Originally Posted by beargfs57
I'm Bear from Al. Have a problem with 08 Grand Cherokee 4.7. Ran hot on Sat. bad water pump. Changed the wp and theromostat. Ran hot again. Now will not start without pedal to floor, then runs rough like multiple misfires. Get mil and etc lights. Have not checked codes . Getting code scanner tomorrow. Any ideas
The running hot part could be air pocket in system I had a buddy put 180 tstat in and started driving within 2 minutes temp warning went off. Drove back and burped it air pocket came out and it was good.
09 laredo 4.7 28x w/ QD2 Superchip 91 Perf tune w/trans app, K&N CAI, jet 180 tstat, Bilstein 5100 struts and shocks, srt8 front & rear swaybars. 255/65/17 General Grabber at2's