Grand Theft Auto: San Andreas Walkthrough

T-Bone thinks the syndicate is getting played, but Jizzy doesn't agree. Just then, T-Bone gets a call from Mike Toreno and he's in trouble. The van he's in was just hijacked and he doesn't know where he is. CJ has to save him before the battery on his cell runs out.

Mike thinks he's near some machinery, so head to the first stop: a construction site, marked by a yellow blip on your radar.
Once you get there, you'll find that's not the right spot. Mike then says he thinks he can hear seagulls, so perhaps he's near the docks? Head to the next stop, marked by a yellow blip on your radar.
As you pull up, again he's not there. Finally, Mike says he thinks he can hear airplanes. Only one last stop: the airport. Get there by follow the yellow blip on your radar.
Once you enter the airport, you'll notice the security gate blasted through. In order to find Mike, you'll have to follow the signal strength on his tracker. Pay attention to the bar at the top right of the screen.
Once you pass through the gate, stay to the right and follow the street up onto the runway and landing zone. Make an immediate left.
Pass by the private jets and continue heading straight. Your signal strength will begin to rise.
The van will spawn in one of 2 places: A) either at the end of the long runway or behind the communications tower near the grouping of helicopters.
Once you find the van, chase it down and attempt to spin it out. The thugs will all step out and begin shooting at you. Take them all out, but be careful not to blow up the van. If you it explodes, you will fail the mission and Mike Toreno will be dead.
Once Mike's been rescued, destroy the van. Aim for the gas cap area to make it explode nearly instantly. Then, hop in the limo (or any vehicle nearby than carry both T-Bone and Mike.
Exit the airport by heading toward the yellow blip on your radar.
Once you exit, you'll immediately encounter a 3-star wanted level. You'll have to lose the heat.
Head toward the Pay 'N Spray on your radar (which is located just down the street from your home garage).
Once you've lost the heat, head back to the Pleasure Domes, marked by the yellow blip on your radar.