smurph314
Probationary Member
- 3
- 0
- Nov 23, 2011
-
Fremont,
Michigan
Yes I see that my post is similar to the Galant, but only in the noise during acceleration (like hitting a wall) the problem is dif. bought a 97 GST FWD turbo 5spd with a 6bolt swap 16gturbo, upgrades large intercooler, piping, injen intake, atmospheric bov. Ngk plugs and msd wires. under normal driving conditions car runs perfect, great start, idle, revs to readline without load(neutral). As it should, spent 3months in a shop fixing a bouncing idle and stall issue. Smoke tested, all (11 vacuum leaks fixed) No vacuum leaks anywhere or oil, fluids. Fixed noise from exhaust (new hangers) new ECU(had blown circuit) , throttle body, idle air control motor had gone bad. And new engine and tranny mounts. (thought the mounts were the cause at first)Under a medium to heavy load, half to WOT(driving in 2nd -5th gear) once the turbo starts spooling and the car starts hauling, BOOM a loud thud (feels like the whole car moves) with surprisingly no feeling of movement in the shifter (where I thought at first it was a gear issue).Its Hard to explain, it started 2 weeks after I got the car and was on the highway when I felt it. This was before getting the massive vacuum leaks fixed. It never happened if I could press the pedal ½ to ¾ down throttle and gave the turbo a little time to build boost then press to the floor and as long as I wasnt going WOT the noise wouldnt happen. (once the loss of vacuum was fixed) Now the car has more power it makes a hard thud and it also almost feels like the gear is disengaging slipping off but not completely (not as loud since the mounts and exhaust got fixed) because if I let it thud and coutinue to hold throttle the rpm drops a little and feels almost like a bad clutch. Everyonce in a while I can accelerate through the gears without it happening now and it isnt a sputter or stall. (but not
.complicated) is it possible its the clutch slipping, or a bad flywheel, or tranny? Also only once the clutch pedal lost pressure for 5 mins while on the hghwy but poped back shortly and still would shift through the gears fine.( Has had ecu, TB, plugs, plgwires, pcv, vacuum leaks, exhaust leaks) inspected and replaced?
Any ideas? clutch, flywheel, differential
Any ideas? clutch, flywheel, differential