QuestionQUESTION: Hi Tom I have a 93 1500 pu 5.7l replaced fuel tank w/ pump preinstalled new lines, filter, tank had leak, lines rusted, now on hard take-off, it stumbles almost stalls out,sometimes does, then will slowly take-off, any help would b great thanks, Jim
ANSWER: HI JIM, IF THIS PROBLEM STARTED AFTER THE FUEL TANK REPLACEMENT,THIS SOUNDS LIKE FUEL STARVATION. YOU SAY FUEL PUMP PREINSTALLED ??? DOES THIS MEAN A NEW PUMP OR WHAT WAS IN IT WHEN YOU GOT IT ?? IF THIS IS A USED PUMP I WOULD BE THINKING ABOUT CHANGING IT. YOU COULD CK FUEL PUMP PRESSURE AND [[[VOLUME]]]VOLUME TESTERS ARE HARD TO FIND AS SHOPS HOWEVER,,BUT AT LEAST DO A PRESSURE TEST. SHOULD HAVE AROUND 4O TO 45 LBS I BELIEVE. WE HAVE HAD MANY PROBLEMS WITH AFTERMARKET FUEL PUMPS ,EITHER JUST WEAK OR NOT MATCHED TO THE CORRECT ENG SIZE AND YEAR..CAUSING LOW VOLUME..LET ME KNOW MORE WHEN YOU FIND OUT..TOM..
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QUESTION: Tom, thanks for such a fast answer, the only time it does it is on hard takeoff from stop if I just hit pass gear no problem still think pump? It is new came with tank, thanks, jim
AnswerHI JIM,I WOULD STRONGLY SUGGEST YOU CK THE FUEL PUMP PRESSURE..DID THIS HAPPEN AFTER TANK INSTALLED ???? THIS IS IMPORTANT TO KNOW. IF THIS HAS BEEN A ON GOING PROBLEM THEN YOU MAY HAVE A BAD TPS SENSOR OR MAP SENSOR. [THROTTLE POSITIONING SENSOR..] LET ME KNOW, I WILL BE HERE...TOM..
