Community Fixes
Common problems grouped from confirmed-fix threads on SupraForums — 572 issues across MKIII threads
Systems
All Issues572Engine162Electrical143Other60Cooling42Body / Interior39Suspension35Transmission28Turbo20Fuel System15Brakes15Exhaust13Sort by:Most DiscussedSystem
Turbo27 threads
wastegate assembly required modification for proper function
T3/T4 Wastegate Problem RESOLVEDWastegate Problem w/ SupraSport TurboNeed Help Fast!!!!. Shimed Wastegate No Start???+ 24 more threads
Electrical27 threads
turn signals hyper-flashing after LED conversion
Fuse box adapter for LED flasher?Turn signals wont workTurn signals dead...why?+ 24 more threads
Engine27 threads
timing belt installation procedure
Timing belt alignmentTiming problem continued. Need EXPERT help!Timing belt issue+ 24 more threads
Turbo26 threads
boost gauge reading incorrectly
My turbo...dead :( *picticking sound from turbo sideboost gauge set up+ 23 more threads
Transmission26 threads
transmission shifting poorly after initial repair
turbo mk3 automatic gear shifting question...A340E auto trans problems/questionsW58 vs. R154 tranny.+ 23 more threads
Body / Interior26 threads
unknown leak location
How bad does your targa leak?Common Tailight leakage problemLETS PLAY: what fluid is this!!!!!!+ 23 more threads
Electrical26 threads
difficulty engaging starter motor
mk3 starter relay mod questionsnightmare starter issuesStarter not working (Solved)+ 23 more threads
Electrical26 threads
difficulty locating timing marks on CPS
CPS wiring issue7mgte CPS connector/wiresAnd so it begins+ 23 more threads
Transmission25 threads
clutch slipping under load when warm
Test Drive on SPEC Clutch Problem!!!New Clutch, Adjusted Freeplay, Full Reservoir -- STILL SLIPS!JZ MA70 Fan Clutch Experiment+ 22 more threads
Engine25 threads
engine misfiring and stalling after sputtering
Need Serious Help. Its been too long!My 7m-gte Is Sputtering And Popping Under Loadcode 52 **video inside**+ 22 more threads
Engine25 threads
difficulty removing crankshaft pulley
Going to blow up my Supra if I can't get this crankshaft pulley bolt out...searchedCrank Puleynew crank pulley removal question+ 22 more threads
Engine25 threads
dipstick relocation for convenience
Installed Boss 550 Stage 5 today...well sorta :( Also need some advice.Anyone have a part number for the "NEW" Dipstick?oil dipstick tube socket removal+ 22 more threads
Engine25 threads
damaged heater water port threads on cylinder head
HG job failPitting in Cylinder Headnooo.... need help asap ... sparkplug tread was left in the engine...+ 22 more threads
Electrical25 threads
multiple vehicle lights blinking intermittently
Taillights Turn off when brakes pressed ?Yet another dash light questionbattery died is it alt are battery+ 22 more threads
Turbo24 threads
intercooler piping fabrication interference
IC piping?Dropped a socket down the Intercooler pipe...oopsie89 Supra Project Need Help+ 21 more threads
Cooling24 threads
electric cooling fan failure
Stock fan clutch Vs Fidanza electric fansFlex a Lite dual fans ?Filth Flarn, Flarn Filth...+ 21 more threads
Electrical24 threads
tail lights fuse repeatedly blowing after hard braking
Keep popping fuses( EFI). i need a directionEfi fuse blew againThe interior as it looks today...+ 21 more threads
Electrical23 threads
car will not start
MKIII won't start.Car will not startHelp with car not starting please.+ 20 more threads
Fuel System23 threads
fuel line connection leak
Look what I found.....Fuel Restriction!!!huge gas leak.What could be plugged..+ 20 more threads
Engine23 threads
difficulty removing transmission mounting bolts
where do i get the bolts for engine stand to mount my 7mgte on ?Gas draining clarificationTop 2 tranny bolts.......??+ 20 more threads