I have a 2002 Jeep Grand Cheerokee Laredo 4.0. I don't know much about cars, and recently had bought this Jeep off of a private owner that had said it had no problems but now after owning it for 2 1/2 months it has PROBLEMS! And it's becoming a bit stressful!
I've taken it to 2 different shops but both shops have given me only predictions on what is wrong with it and I have no idea which mechanic to believe because they are both giving me different answers. So let me explain what it is doing and hopefully someone here can help me figure this out to get it repaired.
The first thing that happened was the check engine light came on, so I had it tested & was told I needed spark plugs, so I had those replaced. The Jeep was fine but a week later the check engine light came back on, so I took it back in & was told my oxygen sensors need to be replaced. I'm working on getting those, in the meantime a few day go by and the Jeep begins to hesitate and jerk at stops and when I leave from being parked.
Now I don't know what is wrong with this??? Can someone help explain this? I am also now experiencing overheating of my engine and ticking. Not knocking but ticking. I have checked my radiator & have discovered the previous owner must of put stop leak in the radiator at some point according to the mechanics so now I was told that needs to me completely flushed out of the system & needs a new radiator because the radiator looks to have been patched and may not be holding. Any answers on all of the please?
EDIT: The codes I had printed out were P0135 02 Heater Circuit (Bank 1, Sensor1), P0141 Oxygen Sensor Fault, Right Side, Post Catalyst, P0155 Oxygen Sensor Fault, Left Side, Before Catalyst, P0161 HO2S-22 (Bank 2 Sensor2) Heater Curcuit Malfunction. Then it said Definition: Code P0135 indicates a fault in the bank 1, Sensor 1 O2 Heater electrical circuit for a predetermined period of time.