Engine
rough idle possibly due to vacuum leak
Confirmed fixed in 49 forum threads. Open the originals on SupraForums for the full discussion.
87 Supra mk3 build from calgary Alberta, CAThread →
engine runs poorly with vacuum leaks
97 posts
Lost Vac. Any ideas?Thread →
low vacuum due to pre-turbo leak
45 posts
HKS ssqv acting a little weird....Thread →
vacuum line disconnected from SSQV
40 posts
VAFM problemsThread →
air or vacuum leak causing poor performance
38 posts
My new garage find 87 Supra Turbo!!Thread →
missing vacuum lines and wiring
37 posts
why is my car backfiring while driving??Thread →
backfiring sound possibly due to vacuum leak
36 posts
found out what that whinning sound was when i put on the new wiresThread →
whining sound due to disconnected vacuum hose
21 posts
Issues with 92 JDM 7MThread →
vacuum leak causing poor idle and no power
21 posts
Pics for rebuild needed?Thread →
vacuum line connections for rough idle
19 posts
550CC vac leak.Thread →
vacuum leak near throttle body
16 posts
LEX/550's SAFC KARMIN HZ questionThread →
idle vacuum pressure too low
15 posts
What's wrong with my car?Thread →
misfiring or vacuum leak
14 posts
broken BVSV :(Thread →
running very rich due to broken vacuum switch
14 posts
Vacuum issues translate into lean idleThread →
vacuum leak causing lean idle condition
14 posts
BOV Vacuum line source help!Thread →
BOV vacuum line issue
12 posts
Vacuum Lines! Help!Thread →
multiple vacuum lines need replacement
11 posts
Starting Problem, Please Help! Need Supra Running by Thursday!Thread →
no start condition due to vacuum leak
11 posts
Does your vacuum fluctuate with cruise?Thread →
vacuum fluctuation while maintaining constant speed
11 posts
why won't my car run??Thread →
engine will not run due to vacuum line connection
11 posts
Bad vacume leak?Thread →
hissing vacuum leak
10 posts
vacuum switch bustedThread →
vacuum switch failure
9 posts
o2 or AFM?Thread →
erratic idle due to vacuum leak
9 posts
Completely stumped...idle/vacuum problemThread →
rough idle or vacuum leak
9 posts
How do i adjust the idle speedThread →
rough idle possibly due to vacuum leak
8 posts
Just Bought A 86 N/A SupraThread →
vacuum leak in intake manifold
7 posts
Engine bubblingThread →
bubbling sound suggesting a vacuum leak
7 posts
7M-GTE has me absolutely stumpedThread →
vacuum leak in intake manifold or hoses
7 posts
Big Vacuum Leak!!Thread →
vacuum leak causing rough idle
7 posts
Vacuum Diagram ASAPThread →
disconnected vacuum lines throughout engine
7 posts
vacuum leak, but where?Thread →
vacuum leak from multiple vacuum lines
6 posts
Advanced troubleshooting but still wont startThread →
no start after troubleshooting vacuum lines
6 posts
Vaccum ConnectionThread →
vacuum connection missing or disconnected
6 posts
help me out...what is this sensor??Thread →
broken sensor with disconnected vacuum line
6 posts
Rough IdleThread →
rough idle possibly due to vacuum leak
5 posts
stalling, bogging downThread →
stalling and bogging down due to vacuum leak
5 posts
Why won't my 7mgte redline??Thread →
ECU losing input signals due to vacuum line issues
4 posts
Vacuum leak on driver's side (7MGE)Thread →
unidentified vacuum leak on driver side
4 posts
What the hell is all this crap? (pic)Thread →
vacuum leak from vacuum lines
4 posts
idleing problemThread →
rough idle due to potential vacuum leak
4 posts
Idle Problem Almost Solved! Few More QuestionsThread →
high idle due to open PCV vacuum line
4 posts
EGR VAC ROUTING 1987 Turbo Automatic, No ModsThread →
missing vacuum solenoid or line connection
4 posts
Idle assistance?Thread →
rough idle possibly due to vacuum leak
3 posts
Idle ProblemThread →
erratic idle and high vacuum pressure
3 posts
MK3 Supra in need of assistance please !Thread →
multiple vacuum leaks throughout system
3 posts
Hallman Pro MBC Q'sThread →
vacuum line leak
2 posts
89 JDM 7M-GTE Vacuum helpThread →
vacuum leak on intake manifold
2 posts
1jz dies on startupThread →
dies on startup due to vacuum leak
2 posts
Finally fixed rough idle (interesting)Thread →
rough idle due to vacuum leak at fuel pressure regulator
1 post
rebuild: oil problems :(Thread →
high idle followed by stall due to vacuum leak
1 post