You can get a USB charger with built in voltmeter that just plugs into the cigarette lighter hole. Tons of them on Amazon. No wiring needed, just plug it in and you can still use the cigarette lighter plug for other things if needed. Edit - I see others already mentioned this.
You said it was the bearing bushing ... so not the bearing itself? What was bad about the bushing, and could it be detected while still on the car - ie, showed some kind looseness or play?
With the 6-speed manual was it also noticeable in lower gears too, which would make the rattle change in which RPM range it showed up if due to the driveshaft rotating.
Had a Infinity G35 that had symptoms like you describe, makes more noise when turning and putting side loads into the wheel bearing, noise was coming from the rear of the car. Jacked it up and checked for wheel play, none detected. Rotated the wheels off the ground and nothing stood out - also...
I hear a slight knocking noise at all RPM, not just around 2K RPM, and seems to get louder with more throttle load. Possible rod bearing? Can you hear that noise if you put a good load on the engine at low RPM (lug the engine), or while taking off from a dead stop?
On the Mustang there is no radiator cap, so you just put the vacuum device on the coolant reservoir tank? So the applied vacuum will cause the tank to completely fill and get sucked out through the vacuum device?
You mentioned "25 PSI vacuum". Is that the reading on the gauge, because the most...
Do you think a cheap cooling system kit like this would work good enough? There's a ton of them on Amazon.
I need to do a coolant change and trying to plan it out for best results. Good info in this thread on possible coolant change procedures...
Seems like a bad way to protect the compressor, because the throttle doesn't need to be anywhere close to 90% open to hit redline. You can hit redline in neutral in the driveway with little throttle opening, or hit redline going down the road if in a low gear with way less than 90% throttle.
They can't back spec a thicker oil because all the cars EPA/MPG tested were with the recommend specified oil, like with a 5W-20 grade. As mentioned, if it was EPA/MPG tested with a 5W-30, they could back spec it to a 5W-20 like Ford did on many of their vehicles when 5W-20 was becoming the...