86 Regal 307 stalling randomly

[Tom87GNX]

Hello,

I've recently been having problems with my 86 Regal. It has a 307 which is still computer controlled. The car has been stalling like its running out of gas, then sometimes won't start for a while or won't start unless you crank it for a minute or so. The electronic Q jet has been rebuilt, and the fuel pump has been replaced. Sometimes it will run fine, then out of no where it starts sputtering and stalls. I have driven it several times when it would stall, restart and drive fine unless under a moderate load, other times it stalls then restarts, and as soon as you put it in gear and accelerate lightly it cuts off again. I'm not sure what I'm missing, has anyone had this problem? BTW, I know it's not the carb as I've switched it to a known good one and had the same results but its definitely a fuel problem. (Carb jets won't squirt when this happens, like float bowl is empty). Could it be a defective pump? Or a cracked rubber fuel hose somewhere sucking air? Please any insight is greatly appreciated.

 

[Omnivium]

Friend of mine had a similar problem with a 87 Chevy Celebrity, I'll ask him.

 

[Tom87GNX]

Update!!!!!!!!! Problem is solved.

As I suspected, the rubber fuel lines were the culprit. I replaced the rubber lines by the tank, and before the pump. I also blew out the metal line with compressed air before installing hoses. I can now run full throttle without hesitation or stalling, car actually does holeshots now with very little effort, leaves J hooks if you floor it from a complete stop. Not bad for a 100K 307 olds.

 

[Tom87GNX]

Problem is not solved, although it happens way less. The rubber hoses definitely helped but something else is still wrong. I'm thinking rotted sending unit tubes allowing air into lines or something in the tank that randomly gets drawn towards the pickup tube and stops the flow. Guess I'm dropping the tank tomorrow, gotta check it, at least I will know either way.

 

[TheBandit203]

My car is doing the Same thing and I removed all computer control components I chocked mine up to a crap distributor and have a thread on this as well.