He only needs to do the first one to make it a pyrrhic victory for the guy with the grenade launcher.
The Fetts use them.
Green.
But not Fett Green, or Greedo Green, or Dagobah Green. I want Endor Green.
Pyrrhic? That’s my favourite kind of victory!
Green. I always thought that blue color looked ugly.
What? Why should i care about anything else? I’m not ever going to actually use it in battle. Nothing in the Jedi code says I must use an ineffective weapon.
We should nuke them from orbit. It’s the only way to be sure.
Blue!
No, Gree-- A
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The Jedi are never seen on-screen to do such a thing. The closest we see to a superpower that could save their ass from a rain of grenades is that burst of speed thing we see in TPM that lets Qui-Gon and Obi Wan flee the rolling droids.
They did this for a few hundred meters. Can they keep it up for a mile, to close with the gunner and slice/dice him?
The Jedi’s “precognitive” abilities couldn’t let them see a Sith Lord coming at them with a Separitist Army, and it sure a fuck dropped the ball on the whole “Order 66” thing. So you want me to believe that a Jedi is going to grab a grenade out of the air, mid-flight, (without setting it off; it has an impact fuse, you know), turn it around, and send it up to a mile away accurately all with the power of telekinesis? All the while dodging the other 4 or 5 grenades (per second!) that are coming in right on its heels with approx. a 0.2 second separation between rounds?
This is taking Jedi fanboy-worship to ridiculous extremes. :rolleyes:
Outside of unsubstantiated EU material (in which Jedi band together to throw starships across the galaxy with their Jedi mind tricks), we see no canonical on-screen evidence that a Jedi getting a few dozen grenades rained down on his head is going to do anything except die with a brief flicker of dumb surprise on their face before they turn into something more closely resembling a cherry slurpee.
My SWTOR Jedi use either yellow or blue exclusivly. Since yellow has been so rudely excluded, I guess I am going with blue. My Sith use red or orange.
Ex-Tank, Darth Vader can do quite a bit of Telekinesis, including deflecting a laser bolt with his hand. If he can stop coherrent light, he can probably stop grenades…
While force-choking the gunner. (bear in mind he force-choked Ozzel over INTERSTELLAR distances. A mile is nothing.) 
He is only seen (in canon) force choking people at long distances over TV. He might need that as a focusing aid.
In any case, Vader can deflect a blaster bolt with his hand, but it isn’t clear if he’s just using the armored attributes of his cyborg limb, his gauntlet’s armor or the force to dissipate the energy.
We’ve never seen TK used as anything but a strong arm, we don’t know that a Jedi can actually deflect a blaster bolt via using TK. And we’ve never seen anyone deflect anything at range.
Also, when Obi and Annie are standing like idiots next to the shape changer they completely zone on the fact that the dart is heading for her.
It’s possible that their precog only triggers at personal bodily harm. If that’s the case, can they detect a grenade aiming at the ground near them? Or do they detect it when the fuse ignites, leaving them in the concussion radius and having to parry 30 pieces of shrapnel?
Also, flame throwers.
Seriously, picture the battle in EP 2 with hundreds of Jedi walking around an arena. If those dudes had grenade launchers and flame throwers, I think it might have been a little less one sided.
Remember that scene in Matrix where he holds his hand out and stops every bullet mid-air? Jedi can do that. They were moving large pieces of metal around in Vader and Luke’s fights; Yoda can lift an X-Wing and if I recall correctly, managed to stop a huge boulder from falling on him in the Dooku fight. He then “threw” it aside with the Force. I think stopping grenades mid-air and lobbing them right back at their opponents is well within their range.
And if we want to go EU, Leia used a red lightsaber for a while. And (also EU), there are Jedi who can control weather. I presume they can cut off a flamethrower. Or they can do what Jean Grey did against Cyclops’ eyeblast, just push it back the same way she would push back something solid.
I know the OP basically said no EU, but all I can think about are the sonofabitch Dark Jedi in the Jedi Knight series. I could have a rocket launcher cheat-coded with infinite rockets, and that sonofabitch Desann would knock them all away, most of them right back at me.
