my Calais has been off the road for 1 month now mechanic changed the pim power train interface module car ran for one week every one telling me it's the fuel sender witch is what i thought but mechanic disagrees i was told i can get sender unit for like 100 dollars rung motors thay said got to get hole unit and it's 570 dollars any help pls need my car back driving unroad worthy piece of crap totally unsafe but all i got and i got new born baby need my car so my miss and baby aren't stuck at home all the time as i won't take them in the car only use it for work