Before the fuel pump went out this was a symptom,I thought, of a dying fuel pump.The pump did go out and was replaced. Only to have the same problem. It shows no codes, but dies at every stop light, sign, alley intersection. I used a MOC SYSTEMS throttle body and upper engine cleaner thru a manifold vacuum line to clean IAC and EGR. After the smoky clouds still died in the alley when I came to s stop. I'M LOST

 

Have you done a fuel pressure and leakdown test? Cleaned the MAF sensor? When was the last time it had a tune up?

 

Exactly...

 

What brand pump did you use?

 

the pump was aftermarket. the truck was doing this before the pump went bad. not positive on the tune up, it's probably been a while, it's not my truck.no on the fuel pressure and leakdown check and maf. check that out monday. it's at my cousins shop. he's ase cert. and thought it was IAC or TCC

 

problem was either crankshaft sensor or fuel pump. although it was new i returned it for a swap.installed crankshaft sensor & new pump at the same time and now it runs good.