Hey Scotty! Love your YouTube channel, you’ve helped me out quite a bit! One question though. I drive a 2009 Ford Mustang GT Manual Transmission that’s been having a problem idling when it’s been sitting for a while. It seems to act fine when I turn the car on and drive and everything but when I leave it there to warm up for a little bit after some time has passed leaving it on it’ll start to rough up to about 1500 rpms and then back down to about 500-600 rpms. Any help you could give is MUCH APPRECIATED!! Thanks a lot, Brandon
ps- the car does this as well when ac and hear are being used
You need to clean your throttle body. Get a can of throttle body cleaner, remove the intake tube and spray any black sooty looking buildup until it dissolves. Soak up excess cleaner with a rag. It might be hard to start first time after cleaning. Has to burn the cleaner out
With those 4.6 V8's can get a bit finicky. Start with the easy stuff first; clean the throttle body, and MAF, Scotty's got videos for both those. It can also be the IAC (idle air control) cleaning might work for a while, but not very long I had to replace mine on my 02 GT. If those don't help then more in depth troubleshooting is needed.
Thank you! I cleaned my maf sensor and cleaned out my throttle body. I bout a BBK cold air intake system and installed it myself and it kinda fixed the problem but it’s still there.