No service light on

Here is some data. The truck makes a popping sound, vibrate, and shakes while driving.

Engine Coolant Temperature(°C)168
Short Term Fuel Trim -Bank 1(%)0.8
Long Term Fuel Trim - Bank 1(%)-3.1
Short Term Fuel Trim -Bank 2(%)0.8
Long Term Fuel Trim - Bank 2(%)0.0
Fuel Rail Pressure(gauge)(kPa)45.7
Intake Manifold Absolute Pressure(kPa)4.6
Engine RPM(rpm) 561
Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.075
Short Term Fuel Trim Bank 1-Sensor 1(%)0.8
Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.770
Short Term Fuel Trim Bank 1-Sensor 2(%)N/A
Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.760
Short Term Fuel Trim Bank 2-Sensor 1(%)0.8
Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.770
Short Term Fuel Trim Bank 2-Sensor 2(%)99.2

Here are some number that I ran today at idle for about 15 minutes in my driveway after parked for about 1 hour 15 minutes. The truck does have a lack of power going up hills with some noise. I hope this helps.

Fuel system 1 statusCL
Fuel System 2 statusCL
Calculated Load Value(%)12.2
Engine Coolant Temperature(°F)181
Short Term Fuel Trim -Bank 1(%)1.6
Long Term Fuel Trim - Bank 1(%)-5.5
Short Term Fuel Trim -Bank 2(%)4.7
Long Term Fuel Trim - Bank 2(%)-3.9
Fuel Rail Pressure(gauge)(kPa)52.2
Intake Manifold Absolute Pressure(kPa)4.1
Engine RPM(rpm) 536
Vehicle Speed Sensor(km/h)0
Ignition Timing Advanece for #1 Cylinder(°)20.0
Intake Air Temperature(°F)125
Air Flow Rate from Mass Air Flow Sensor(g/s)0.01
Absolute Throttle Position(%)12.5
Location of Oxygen SensorsB1S12--B2S12--
Oxygen Sensor Output Voltage Bank 1-Sensor 1(V)0.730
Short Term Fuel Trim Bank 1-Sensor 1(%)1.6
Oxygen Sensor Output Voltage Bank 1-Sensor 2(V)0.700
Short Term Fuel Trim Bank 1-Sensor 2(%)N/A
Oxygen Sensor Output Voltage Bank 2-Sensor 1(V)0.800
Short Term Fuel Trim Bank 2-Sensor 1(%)4.7
Oxygen Sensor Output Voltage Bank 2-Sensor 2(V)0.700
Short Term Fuel Trim Bank 2-Sensor 2(%)99.2
OBD requirements to which vehicle is designedJOBD&OBDII
Fuel Rail Pressure(kPa)527.9
Commanded Evaporative Purge(%)17.6
Fuel Level Input(%)25.9
Evap System Vapor Pressure(Pa)-0.683
Barometric Pressure(kPa)14.5
Catalyst Temperature Bank 1, Sensor 1(°F)667
Catalyst Temperature Bank 2, Sensor 1(°F)631
Control module voltage(V)13.969
Absolute Load Value(%)14.1
Commanded Equivalence Ratio0.999
Relative Throttle Position(%)2.4
Ambient air temperature(°F)111
Absolute Throttle Position B(%)12.5
Accelerator Pedal Position D(%)20.0
Accelerator Pedal Position E(%)9.8
Commanded Throttle Actuator Control(%)3.1
Type of fuel currently being utilized by the vehicle GAS
Intake Air Temperature Bank 1, Sensor 1(°F)125
Intake Air Temperature Bank 1, Sensor 2(°F)140
Commanded Fuel Rail Pressure A(kPa)580.1
Fuel Rail Pressure A(kPa)630.9
Fuel Rail Pressure B(kPa)623.6

The noise seems to be coming from under the truck more like a grinding running over bump noise. I had my transmission fluid and filter service in March. About a month later this is when the noise started. Could it be the torque converter? I have a 6l80e transmission. The fluid is red when I check and I even changed out all the fluid in drain pan twice. There is not service light or code and it's driving me crazy. I do have an appointment for the transmission at the dealer. Should I take it to the dealer or transmission shop? The truck only has 86,500 miles.

Hello,

I did the rubber mallet check and these are the results. I heard a vibration sound at the converter and kind of a rattling. I could not tell if it was the converter or sound in the torque converter area. I did hear a little rattling at the end of my exhaust. I checked all hinges and hardware and all was tight. I did a heat check with a infrared thermometer and the results were as follows:
Converter top was hotter than converter bottom.
Near the the header, the top was less than the bottom pointing at the pipe, not converter.
I did these numerous times to see if anything change, but all was near the same results.
Is the correct way top of converter and bottom?

Thank you.

Hello again,

I removed the upstream sensors and went on a short drive. I still heard the sound, but not as much. My truck did feel somewhat better, but not for sure considering the load noise from sensor openers. So, should I get new catalytic converters and see if the sound goes away completely? And is sound still exist, than get transmission service? Is it possible to have a problem without fault codes?

Thank you for the assistance and Happy Fathers' Day!

Good morning,

I take my truck out on the road this morning and I do notice a difference with the upstream o2 sensors moved. The truck seems like it's not breathing well with some hesitation, vibration, and less power. Would these be a result of bad catalytic converters? What could cause them to go bad. I changed spark plugs, plug wires, and throttle body. I cleaned MAS, MAP, and air filter. The truck does have BBK shorty headers, MBRP cat-back exhaust, Airaid throttle body spacer, and cold air intake. I don't have a tune on the truck. Could these mods caused the converter to go bad without a tune? If I purchase converters, should I get the cat y-pipe or just cats? I appreciate the assistance.

Thank you.

Hello,

Yes, it does run better with them out verse in as you advised me to preform. You did say none of my truck numbers look out of place.

Thank you.

Hello,

I will be removing the converter this Saturday and test drive my truck. I will let you know the results and if anything I find wrong with the converters. I appreciate the assistance.

Thank you.