Had an issue on a mitsubishi, similar to yours. Turned out to be a peice of plastic film floating in the fuel tank it would suck up to the fuel pick up and stop, then it would settle and away you go untill it got sucked up again. Good luck finding your issue
both coils and condensers can fail when hot and then return to normal as soon as they cool. then fuel line, filter or tank pickup restriction but you tested for that. poor connection somewhere in the ignition circuit? or alternator or voltage regulator failing and reducing voltage to the ignition? though it wouldn't crank after. vapor lock? fuel line getting too hot? How hot does that second filter get?
Thanks for your help. You are the only one with anything to offer. As you noted, I already ruled out several things and it isn't heat related (vapor lock etc) as it will even do it cold. Just the same, it seems to be running fine not. Unfortunately, we will never know why. I like to do things one at a time, but my partner jumped in to "help" and did a couple of things as well and now we have no idea what worked. Since the car was in storage for a few years and they may have had non-ethanol premium in it, I still think it was water. I put a good shot of methyl hydrate in the tank, so that may have done the trick...but we will never know.
Had an issue on a mitsubishi, similar to yours.
Turned out to be a peice of plastic film floating in the fuel tank it would suck up to the fuel pick up and stop, then it would settle and away you go
untill it got sucked up again.
Good luck finding your issue
That sounds like a nightmare. The car runs fine now, but due to the "help" I got that tried several things at once, we will never know what worked.
I'd be pulling the tank out and checking inside, could it have some earth/ ground issues
I checked inside the tank with a scope and the earth can also be checked without removing the tank.
both coils and condensers can fail when hot and then return to normal as soon as they cool. then fuel line, filter or tank pickup restriction but you tested for that. poor connection somewhere in the ignition circuit? or alternator or voltage regulator failing and reducing voltage to the ignition? though it wouldn't crank after. vapor lock? fuel line getting too hot?
How hot does that second filter get?
Thanks for your help. You are the only one with anything to offer. As you noted, I already ruled out several things and it isn't heat related (vapor lock etc) as it will even do it cold. Just the same, it seems to be running fine not. Unfortunately, we will never know why. I like to do things one at a time, but my partner jumped in to "help" and did a couple of things as well and now we have no idea what worked. Since the car was in storage for a few years and they may have had non-ethanol premium in it, I still think it was water. I put a good shot of methyl hydrate in the tank, so that may have done the trick...but we will never know.