Check to see if catalytic converter is stopped up,a clogged fuel filter can cause it to go bad .
possible fuel filter
check throttle plate builds up with carbon
Idle air control? Fuel pump? Coil?
Clean or replace the carb....also check the filter in the gas tank....tank must be removed and the filter is screwed into the bottom...
did you check the fuel pump/filter? mine does the same thing.
Idle Air control valve
85 THUNDERBIRD KEEPS STALLING. tHE ONLY WAY IT STAYS RUNNING IS WITH A LOT OF HELP. i MUST KEEP FEATHERING THE GAS PEDAL PUMPING IN GAS i HAVE REPLACED THE THROTTLE BODY, FUEL FILTER, DROP THE GAS TANK AND WASHED IT OUT. iDEAS?
You need to replace you Idle Air control Valve
when does it stall??
because it needs repaired
Could be many things change your fuel filter first or could be an idle air control solenoid problem .
Check for a loose ground.