1990 olds silhouette van?

Question

van has 3.1 motor runs fine but after about 30 minutes when you come to a stop it acts like the choke is stuck and stalls it takes quite a few tries to get going again it runs fine until you stop. don,t know mutch about this motor may be a censor .let me know if you know about my problem.

Answer 1

It's the cold temp. sensor. What's happening is the sensor is telling the motor that it's cold or isn't working at all in wich case the ECU defaults to cold settings. In short the engine is flooding out because of that bad sensor.