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  1. S

    87 350 tbi runs fine until i stop

    Latest update to my horror story; start the truck it idles fine. Drive it and as soon as you go to stop it starts missing and cutting out. Put it in park and turn it off then restart it, runs fine again until the next stop. No trouble codes. Parts replaced to this point: spark control module...
  2. S

    87 350 tbi runs fine until i stop

    Found the test port. Right where its supposed to be. Had a brake controller mounted in front of it. btw, went ahead and replaced idle air control today, didnt want it to feel left out. Auto mechanics teacher at one of my high schools said he had a reader. Going to get it tomorrow. Im leaning...
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    87 350 tbi runs fine until i stop

    i talked to one of our auto mechanics teachers today, i work maintenance for a school system, he said the first thing he would check is fuel pressure. he lent me a gauge, checked when i got home, 13psi. so i dont think thats the problem. anybody familiar with the knock sensor or idle air...
  4. S

    87 350 tbi runs fine until i stop

    i tried the 02 sensor to.day. no change. went ahead and changed cap, rotor button, and module since i didnt know how long ago they were replaced. helped some but still not right
  5. S

    87 350 tbi runs fine until i stop

    I'll try that today. This truck hasnt been driven much in the last few years. Previous owner just used it for his hunting truck. It only has 119k on it. I'm sure that sensor has never been changed. Thanks
  6. S

    87 350 tbi runs fine until i stop

    i bought an 87 chevy 4x4 with a 350 recently. the truck runs fine when i first start it. if it idles long enough it starts cutting out and goes dead. it will also run fine until i stop the first time and then it stumbles again. i found out from the guy i bought it from, he bought it new btw, a...

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