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GMC Typhoon was created in 1992.
A stock GMC Typhoon is governed by the ECU and will not exceed 124 MPH.
14.7 psi
GMC
it takes 8 qts
not exeeding than 130mph
Take your car to a GMC dealership and pay $850.
Two under the motor.
Behind the engine on the bellhousing, below the distributor. . . Complete pain to get to, you have to take the intake manifold off to effectively replace it.
www.syty.org/old/modlist.html
Two under the motor.
It is possible that the electrical wirings are grounded. You'll probably need to get an auto-electrician to take a look at it.