This is not a normal missfire. First take off on test drive it runs ok, until you load it. Front injectors start to rise ms counts to around 25, while rear ms counts are around 12. At the same time this happens the short term adaptive on front bank shows positive #s around 20 to 30. We belive the ig...

We have a 2003 4.0l jeep with missfire codes. Cylinders 1,2,and 3 have higher counts than 4,5,and 6. scanner shows injector milliseconds on front bank much higher at times than rear bank.short term adaptive goes positive with injector ms. Fuel pressure is higher than spec at 65 psi. ( spec is 44-54 ...

2003 DODGE R1500 4.7 SINGLE ZONE HEATER HAS NO WARM AIR FROM VENTS, REPLACED T/STAT, FLUSHED HEATER CORE 2 TIMES. ACTS LIKE AIR POCKET. ONCE IT BLEW OUT 120 DEGREE TEMP FOR ABOUT 3 MINUTES THEN ALL OF A SUDDEN TEMP DROPPED TO 72 DEGREES. NO PRESSURE ON COOLING SYSTEM LIKE HEAD GASKET PROBLEM.