Question about 2004 Jeep Grand Cherokee

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Code p1726 transmission slipping

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It dont lie, it is slipping.
the TCM sees the input speed and output speeds, (trans)
and knows the slip rate. (TC's do slip naturally) and then if it slips too much. it throws the DTC,
must folks do the full flush service. and pray it fix it. (filter and all new ATF fluid)
is the ATF LEVEL too low or too high?, (the test is in the operators guide. not checked at all like the engine, RTM first)
some newer cars have no A./T dip stick to do this, and needs under car, check.

just take it in for service. and check the trans.

ATF = automatic transmission Fluid, RTM means read the manual.

Posted on Mar 31, 2014


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