Question about 2000 Jeep Cherokee

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I put every new parts such as both 02 sensors and cam shaft sensor and crank shaft sensor i already unhook or reset code and those codes never go away. What is the problem?

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1 Answer

The problem is that you need to understand OBD 2 Systems first

Then diagnose whatever the issues were.

You do not just put parts on any vehicle hoping to resolve an issue.

You only replace any part when it was found to have failed
or reaches a certain milage and is due to be replaced.

In most cases that will require the use of a volt meter or an
oscilloscope, as well as system knowledge.

There could be 20 things that could cause a problem

You have to use the codes you get,if any, to start a process
of elimination.

Posted on May 22, 2011

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Thsank you.

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