when my 96 2.4L dodge caravan sits for several hrs we have to pump the starter... it has a newish coolant temp sensor and a new plug for that. when we plugged it into a comp we dont get an error, but when the van is cold the temp is at around 95 degrees celcius about normal operating temp. this has been happening for a while and we've already gone thru a new starter. the mechanics are split. one says its the fuel pump being under powered. others say it could be anything from a defective sensor, a bare wire leading to the comp or potentially the comp. i was really wondering which rought is more correct

 

Welcome to DF
Okay, You need to jump start the van because the battery is either low or dead? Have you check the battery for a draw, causing the battery to go dead? I see you have checked for codes using a scanner to the computer. What is the problem with the temp gauge? reads too hot or cold? The fuel pump being under powered could be from a battery problem. I recommend to have the battery recharged and check to see if it needs to be replaced.