Question about 1995 Jeep Grand Cherokee
Shifts from 2nd to 3rd,., but wont go into 4th,.,.,. did on-off..comp. check,. flashed twice then pause then once,..,21,.,... oxygen sensor?,.. could this effect my transmission?
Sounds like the transmission is in "limp"mode it allows you to drive even though there is a problem with the transmission,the code 21 is probably a transmission manufature control code and not engine go to autozone and they can scan it for free,if you just had transmission fluid changed recently if you used anything other than what the manufature calls for like atf+4 then this is your problem,flush the system and do a fluid and filter change with correct fluid as by what the owners manual,or dealer calls for,don't rely on autozone to get it right.
Posted on Dec 25, 2008
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