Opponent is very loose preflop and bluffs much too frequently.

I led out on flop for info. I think A high is good. He calls flop and turn quickly... I think he has a flush draw. He does NOT have a T or a FH.

Check or bet the river? What can I get him to fold on the end if I don't have the best hand?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $1/$2
6 players


Stack sizes:
UTG: $179.70
UTG+1: $183
CO: $200
Button: $148.80
Hero: $200.60
BB: $73

Pre-flop: (6 players) Hero is SB with
3 folds, Button raises to $7, Hero calls, BB folds.

Flop: ($16, 2 players)
Hero bets $12, Button calls.

Turn: ($40, 2 players)
Hero bets $32, Button calls.

River: ($104, 2 players)
Hero checks, Button bets $34, Hero calls.

Results:
Final pot: $172