Hello, I have a 2003 impala with a 3.4 motor. I am having a problem with the cooling fans not working properly. I do have a genisys scanner with 2.0 software that I just got. I hook it up and watch the temp on there. The fans do not kick on until 230 degrees and it is both on high. If I run the ac they both will kick on high for a few seconds at 217-220 degrees and the temp lowers a little then the fans shut off. I have checked all the fuses and they are good. I have switched the relays and it doesnt seem to change anything. The will both also come on if I unplug the coolant temp sensor. What would you suggest to find out what I need to replace. Thanks
have the same problem?
Sunday, March 31st, 2013 AT 5:03 PM