NHTSA Complaint #10168750 — 1992 NISSAN MAXIMA

I HAD BOUGHT A CAR FROM A DEALERSHIP IN SAN DIEGO AND IT WAS DEFECTIVE FROM DAY ONE. THE DEALERSHIP SELLS ALL CARS AS IS SO I TOOK IT BACK TO HIM THE NEXT DAY TO HAVE HIM REPAIR IT. WE WENT BACK AND FORTH FOR ABOUT ONE YEAR AND HE ALWAYS SAID HE NEVER FOUND A PROBLEM WITH IT BUT YET, HE SEEMED TO ALWAYS BE DOING SOME KIND OF REPAIR. FINALLY, THE ENGINE BLEW AND I HAD IT TOWED BACK TO HIM. HE HAD IT FOR ONE MONTH AND SAID HE CAN'T FIX IT. HE SAID HE WOULD SELL ME ANOTHER ONE AND TAKE $1000 OFF THE OTHER ONE IF I COME UP WITH $700 TO PUT DOWN ON ANOTHER. I DID, HE SAID THIS CAR HAD A REBUILT TRANSMISSION. THIS CAR'S RPM'S KEEP ON GOING UP TO ABOUT 5000-6000 UNTIL IT FINALLY KICKS INTO GEAR. NOW HE SAYS THERE IS NOTHING WRONG WITH THIS ONE TOO. WHAT CAN I DO? *NM