Alright so my 82 Ram 50 is giving me a slight problem. While driving along let's say in 4th gear at around 50 mph when I let off the throttle and shove my shifter into neutral then hit the brakes to slow down at say a stop sign just as i'm about to come to a stop my engine starts stumbling and then stalls on me. All other times my truck runs perfect. It idles fantastic. Moves nice and fast. Is a great truck but this stopping issue and the kicker is even when I just let it slow on it's own no brake at all it does this.
I have tried a few things. I have disconnected the brake booster vacuum hose and plugged it and it still happens. I have fiddled with the idle mixture screw and idle speed screw till I am blue in the face only for it to help a little and then sometimes my truck still stalls after doing adjustments. I'm out of ideas but know that when it starts to stall if I tap the gas it revs right back up. If I slow down with the hand brake it doesnt do this. I've sprayed all over for vacuum leaks and found none. I installed a vac canister and still the stall happens.
I notice my vac advance likes to pop noticeably loud and tick as it works. I'm not noticing any mentionable movement in my distributor. I do notice that when shining my timing light at the crank pulled the notch likes to move back and fourth not majorly but is definitely moving between 2 and 4 degrees as the truck runs when I work the throttle under the hood.
I'd like to get this stall issue under control as it's literally the only issue my truck has.
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