Is it dangerous to drive with a problem with the Catalytic Convertor 1996 Jeep Grand Cherokee 6 cylinder

Question edited for clarity and add some full stops and commas and stuff. That was one of the longest run-on sentences!
Question moved to model category.

Yes, the wires are probably from the o2 sensors on the Catalytic Converter but really could be from anything. Reconnecting them should fix the starting issue.

1-5-3-6-2-4 Clockwise alt="Cables order">

On Grand Cherokee oxygen sensor locations for 4.0 and 4.7 engines, check this diagrams...







The Oxygen Sensors (O2S) are attached to, and protrude into the vehicle exhaust system. Depending on the emission package, the vehicle may use a total of either 2 or 4 sensors.

Federal Emissions Package (4.0L and 4.7L engines):
Two sensors are used: upstream (referred to as 1/1) and downstream (referred to as 1/2). With this emission package, the upstream sensor (1/1) is located just before the main catalytic convertor. The downstream sensor (1/2) is located just after the main catalytic convertor.


California Emissions Package (4.0L engine):
On this emissions package, 4 sensors are used: 2 upstream (referred to as 1/1 and 2/1) and 2 downstream (referred to as 1/2 and 2/2). With this emission package, the rear/upper upstream sensor (2/1) is located in the exhaust downpipe just before the rear mini-catalytic convertor. The front/upper upstream sensor (1/1) is located in the exhaust downpipe just before the front mini-catalytic convertor. The rear/lower downstream sensor (2/2) is located in the exhaust downpipe just after the rear mini-catalytic convertor, and before the main catalytic convertor. The front/lower downstream sensor (1/2) is located in the exhaust downpipe just after the front mini-catalytic convertor, and before the main catalytic convertor.


California Emissions Package (4.7L engine):
On this emissions package, 4 sensors are used: 2 upstream (referred to as 1/1 and 2/1) and 2 downstream (referred to as 1/2 and 2/2). With this emission package, the right upstream sensor (2/1) is located in the right exhaust downpipe just before the mini-catalytic convertor. The left upstream sensor (1/1) is located in the left exhaust downpipe just before the mini-catalytic convertor. The right downstream sensor (2/2) is located in the right exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic convertor. The left downstream sensor (1/2) is located in the left exhaust downpipe just after the mini-catalytic convertor, and before the main catalytic convertor.

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The sensor will be screwed into the exhaust pipe or manifold and will have a one wire lead attached to it. It will be forward of the catalytic convertor. A 7/8" combination wrench should remove it but a special socket (at any auto parts store) may be required.

For a 6 cylinder, it is 153624. the distributor turns clockwise. For 8 cylinder is 18436572 the distributor also turns clockwise.

I'm not sure if you have a Cherokee or Grand Cherokee or what size Engine (2.5L, 4.0L or 5.2L). I have included all three below.

For the 2.5L
Firing Order:
1-3-4-2
Cylinders:
(back of engine)
......4
......3
......2
......1
Distributor:
(back)
.....3
1.......4
.....2
(front)
For the 4.0L:
Firing Order:
1-5-3-6-2-4
Cylinders
(back of engine)
.......6
.......5
.......4
.......3
.......2
.......1
(front of engine)
Distributor:
...(back)
....5...3
1...........6
....4...2
...(front)

For the 5.2L:
Firing Order:
1-8-4-3-6-5-7-2
Cylinders:
(back of engine)
8............7
6............5
4............3
2............1
(front of engine)
Distributor:
(back)
.........3
...4.........6
8...............5
...1.........7
.........2
(front)

Let me know if this helped or if you have additional information or questions. Feel free to contact me at FixYa.com!

I'm sorry I don't have more for you. I could not locate a dtc for "P1055", but did find some info for "P1035". It is for the bank 1, sensor 1 O2 sensor heater circuit. I would check fuse nos. 16 and 34 in the underhood power dist. center first. Next I would look at the connections to the O2 sensors, you should have 4 total. The catalytic convertors, yes there are two, are connected directly to the exhaust manifold, which is a split manifold. Cylinder nos. 1-3 empty into the front section while cylinders 4-6 empty into the rear section. There should be an O2 sensor before each convertor and after each convertor.

it should have an automatic tensioner if belt is loose then it needs to be replaced

I have a 1996 Jeep Grand Cherokee 6 cylinder. You might want to check the Ignition Off Draw (IOD) fuse in the Electrical Power Distribution center located in the black box located just in front of the coolant fill container on the left side under the hood. This is a 40 amp fuse, orange in color and is the orange fuse closest to the firewall. This fuse is used to put the jeep in storage if you don't plan to drive it for a while. Which would stop the current flow and not allow your battery to die. GOOD LUCK!

i would check with the dealer who changed the converter to check and see if the sensors were damaged while they replaced the converter or may be they have forgotten to hook it back up check before you throw away your good 02 sensr