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1994 GMC SIERRA HESITATION PROBLEM!!

\015 Well here is whats going on,\012 \012When I take off, I press on the throttle it sounds like its going to stall. Once going it runs great. But when I am coming to a stop and once i slowly let off the throttle it starts acting up like its going to stall.\012 \012If i idle out and pick up a little speed and then press the throttle it dont wanna hesitate. If I quickly let off the throttle coming up to a stop sign it quickly goes to idle instead of hesitating.\012 \012So I have changed the spark plugs, plug wires, cap & rotor, fuel filter. I have sprayed carb cleaner all around the intake to see if it was leaking. No leaks. I have checked all the hoses and they are all good. Looked at the fuel injecters as I reved it up and they seem to be spraying evenly. One thing I did notice is that there is a clicking sound coming from the injector area that I didnt hear before. I have taken the throttle position sensor and it turns fine. I have taken the Idle control valve out and cleaned it up. What am I missing. It has no codes. The engine light has never came on. Im stumped since the engine light never came on and there are no codes.\015 Posted / edited by AnonymousUser on : 24-01-2022

Answers :

How's the EGR Valve?

Have you looked at the TPS Sensor with a
scope, for bad spots or is it adjustable,that
you can do with a volt meter

The symptom sounds vacuum related

Is the exhaust converter as old as the truck?

O2 Sensor 100,000 miles or more?

Is the a MAP Sensor?
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