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GOT SAME PROBLEM CHEVY DAURMAX DEISEL HD 2500 CHANGE FUEL FILTER AND OIL &OIL FILTER . WHEN YOU COME TO A STOP SIGN OR RED LIGHT IT HAPPENS .I PUT IT IN NEUTRAL AND PUMP ON GAS SO RPM'S STAY AT 1800 RPM'S
The O/2 senser will not make it qit but the fuel pump and the ingition module will. does it start right back up? Fuel pumps heat up and quit sometimes opened the relay and it cools and or is cycled as you try to restart and it reclosesand you drive on. an amp test on the pump draw or even a scope test of the pump may isolate it as the bad boy. Pumps build up pressure and heat if the fuel filter is partly clogged. Change the filter as preventale maintanance and try to blow though the old one if it blows though hard it may be too late for the pump and you may have to change it too as the stuff that went thohg the pump that stopped up the filter. You only can heat the pump so much before its bad if you find it is change the relay also and check the ground wire where it connectes to the frame. The hanger unit that the pump is in fails too and it has to be changed on most models as you can't buy the pump any other way because it fails as often as the pump or is damaged as the pump fails. The ingtion ciol can fail, but not likly to start right back up you gota wait. The ECM cando it too but is not a common problem. Their may be engine control codes in the computer to help you determine the problem
Have the same year/engine truck and had same problem. Dealer fixed with an accelerator pedal position sensor. I think the part was about $300 and labor about $200...was warranty about 4 yrs ago, so not positive on prices. Also had no warning lights/no codes.
Are both batteries fully charged showing 12v? I ask this because I don't know if your friend's vehicle was charging. If it wasn't then when you put that battery back in your system it would reduce your overall voltage.
sounds like you need to clean the terminals on the battery and/or need to replace the battery cables, check both ends of where the cables attatch to the battery clamps, if they look discolored, melted or corroded in any way , replace them.
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