americanricer87
NAXJA Forum User
- Location
- Cincinnati
Ok guys I have been chasing this issue since i bought my jeep in February. A little background on it: 2000 Cherokee sport 4.0 guy installed a new cyl head but with original lifters. The jeep had an issue ended up being cracked head. I bought it and noticed a stumble/ missfire under a hard load and it sounded like a popping inside the exhaust. So I pulled the head replaced the lifters, it quieted the engine down but still acted up. Replaced the COIL ON PLUG, ngk plugs, crank sensor, all of the fuel injectors, and tried running seafoam in the tank. Still does it intermittently on the highway. Plugs show a sign of being lean. At idle the fuel pressure is 45psi even while power braking the jeep. Im running out of ideas as to what would be causing my issue. Someone please help maybe im missing something simple.