Question about Cars & Trucks
We have a 2000 Jeep Grand Cherokee with 155,000 miles on it. The engine light came on, we checked the problem code which showed P0700. The symptoms we were having are no first gear, no overdrive, no speedometer, MPG dropped to 7 and the engine stalling whenever you slow down or stop. The engine stalling was only occurring once the engine reached temp. The only way to prevent the stalling was to drive with both feet not letting the RPMs drop below 1,100. My husband replaced both the input and output transmission speed sensors and replaced the transmission oil and filter with the appropriate Mopar transmission fluid. While he was under the car he removed the bolts holding the transmission valve body assembly and tried to pull the plate down. The plate appeared to be still held in place by something and would not move very far. He pushed the plate back up and replaced the bolts. Now, the car starts but when you move the shifter the linkage moves but none of the gears will engage. Any suggestions?
He moved a shift sensor and they are very touchy . I am sending a picture ask him if can tell me what he touched please thank you. I am a self employed mechanic and will send you the link to my pagehttps://www.facebook.com/TedsRepairs
Posted on Nov 05, 2012
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Posted on Jan 02, 2017
IT IS THE STRAINER INSIDE THE PAN IN THE TRANSMISSION,WHEN ITS COOL THE FLUID IS TO THICK TO TRAVEL AND GRITTY TO GO THROUGH THE STRAINER SCREEN,BUT WHEN THE TRANNY WARMS THE FLUID ITS THEN ABLE TO FLOW THROUGH THE SCREEN AND SHIFT PROPERLY.
Posted on Feb 06, 2009
Check your rear emergency brakes. A brake shoe pin could have broke and the shoe locks up in 1 direction. but not the other. The other problem you mentioned could happen, but if it is in reverse the trans shifted.
Posted on Jun 13, 2009
Generally, what causes C-4's and C-6's to be slugish going into gear, is the seals on the servo pistons are getting hard. The servo pistons are what apply pressure on the clutch packs, when the seals get hard the oil can blow past the piston and the clutch won't engage. It's worse when the the trany is cold and usualy gets better as the oil gets warm. You could try some transmission conditioner, the cheep stuff works as good as the high dollar stuff. Don't rev the engine to try to get it to go into gear, the clutch is trying to engage and you will burn the clutch up pack. If the clutches were replaced 3k miles ago why didn't they put seals in it at the same time?
Posted on Nov 24, 2009
Making a clanking noise as i drive , like the chain in the transfer case. and there is a 1"x5" hole in the bottom, is it supose to be there/
Posted on Feb 28, 2010
SOURCE: 2001 Chrysler Town & Country
P0700 Internal TCM
P0732 Gear Ratio Error in 2nd
P0733 Gear Ratio Error in 3rd
P1782 2-4 Pressure Switch Sense Circuit
P1784 L-R Pressure Switch Sense Circuit
P1787 OD Hydraulic Pressure Switch Circuit
But I am afraid I can't tell you want all these codes mean for your car. It was probably not related to the change in fluid that was performed. However, it is serious and should not be driven until fixed. Risk of total destruction of the transmission is too great. I would assume the symptoms are so diverse that it may be a bad transmission control module. Which is about $200, and fairly easy to replace:
But there are other possibilities, such as a bad relief valve could be letting main pressure drop too low.
This is the type of thing which does require an expert and can't easily be done remotely.
Posted on Sep 09, 2010
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