Question about 2001 Jeep Grand Cherokee

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Not shifting 2 to 3 automatic tranmisson

Will not shift from 2 to 3 automatic tranmisson rpm go to high 4000 rpm not shifting

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  • Jeep Master
  • 636 Answers

The first thing I have to ask you is When was the last time the transmission was serviced? Transmission fluid and filter change?
A thumbs up would be greatly appreciated if this answer is helpful to you. Have a GREAT DAY and GOD BLESS YOU.

Posted on Nov 22, 2014

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Posted on Jan 02, 2017

Mikey108
  • 475 Answers

SOURCE: not shifting until 4000 rpms then very slow accel.

Check condition of the tranny fluid it should be pink. Bring the jeep to a muffler place and have them check the cat convertor for blockage.

Posted on Jun 18, 2009

  • 6982 Answers

SOURCE: power loss at 4000 rpm

anything over 4K is pretty much above the useful torque curve of the engine. Therefore more rpm's will not do you as much good as you might think. If you intend to do any hill-climbing, you will need to begin by changing both front and rear gearsets (if you have say, 3:23's, go to 4:11's etc) You will also need to do some engine mods such as a different camshaft, headers etc. (this will alter torque curve)
Factory gears are generally installed to accommodate a certain region where the vehicle was originally sold. If the region is flat, then the gears will not work well in high terrain.
If you are not hill climbing and just have occasional problems with hills, There isn't really much you can do about it especially if you have a four cylinder in there. One thing though is that if you have oversized tires, get rid of them...they change your final drive ratio and definitely will influence your performance.

Posted on Sep 05, 2009

  • 6982 Answers

SOURCE: 96 jeep cherokee 4.0 automatic has very high revs

The condition you reported is either a control problem or "flaring" both are pressure related. I suggest you have a reliable trans shop test drive it. If it's a control problem (late shifting) there are external adjustments that can be made. If it is flaring, that is internal and may require a rebuild.

Posted on Nov 13, 2009

Testimonial: "Thanks for the help. We still do not know exact problem but are going to try some tranx to hopfully break down any varnish or junk then replace fluid"

SOURCE: in order to get the

So your telling us, your trying to ruin what is left of your transmission

Having once owned a trans repair shop--my advice stop driving it,
get out your check book,go to a trans repair shop and hope for
something other than a complete rebuilt.

Posted on Nov 30, 2010

  • 7 Answers

SOURCE: I have a 1998 Jeep

it is most likley the throttle position sensor"mine wouldn't shift into 5th gear because of it" if it bad or worn out it not sending the correct signal to the computer telling the transmission to shift out. before you get lied to by the auto parts stores diagnostics.turn the ignition on with out cranking the vehicle turn it on off on off and on if the check engine light starts flashing count the flashes .say it flashes two times then pauses then flashes three more times then stops that would be fault code 23 you can look it up on the internet or buy a haynes repair manual in your case if it flashes 2 times then pauses then flashes 4 more times it is the throttle position sensor

Posted on Jul 15, 2011

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