Question about Cars & Trucks
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Posted on Jan 02, 2017
SOURCE: dtc codes p0155 & p0051
I had the same problem and found out I was sold the wrong sensor, my 4.0 has four, they are all different, when you install a new sensor, you must make sure you clear the trouble code before you start the engine, ignition on engine off, that should do it, it worked for me, also if you have your own scanner and can erase the codes yourself, the wrong 02 sensor will turn engine light on with cold start, then after I erased the code it would stay off all day until the next cold start, thats when I found out my new 02 sensor was for bank 1 sensor 2, and not bank 2 sensor 1, hope this helps
Posted on Jan 19, 2009
Ther are at leat 3 and maybe 4 o-2 sensors in that particular truck...one on each exaust pipe coming down from manifold...and one after convertor on each bank....Pass.side before convertor is bank one,sensor one ..behind convertor is bank one sensor two..drivers side before convertor is bank two,sensor one...behind convertor is bank two sensor two(If equipped with four....scan will tell you which one is bad....good luck..lee
Posted on Mar 28, 2009
the O2 sensor for bank one sensor one is located between the catalytic converter and the engine in the exhaust head pipe. see photo of your engine cylinder layout, the sensor u want to replace is the one at the cylinder #1 bank on right.
Posted on Apr 15, 2009
there are two sensors or more if it's a v 6 or v8 you have a post catalytic converter 02 sensor which is on the exhaust manifold and you have another after the catalytic converter they will be on the exhaust system in case your not sure what the exhaust system looks like, the 02 sensor looks like a spark plug it will have a quick disconnect that you have to unhook before you unscrew the sensor, 02 sensors will fail in three ways the heater burns out or the sensor gets lazy and does not cycle fast enough for the computer or gets fowled out by carbon and does not read at all, most of the time it's the sensor before the catalytic converter or on the exhaust manifold you will need to buy a special 02 sensor socket to remove it. It has a slot for the wires in it and will allow the socket to let the wires hang to one side the socket costa about $20.00 at any parts store if you have a schucks or autozone you can go there and ask them to test your car and it's free they can pull the code and tell you which one it is and point it out to you and you can buy the sensor from them once it is replaced the light will go off by itself, a heated 02 sensor costs on average $40.00 may be more or less not including sales tax.
Posted on May 28, 2009
SOURCE: 2001 grand cherokee idles funny
Hi there, do you get water from the air conditioning unit entering the passenger foot well, if so then perhaps water is dripping onto the electrics below and causing these problems (blocked evaporator unit) alternatively, get jeep to reset your system (2 minute job) and this should work, keep an eye on it as the first new code that appears should be the problem area, hope this helps
Posted on Jul 29, 2009
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