tahoe tries to stall while running

have done wires & plugs, o2 sensor, ignition coil, fuel filter, injector cleaner, nothing kicks out on the computer and no check engine light? any ideas?
runs rough when starting, then tries to stall out when running?

Check the coolant sensor and clean the throtle body.

Is your 95 a TBI?? If so it sounds like your TBI is going out on you.

turns out the tune-up with the new plugs and wires, it was a bad set of wires, runs like a charm again, who figured?:D

Check the coolant sensor and clean the throtle body.


I have a 2000 doing the same thing. What does the coolant sensor do?
My problem gets worse after the truck has warmed up for the day and I have problems cranking it for the rest of the day until it is cold again..
HELP?