1996 Chevrolet Express 1500 Q&A
1996 Chevrolet Express 1500 Question: engine performance
recently the van has experienced a total loss of power when accelerating. diagnostic codes p1133 and p1153 and p0151 were found. i replaced both upstream o2 sensors and the maf sensor. no good. found a vacuum leak in the upper plenum and regasketed that. nada. van hard start now and as soon as you touch the accelerator it bogs down and tries to stall out. i do have a high pitched whine coming from my fuel pump and when the van shuts off a sound like the fuel is surging back to the tank. could my fuel pump be causing the hard start and lack of power? - Visitor
absolutely. you need to get it checked asap before it fails totally. a simple test will confirm. make sure you change the filter too. roy - mastertech6371
usually when the pump wines its due for a change - bakerbaker
Items I've replaced : Crank position sensor neutral safety switch...
I have a 2005-2500 Chevy Cargo Express and a 2006-1500 Chevy Cargo Express and neither have a "security" light that comes on when the switch is made, never has. Recently all the evidence suggest th...