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my engine light came on and the code reads P0420=catalyst efficiency below thershold bank 1, then in the manual it reads further as monitor and/or exhaust system fault my question is i have replaced both 02 sensors on the exhaust system is there a "monitor" somewhere else. i have also had the...

i have two questions what is the capacity of the coolant on a 96 2wd 4.0 w/ air? and what is the ratio of coolant to water. i have had a bad mileage problem for some time now and fond out this may be my problem.

i have a code, P0125, which reads as a clsd loop fuel ctrl insuff. coolant temp. my coolant temp at the time was 138deg. my mileage is at about 16 mpg city/highway. i have changed the coolant temp sensor that is located to the left of the throttle body but still have the same code, can any offer...

i was at the muffler shop and the guy there there said if you have a bad cat you will notice a big differance in power loss, which i did not. so i find out the cats are not bad, talked to some other mechanics and there suggestions are vacum leak, or an air intake problem with that in mind anyone...

i replaced both 02 sensors, my mileage did not improve it seems to have made it worse. does anyone have any suggestions? i have 100k, and have a bad cat that i did not replace could that be the problem or is there another sensor that controls the gas and air flow.

my gas mileage is just getting worse, if i replace the sensors that are before and after the cat which is bad, will it improve my gas mileage, or must i replace the bad cat at the same time? i have just over 100k

is there an easy way to remove the oil filter. other than having a quick change oil place do it. i have tried the filter wrenches but the oil filter is so high up you cant get a turn on it once you have tightened it around the filter.

the lumbar support has a horizontal metal brace that runs along the back of the seat it has come loose does anyone know how to repair it or had this trouble with their's? also i have a bad cat, i would like to replace it with an aftermarket one that sounds a little better than the factory with a...

the lumbar support on the driver seat has a support that runs horizontally across the back of the seat it has come loose. has anyone had this problem and know how to fix it? also i need an after-market kit to relplace the cat i would like something that sounds nice but is not going to cost what...

i have a problem with the rear left brake the emergncy brake is rubbing on the inside of the rotor, but only in a small area. it is enogh to make a rubbing noise like the brake is locking up but it is only in one spot i have changed the rotors and pads but still seem to have the same problem the...

i have had a problem with the back left brake i've changed the rotor and pads, my problem is i have a rubbing sound almost like the rotor is warped but when i take it apart the only wear marks are on the inside of the rotor where the emergency brakes make contact. i don't know why it does it...

i want to know if there is a way to test or jump out the catalytic converter sensor. when i hook up to a diagnostic computer the reads cat. bad, but i want to make sure it's not a forty dollar sensor rather than a eight hundred dollar converter.

i want to program my new transmitter for the auto door release but i don't have an owners manual i can get one to work but the second one will not any suggestions?