Perhaps the most mysterious Engine problem ever! lol
whoever can figure this one out, i'll owe ya big time! haha
1985 Ford F-150
2 bbl carb
always had problems with stalling out, especially cold weather
driving with 2 feet is second nature to me in that truck. LoL! one for the brake, and one for the gas to keep the RPM's up when coming to a stop or in cold weather (and no it just doesnt need an idle adjustment, believe me, its not as simple as that lol)
just put a new fuel pump on, new plugs, wires are only 2 years old, same with distributor parts, air filter and pcv breather just replaced, also 2 weeks ago we yanked off the crappy azz stock 2 barrel carb and put on a holley 4 barrel 600 cfm carb. the new carb didn't have all the vaccum lines for the emissions in 85, so.....we yanked off all the emissions stuff, EGR plate, smog pump, etc. so eliminated all those vaccum lines associated with the pollution control. truck never passed emissions anyway and picked up some power.
twice so far (once before the new carb, and once after)
truck was warmed up, drove somewhere, it sat for about 15-20 minuts, go to start it back up and nothing
jumped it....nothing....it'll crank but wont kick over
starter fluid...nothing...crank but no start over
check the coil with my volt tester, shows its getting power
pull a spark plug, put it back in the boot, and have somebody crank the truck so i can see if i'm getting spark. truck fires right up on 7 cylinders!
shut it down, put the plug back in, and she starts right up but with a NASTY valve tap (never had a tap before, except these 2 times, and it only does it for about 5 minutes)
keep in mind that exact situation happened TWICE! once before the new carb, and once after. pull a plug and it fires right up. WTF could it be? haha
it has my mechanics stumped here...but maybe somebody can shed some light or suggestions for me.
probably taking the 4 barrel carb back and going for holley fuel injection too, but i doubt that'll solve the whole problem
Thanks in advance....i challenge somebody to solve this one! haha