He’s not TK’ing the blaster bolts. He’s at best deflecting.
Consider carefully the implication of hand-deflecting impact-fused grenades. Or even stopping one suddenly with TK powers. Even if you detect and stop it at sufficient distance to render it safe for you, what about the other 25-30 (assuming a 5-second burst) impact fused area-effect grenades that are landing all around you at, again, <0.2 seconds per grenade.
Every 1/5 of a second or less, for 5 seconds, a bomblet capable of blowing any man within 5 meters of detonation to absolute, literal shreds is landing within 5 meters of you.
There is nothing, nothing seen in any of the movies to suggest even the most bad-assed Jedi is going to survive that, short of running away very, very fast. Which we see them do on a couple of occasions.
Hell, they couldn’t survive six Clone-Troopers shooting semi-automatic blasters at short range with all their twirly lightsaber blaster bolt deflecting acrobatics.
There’s a reason the Jedi are all but extinct by “EpIV.” It’s called conventional warfare firepower. The Mk19 pretty much defines that for anti-personnel area-effect conventional ordnance.
And no, Vader didn’t choke Ozzel over interstellar distances. Vader was in his quarters, Ozzel was on the bridge. Since Vader was in overall command of that fleet, and Ozzel was his Fleet Admiral, I would assume that Vader’s quarters are but a short distance away from the bridge. He was at worst a short telephone call away.
So even if, in your scenario, Vader is able to pick out the sound of a fully-automatic grenade laucher that’s a mile away in the midst of the sounds of combat*, locate it, spot the gunner, and commence force-choking his ass, the basic goddamned laws of physics says that that gunner has already been firing for about 5 seconds (speed of sound, propogation of muzzle report, assumes std. 340 m/s speed of sound), there are already the better part of 30+ grenades flying through the air and about to start impacting at a rate of 1 grenade every 0.2 seconds, in less than 4 seconds.
- I assume we’re talking combat/battlefield conditions, and not "Vader was strolling though the lovely, peaceful forest, enjoying a bright, sunny day, randomly force-choking Bambi and Thumper to remind himself just how awesomely evil he is, thinkg lovely thoughts of blowing the everloving fuck out of any and all planets that have, are, or ever will harbor anyone who has ever had a rebellious thought, when HOLY FUCK SOMEBODY IS SHOOTING AT ME WITH A FULLY-AUTOMATIC GRENADE LAUNCHER I HAD BETTER DO SOMETHING ABOUT THAT LIKE FORCE CHOKE THAT SUMBITCH ON THE TRIGGER THERE I SEE HIM GOT YOU NOW YOU WEAK-ASSED BITCH
BOOMBOOMBOOMBOOMBOOMBOOM
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Uhm, no. They can’t. Go back and rewatch The Matrix, because you obviously missed or just failed to comprehend a major plot point.
Neo never stopped a single bullet, because there are no bullets.
Yoda and Vader were never seen to move more than one item at a time. The best example in your set of examples was Yoda catching the boulder in AotC, or maybe the flying Senate Saucer in RotS. Yay. He caught the last one, but dodges the half-dozen or so Palpatine had in the air at once.
Can he stop 3 dozen or more coming at him at 200 meters/second (720 km/hr or about 450 miles/hour).
Blue. But once I’m skilled enough to walk the earth with Jules Winfield, I’m switching to black. It will be badass.
When you are that bad, you won’t need a lightsaber, much less care what color it is. 
Mine would be orange.
I’ve a bad fanfic rolling around in my head wherein the main character (who’ll probably turn out to be a Mary Sue, because I’m a technical writer and no great shakes at fiction) gets exiled from the Jedi academy for some transgression. She’s exiled to a no-account world on the edge of the universe that’s not important to anyone, and finds there a cave full of crystals and constructs her own lightsaber. Anyway, the crystals are enough different from whatever crystals available to sanctioned jedi that her saber is orange.
But if I can’t have that, I’ll take blue.
Hokey religions and ancient weapons are no match for a good blaster at your side.
A more elegant weapon from a more civilized age!
Ancient?! They were pretty darn common just 20 years ago!
Wanders off, grumbling about the prequels