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99 cherokee overdrive issue

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Old 03-12-2011, 01:10 PM
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Default 99 cherokee overdrive issue

my 99 sport isnt going into or staying in overdrive. it just started doing this yesterday ive had no other problems with the trans. i checked the fluid level and it was a little low so i added too it. drove it again and it still does it. if i take it out of drive and down to 3rd then back up to drive it will go into overdrive usually. im at a loss so i need some advice on this one lol
Old 03-12-2011, 01:37 PM
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Almost sounds like the TCM or end clutches are going bad.
Old 03-12-2011, 01:49 PM
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any check engine light?

if so, get it checked. if it shows a throttle position sensor issue, then that is likely the cause of your issues.

if the tps is reading "low voltage input" on the scanner, you could have a bad alternator...just had that happen. was causing throttle position, running, and shifting issues...while still charging the system at 1.2v rather than 12v.
Old 03-12-2011, 01:50 PM
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Originally Posted by JeepCoMJ
any check engine light?

if so, get it checked. if it shows a throttle position sensor issue, then that is likely the cause of your issues.

if the tps is reading "low voltage input" on the scanner, you could have a bad alternator...just had that happen. was causing throttle position, running, and shifting issues...while still charging the system at 1.2v rather than 12v.
He's alive?
Old 03-12-2011, 01:51 PM
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Originally Posted by Gee oh Dee
He's alive?

yeah. been busy. brother's medical issues, work, fixing things at home, repeat. don't know where sleep fits in there, but it does...somehow.
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