headache 5.0
 

ok lets start at the beginning, 87 5.0 with aod
runs fine for 10 mins each morning and quits half way to work, restarts, sputters and dies, continues to do this for any whereb from 10 mins to half an hour, we have replaced the module, pick up coil, coil, tested for codes and at first we came up with a few but upon retesting only came up with a code 18 which we understand to be spout connector.
after the car sits for anywhere from 10 mins to half an hour it will restart and more ofetn then not make it the rest of the way to work. although sometimes when it does restart it runs like crap.
one contact suggested the air bypass valve. does this sound reasonable?
any help would be appreciated
oh and yes we here the fuel pump running and have pressure at the rail to eliminate those right off

Probably not the by-pass valve, since I'm running with mine disconnected electrically, still mounted to TB. Even if that valve was bad it would still run as long as you kept your foot on the throttle enough so that it wouldn't stall.

ya we discovered that while playing with it tonight

Man, that sounds like what my old 86 F-150 (302) was doing. Unfortunately, I didnt know jack about cars at the time, so I dont know what the problem was. I just know that Ford didnt either, and we had to put a new motor in it. I am sure there is a fix for your problem though. Good luck with it.