1994 f150 6 cyl engine shuts down every 10 min restart after 5 min

SOURCE: chev. S10 starts but stop's immediate when hot

check compression, at that many miles the exhaust seats could be wearing up into head causing valves to stay open longer loosing compression,while the engine is cold oil is thicker ,lifters pump up further do to thick oil when oil thins out you have less lifter pump up thus working working properly check compression cold should be 125 low to 155 any less than 100 you have valve prob.

SOURCE: 1999 saab 9-5 stalls without warning won't restart for 30-40 min.

Hello.i had similar problem.replaced ignition coil+cranksensor,driven it for several months now.a.ok.

SOURCE: Fuel pump does not engage until check engine lite comes on

It may be worthwhile to check the power lead from the ignition switch to the pcm. (may be a dark purple wire) If it has partial connection, it may take several turns of the key to "burn through" and make a decent electrical connection. This would not show up as a code otherwise it would set a code every time you started the vehicle. Same applies to external pcm ground leads. A poor connection often causes some heating at the connection point due to extra resistance there. After you turn it off, it can cool enough to again break the connection. Make sure that you check voltage at the wire behind the pin connector and again at the pin itself as many times the problem is where the pin joins the wire.
Could be wrong on this butr being here without the benefiot of "hands on" testing, it's my best guess.

Testimonial: "I will check your suggestion out today..thks"

SOURCE: 1994 jeep wrangler 6 cyl 5 spd no start

have u ck out the ignition switch [not the key & tumblers],, or the neutral safety switch to see if u have power ,,also seen broken wire at solenoid on starter too,,hope it helped,,