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low compression with some sputter

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crankwlk95

Probationary Member
4
0
Aug 7, 2007
findlay, Ohio
I have searched and searched and have not come up with anything so now I'm asking you guys..her is my issue I have a 90 gst that I jusrt rebuikt back to stock. But now its got a little hesitation and sputter when taking off. And once the turbo starts to spool the sputter does awayy but the car doesn't pull at all....I did wet and dry sompression teest and both read 122 all the way across. I have done a boost leak test. No leaks. And have chech timing a number of time. Any ideas would ve grear thanks
 
What was the reason for rebuild? also what head gasket did you use?
 
What was the reason for rebuild? also what head gasket did you use?

the reason for the rebuilt was cause my sister broke a belt and bent valves but the head was all redone. And the head gasket is what ever one came in the rebuilt kit. Nothing special.
 
HMM, what rebuild kit did you use? A cheap made gasket could be the issue. Did you use the original head bolts or ARP studs?
 
i would also pull the injectors out and see if they are clogging. My car did the same thing and it was because i had rust in my fuel lines and it was clogging everything up. Try spraying out the injectors and fuel rail with carb cleaner and putting a new fuel filter on.
 
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