4.7 Jeep Engine
4.7 Jeep Engine . A few models moved to the 4.7 ho variant. It can also be seen inside the oil cap, due to a faulty pcv valve. Generally speaking, this happens because there are air pockets in the cooling system. Jeep 4.7L engines from www.gotengines.com Buyers of jeep vehicles in 1999 were treated to this new offering by chrysler. The engine upgrade to the v8 series as well as to the torque did not go unnoticed.