I have a completely stock 2003 5 speed Rubicon with 106K miles oil changed every 2500-3k. At 100k I replaced the radiator, water pump, thermostat, hoses, and fan clutch all mopar. I also installed autolite XP985 plugs at 105k soon after the cel would show up with a p1022 tps low voltage. Shorty after the cel I had very sluggish acceleration and very poor gas milage. So i replaced the TPS on thursday and everything went back to normal till this morning. When accelerating it moves but there is no power until 3k rpms. below 3k rpms the the speedo just barely climbs. When i press the gas slightly I hear a sound i cant describe there is also a new smell under the hood that i've never smelt before almost like burning plastic but not. I plugged in my scan tool and no codes all live data numbers seem normal. I already purchased an NTK upstream front o2 sensor hoping that will help. Any help or input would be great.
Little to go on but perhaps major vacuum leak making sound and affecting power
That would have to be a monster leak. My entire driver side fender is crushed and all the vacuum components with it. No cruise or heat selection and an audible hiss @ 1700 rpms. No loss of power or economy for the last 2 months it's been like that.
Jeeps never get stuck or broke. Just parked in odd places for an indeterminate length of time.
The TJ's TPS is self adjusting and has been since day one. Earlier vehicles have TPS's that need adjusting, but not the TJ's... it is not adjustable.
For the OP's problem, I'm leaning towards a bad upstream 02 sensor at this point, especially based on the odor you detected. A bad 02 sensor can cause the PCM to throw the air/fuel mixture ratio to full rich which will cause gasoline-rich odor. The '03 Rubicon has two upstream 02 sensors, they are mounted just above the two pre-catalytic converters mounted low on the exhaust header down pipes.
A bad 02 sensor will not always light the Check Engine Light or generate a diagnostic code.
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I don't think i have a vacuum leak but i did notice that my pcv elbows on the valve cover are leaking oil. The pcv or ccv at that back of the valve cover I think needs to be replaced the end that attached near the throttle-body looks worn. What is that hose called so i can replace it?
I'm changing both upstream o2 sensors tomorrow if that doesn't fix the problem could it be the fuel pump or coil? I also noticed my passenger front break is worn significantly more then the drivers side could the caliper be stuck and causing this problem? When i would rotate my tires i notice the front passenger tire would always wear more then the rest but the tire was worn evenly.
Chilton manual says if during breaking it wants to turn to one side it's defective or oil contaminated brake pad.Excessive wear on rotor or pad. Loose or defective front suspension component. Defective caliper assembly. Brake pad to rotor adjustment needed for automatic adjustment. Loose caliper mounting bolts. Incorrect wheel bearing assembly.
So its not the o2 sensors or the throttle body. After i replaced the the sensors and cleaned the throttle body i got it started right up no cel but it does not move until i get to almost 3k rpms trying to reverse out of my driveway. It feels like something is preventing me from moving until I get on it i do not feel any vibe or anything. Could something be loose be in the drive train. My 4wd works fine and the problem is still there in 4wd.
I think your right about the clutch I'm going to order a luk clutch and flywheel now. Is there anything else I should look for or replace while I'm changing the clutch? Is there anything that could have caused the clutch to go bad because there was no warning signs other then the tps cel.
Also people riding clutch ie part way engaged as one fellow liked to do maneuvering a trailer backup up hill can cause clutch burn wear
Basically clutch should have minimal time anywhere but full up or full down on pedal you can slow upward speed when shifting but never use it part way up on pedal for any length of time or you burn clutch
Once it starts to slip it gets hotter and hotter and it is all worse from there
Usually first sign of slippage is on highway in high gear if you stomp on gas and rpm rise without proportional vehicle speed increase you know clutch is starting to slip