Community Fixes
Common problems grouped from confirmed-fix threads on SupraForums — 572 issues across MKIII threads
Systems
All Issues572Engine162Electrical143Other60Cooling42Body / Interior39Suspension35Transmission28Turbo20Fuel System15Brakes15Exhaust13Sort by:Most DiscussedSystem
Exhaust8 threads
seeking downpipe replacement options
Downpipe optionsturbo heat shield and downpipeFront exhaust pipe has holes- should I weld+ 5 more threads
Engine8 threads
bearing failure after engine wash
Wet Spark Plugs...no goahh, my car wolnt start at all, Please helpunknown 1jz issue.+ 5 more threads
Engine8 threads
stuttering and stalling under boost
My car studder/skips alot while in boost...why?Please help! Currently stranded, maybe fuel issueA new respect for plugs...+ 5 more threads
Engine8 threads
hardened PCV hoses near throttle body
Need solution for PCV hose (7MGE)PCV Pipe and air control valveCatch can????+ 5 more threads
Engine8 threads
intermittent loss of electrical power
7MGE is feeling sluggish, sweet spot at 3600RPM is goneNAs and fuel cutno power to anything+ 5 more threads
Engine8 threads
needs upgrade from MAFTPRO to standalone setup
fuel cut with maft (searched)HELP! car still wont runHow to properly clean oem MAF (CEL 31)+ 5 more threads
Engine8 threads
bent valves
7mgt Valve TrainBent ValvesIs this the correct Kit for OHC spring removal?+ 5 more threads
Engine8 threads
shifting difficulty from first to second when cold
N/A stumble on start.Is my cold start injector working properly?MK 111 transmission issues+ 5 more threads
Engine8 threads
engine cuts out at steady 1800 RPM
MAF translator problemHelp with another problem with the supra PLEASE1.5JZ cuts out HELP+ 5 more threads
Cooling8 threads
radiator replacement needed
Any current deals on Mark III manual radiator?OUCH.... my poor supraNew Radiator for MK3+ 5 more threads
Cooling8 threads
coolant overflow reservoir relocation needed
Why is overflow bottle overflowing? (don't think BHG)overflowed, but y?Coolant issue+ 5 more threads
Cooling8 threads
coolant mixed with transmission fluid
h2o in Oil *Pics*Winter came early this year...im an idiot... atf in oil+ 5 more threads
Cooling8 threads
radiator drain plug failure
Where is the A/C "Drain Tube"????SST 09923-00010... anyone know metric size?where is the coolant drain plug?+ 5 more threads
Suspension8 threads
difficulty removing lower ball joint
Lower ball joint helphow the @%#% do you take out of lower ball joint?need lower ball joints+ 5 more threads
Fuel System8 threads
oil strainer o-ring replacement
Fuel injector o-ring failureoil strainer o-ringDistributor O ring - how to get that rock hard thing off.+ 5 more threads
Transmission8 threads
rear differential seized solid
how rare is..Differential question...... LSDHelical diff?+ 5 more threads
Electrical7 threads
fog lights not staying on with high beams
HID kit wiring problems. HELPheadlight illumination question; electrical guys post up.HID conversion problem.+ 4 more threads
Electrical7 threads
battery unable to hold a charge
Could the battery be sooo dead it wont even jump?i really desperatley need help!!!Battery died, need entry...+ 4 more threads
Electrical7 threads
fuel pump voltage bypass
Start swicthBypass Clutch Push Start Switch...How?Factory Amp Bypass in a 91+ 4 more threads
Electrical7 threads
gauges not lighting up
gauges wont light up, help , tried the searchNeed help with WiresGauge lights wont turn on+ 4 more threads