfect till friday night thats when the cam sensor went out on me.all work was done by my mechanic which has worked on a hand full of gn's and syclones in the pass.I was told that it could be my toque converter that can cause this to happen.
my gn is usually use to go to car show.i normally just cruise the car not running it hard
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210/210 DLS roller cam kit,2 1/2 hookers exhaust,test pipe,t49 turbo @ 20psi,42LB,billet adj fuel regulator,adj waste gate, tt chip,160 thermostat,hot wire kit,torque strap,boost&vac gauge,knock gauge,,billet aluminum vacuum block,17'' budnik wheels,Scanmaster,LT1 MAF,Translator,Vigilante 9 1/2 torque converter 2800 TO 3200 stall,trans cooler,Jimmy's rebuild trans,walbro fuel pump,PTE stock location ic,37,000plus miles

and maybe alky to be a little slower
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  #4  
Old 08-13-2008, 07:54 PM
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BrianHynes BrianHynes is offline
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It sounds like your TC lock up solenoid is not allowing your clutch to unlock. Check the wiring and solenoid for proper operation. Does you GN stutter at all?
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  #5  
Old 08-13-2008, 10:24 PM
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DA87GN DA87GN is offline
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no stuttering at all, when driving normal its ok just in wot.I did have the tcc solenoid replace last year.
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210/210 DLS roller cam kit,2 1/2 hookers exhaust,test pipe,t49 turbo @ 20psi,42LB,billet adj fuel regulator,adj waste gate, tt chip,160 thermostat,hot wire kit,torque strap,boost&vac gauge,knock gauge,,billet aluminum vacuum block,17'' budnik wheels,Scanmaster,LT1 MAF,Translator,Vigilante 9 1/2 torque converter 2800 TO 3200 stall,trans cooler,Jimmy's rebuild trans,walbro fuel pump,PTE stock location ic,37,000plus miles

and maybe alky to be a little slower
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  #6  
Old 08-13-2008, 10:45 PM
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DA87GN DA87GN is offline
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Hey Brianhynes,after thinking about what you mention you may have a point here with the tcc solinoid. Im going to try and due my home work on this to see if this is the problem or not THANKS FOR THE INPUT
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210/210 DLS roller cam kit,2 1/2 hookers exhaust,test pipe,t49 turbo @ 20psi,42LB,billet adj fuel regulator,adj waste gate, tt chip,160 thermostat,hot wire kit,torque strap,boost&vac gauge,knock gauge,,billet aluminum vacuum block,17'' budnik wheels,Scanmaster,LT1 MAF,Translator,Vigilante 9 1/2 torque converter 2800 TO 3200 stall,trans cooler,Jimmy's rebuild trans,walbro fuel pump,PTE stock location ic,37,000plus miles

and maybe alky to be a little slower
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