Community Fixes
Common problems grouped from confirmed-fix threads on SupraForums — 572 issues across MKIII threads
Systems
All Issues572Engine162Electrical143Other60Cooling42Body / Interior39Suspension35Transmission28Turbo20Fuel System15Brakes15Exhaust13Sort by:Most DiscussedSystem
Engine102 threads
rough idle
weird mk3 problemSomeone help. Still cant get the car to idle91 turbo toyota supra+ 99 more threads
Engine71 threads
slowly creeping and dropping RPMs at idle
7m-GTE bucking under throttleAccordian Pipe QuestionNeed serious help--car stranded!+ 68 more threads
Engine59 threads
no start after head gasket job
Shorted won’t runNo Start after HG Job..What kind of comon problems MK3 usally have??+ 56 more threads
Engine57 threads
white smoke upon startup
I thought the inevitable happened.Burning oil...Sometimes?1987 supra turbo blow-by :/+ 54 more threads
Engine55 threads
low oil pressure
Here is how to fix 3 of 4 fundamental problems with 7M oil system7M, you have tried my patience one too many times - I AM DONE WITH YOU!!!High Flow Oil System Troubles+ 52 more threads
Engine49 threads
oil leak from crankshaft position sensor
Just bought a 91T 5spd...what did i just get myself into?!My introduction to my car and its problemsEngine Oil stop leak safe?+ 46 more threads
Engine49 threads
rough idle possibly due to vacuum leak
87 Supra mk3 build from calgary Alberta, CALost Vac. Any ideas?HKS ssqv acting a little weird....+ 46 more threads
Engine47 threads
rough idle when cold
MkIII NA starts and runs fime remains ar high idle - does not drop back when warmed up.Over fueling on start-idle bouncesCooling system overload.+ 44 more threads
Engine44 threads
missing vacuum line connection near intake manifold
Vacuum Hose Manifold?Where does the 7mgte get it's vacuum?Well working on the H/G+ 41 more threads
Engine43 threads
knock sensor replacement
Rewireing knock sensors cable helpQuestion about knock sensorMy Dyno Run+ 40 more threads
Engine43 threads
engine revving limited at low RPM
Intercooler Issue: Engine Dies at High RPMs After IC Piping Tighteningclaude Blew A Headgasket!!*HELP* Toyota Supra 7MGTE Car spotters on hard acceleration+ 40 more threads
Engine40 threads
oil leaking into spark plug holes
Oil in sparkplugs.. As usual..Oily spark plugs and firing orderUh-oh...changing my oil and might have a serious problem+ 37 more threads
Engine39 threads
water pump torque specification
7M GTE Head re-torqueStarted Rebuilding!Head Gasket Re-Torque?+ 36 more threads
Engine39 threads
whining noise when shifting into reverse
Akward grumble from motor....Strange "blender like" sound under full throttle?rsr exhaust sound clip anyone+ 36 more threads
Engine38 threads
plugged coolant line near throttle body
Help with driveline clunkSpark plug removal 101throttle cable from gas pedal snapped, anyone else have a shitty day?+ 35 more threads
Engine37 threads
rough idle after head gasket replacement
Lex/550 idle issues, revisitedPut rebuilt engine in, idleing roughShe Runs Again After A Month!+ 34 more threads
Engine36 threads
flywheel mounting bolts loosening
Fidanza doesn't fit!Reuse flywheel and pp bolts?who makes this flywheel? and is that ring fixable? PICS+ 33 more threads
Engine36 threads
hits fuel cut at wide open throttle
Cold weather + WOT = boost cut ?????ummm... oops.... tps connection q *pic*So im pulling out of the driveway leaving for Supras Invade Vegas and....+ 33 more threads
Engine36 threads
oil pressure gauge reading incorrectly
Oil pressure gaugeWhat's the huge hose from oil filler cap to block called?Oil gauge dead, and fuel problems with JDM Lexus 550's HELP!+ 33 more threads
Engine34 threads
oil leak from valve cover gasket
Clutch Problem...?coolant coming out of oil panMajor Oil Leak -where's it coming from?+ 31 more threads
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