so im picking up a 93 with the straight six and auto trans..116k on the truck. it seems like it wants to die when ever you let off the gas.. any suggestions? haven't really looked into it, but just looking for a place to start. thanks a ton!!

 

vac leak, needs a tune up

 

Vacuum leak, maybe the line to the map sensor

 

i was thinking it might be a vac leak, ill have to check into it thanks. what have you found is the easiest way to test for vac leaks?

 

can of carb cleaner and spray all the vac lines

 

Same as they said, but wd40, and do all the seams of the manifold too.
Look at the vac line tree fitting thing at the back of the manifold a couple nipples rusted through on mine, and take the intake hoses off of the throttle body and look for a buildup of crap in the throats of the throttle body .

 

Climb over motor with engine running, rev up make sure EGR opens and closes, be that or vacuum solenoid that operates it on valve cover, take IAC off and clean good or replace it about 40 bucks