Question about 2000 Jeep Grand Cherokee
The book , called the FSM answers that. and that code. 138
you never said which engine, (or if its a california car? they can be diffr)
but 138 is clear.
its bad, or its wires are all melted and shorting together.
the sensor is 1/2 (jeep parlance) for B1-S2, bank1 sensor 2.
bank one depends on the engine.
bank one means that exhaust band that resides near cylinder 1.
sensor 2 means, that sensor to the rear of the CAT.
1: check the wires there. melted? from sensor upward , no burns.
2: bad sensor.
its the same answer for all cars. all engine, gas. 1996 to now.
the rear sensor only watches the CAT, to see if its works.
the rear sensor does not control engine fuel rates.
see emmision chapter
see exh. chapter
see page 4. see there are 2 engines, and FED and Calif.
this page 4 is clear, no? see them there.?
the inline 6 in calif runs a very odd, split exhaust manifold.
and has not 2 sensors but 4. (odd duck that)
if a 4.7L see page 6. (pdf pages)
that cover this, ask questions.
Posted on Jun 05, 2014
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Posted on Jan 02, 2017
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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