Joined: Jul 2009
Location: Imperial Beach, Ca (S.D.)
That could be an issue. If it's original, it could be near it's death date. Your turn signal switch is behind the steering wheel. Like I said, it does control both of them. Weird, huh? Maybe the brake switch might need to be replaced. Kind of sounds like the brake switch if you have to like slam on it to work properly. If the fuses are good now and still has the problem, it's one or the other or could be both. Check the wiring as well. Maybe you have something loose now. I did read that some people had to buy a new flasher for the sequential mod as well.
2004 Nissan Titan Crew Cab
1966 Ford Mustang Original 289
Edelbrock RPM Performer Heads; bored .30 over
Weiand Stealth Intake, Holley 600 CFM Carb.
Comp Cam 268H 9.5:1 Speed Pro Pistons
Patriot Tri-Y Headers w/ 2.5" H Pipe, Flowmaster 40S
Air ride system with 4 link CSRP Front Disk Brakes.
Ford 8 3.40 trac-loc rear end