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post #1 of 23 (permalink) Old 10-06-2008, 10:31 PM Thread Starter
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Sad Engine code P0700

Hi everyone. On my home tonight my engine light came on. Nothing seemed wrong until I had stopped at a light and went to accelerate and my RPM's went up to 4 and it seemed like it didn't want to move for a split second and then everything was fine again. Went the rest of the way home (about 10 miles) with no more issues, but the light is still on. I did the key dance and got P0700. Any ideas what may have caused this? Thanks!
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post #2 of 23 (permalink) Old 10-07-2008, 12:54 AM
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Get ready to replace your valve body. Seems the 02 to 04s had a chronic problem with their VBs.
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post #3 of 23 (permalink) Old 10-07-2008, 02:58 PM Thread Starter
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Please excuse my ignorance, but what is a valve body? Is it expensive to replace? Is it something that can be done at home? My bf has a mechanic friend who owes me money, so I'm hoping I wont have to pay for it LOL.


I drove my car again today and it was fine until my way home. The RPM's went u and stayed up again. I don't think it was changing gears. I stopped at a gas station and checked my Trans fluid and it was full. When I left it was running fine again. Just thought I'd throw that in incase it means something.
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post #4 of 23 (permalink) Old 10-07-2008, 04:31 PM
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there used to be a real simple CEL codes sheet on this site somewhere that can show you what all the codes mean, sounds like the car is going into "limp mode" when you describe the rpm change. An 0700 sounds real familiar to me, i've had 3 CEL in my day one was for the throttle position sensor, one was for a solenoid pack in the transmission they changed and the last was really wierd something with the MAP sensor not reading correctly because I "changed atmospheres" to quickly, i guess 80 up a steep grade didnt allow the engine time to adjust to the atmosphere change and triggered the CEL which only had to be flashed at the dealer and went away. I'd say its on eof those but cant remember which
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post #5 of 23 (permalink) Old 10-07-2008, 10:57 PM
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The P0700 basically means that there is a problem with the transmission. Transmission codes have to be read with a code reader. When my trans was acting up, I went to Autozone and they could read them.

It probably is the valve body. I think its a couple hundred dollars to have done. The valve body is the "brain" of the transmission. It has oodles of passage ways to divert the ATF for shifting, lubrication, etc.
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post #6 of 23 (permalink) Old 10-08-2008, 11:36 AM Thread Starter
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Thanks for your words of wisdom guys. It is appreciated.
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post #7 of 23 (permalink) Old 10-22-2008, 02:56 AM
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2.7 tcm

Quote:
Originally Posted by MegaTrep View Post
The P0700 basically means that there is a problem with the transmission. Transmission codes have to be read with a code reader. When my trans was acting up, I went to Autozone and they could read them.

It probably is the valve body. I think its a couple hundred dollars to have done. The valve body is the "brain" of the transmission. It has oodles of passage ways to divert the ATF for shifting, lubrication, etc.
Transmission Control Module (TCM) problem.
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post #8 of 23 (permalink) Old 10-22-2008, 06:20 PM
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Quote:
Originally Posted by MegaTrep View Post
The P0700 basically means that there is a problem with the transmission. Transmission codes have to be read with a code reader. When my trans was acting up, I went to Autozone and they could read them.

It probably is the valve body. I think its a couple hundred dollars to have done. The valve body is the "brain" of the transmission. It has oodles of passage ways to divert the ATF for shifting, lubrication, etc.
a couple hundred to have done, but do you have maybe any idea how much it is to get the tcm from the dealership, because ill just put it on myself. im lost thats the only thing left i can think of thats wrong with mine.
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post #9 of 23 (permalink) Old 10-22-2008, 09:35 PM
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P0700 means there is a DTC (diag trouble code) in the TCM... in other words, the PCM doesn't know whats wrong, but if you took the car down to a dealer and had them scan the TCM, they could tell you... I've not found any other readers that access the TCM for codes... so its the dealership or someone else that has a DRBIII...

that DTC is not giving you the exact error, just that there is something wrong in the tranny...

the TCM is the Electronic Brain of the tranny

the Valve Body is the Mechanical Brain of the tranny

good luck...
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post #10 of 23 (permalink) Old 10-23-2008, 06:24 AM
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Quote:
Originally Posted by silver02crazytrep View Post
...any idea how much it is to get the tcm from the dealership...
THe TCM is a $35 junk yard item. Any reason not to get one of those? All you need to check is that the LH car you get it from has the same gearing as yours (i.e., either it has 300M Special/2.7L gearing or not). '99 thru '01 (not '98 'cause A/S or non A/S makes a difference on that year, but only that year).
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post #11 of 23 (permalink) Old 10-23-2008, 12:32 PM
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Quote:
Originally Posted by peva View Post
THe TCM is a $35 junk yard item. Any reason not to get one of those? All you need to check is that the LH car you get it from has the same gearing as yours (i.e., either it has 300M Special/2.7L gearing or not). '99 thru '01 (not '98 'cause A/S or non A/S makes a difference on that year, but only that year).
that is a fine idea, but his profile says his car is a 2002... that means the PCM and TCM are one unit... isn't that a bit more problematic? or is the PCM/TCM a straight swap without issue?

just my opinion, but if the TCM has an error, then it stands to reason that it needs to be checked and just not start swaping parts... a tranny is a vital device in the car... vital enough that it should be checked, not ignored... IMO...

from the FSM:
Symptom:
P0700-TRANSMISSION CONTROL SYSTEM/READ TRANSMISSION
DTCS ON THE DRBIII

This is an informational DTC letting you know that a DTC(s) is stored in the Transmission Control Module. Erase this DTC from the PCM after all Transmission DTC(s) have been repaired. Using the DRBIII, read the Transmission Controller DTC and refer to the Transmission Category and perform the appropriate symptom. PCM Diagnostic Information complete.
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post #12 of 23 (permalink) Old 10-23-2008, 02:42 PM
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Quote:
Originally Posted by HiTechRedNeck View Post
P0700 means there is a DTC (diag trouble code) in the TCM... in other words, the PCM doesn't know whats wrong, but if you took the car down to a dealer and had them scan the TCM, they could tell you... I've not found any other readers that access the TCM for codes... so its the dealership or someone else that has a DRBIII...

that DTC is not giving you the exact error, just that there is something wrong in the tranny...

the TCM is the Electronic Brain of the tranny

the Valve Body is the Mechanical Brain of the tranny

good luck...
ok thank you and yes i see what you saying because after i wrote this yesterday, later that night it messed up again. i hooked up the OBDII and again showed me p0700 tcm problems, also showing me p1776 and p0841 witch when i looking in my intrepid manual those two codes didnt show only the p0700 but in the trep manual under that 700 code it did not talk nothing about the TCM.
and yes i know i need to take it to the dealership and have them scan it but the want 150 bucks to do it.
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post #13 of 23 (permalink) Old 10-23-2008, 02:46 PM
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Quote:
Originally Posted by peva View Post
THe TCM is a $35 junk yard item. Any reason not to get one of those? All you need to check is that the LH car you get it from has the same gearing as yours (i.e., either it has 300M Special/2.7L gearing or not). '99 thru '01 (not '98 'cause A/S or non A/S makes a difference on that year, but only that year).
well see if i go to the yard and get one, like you say to do. that wont be to big a problem to find one, because i was there yesterday getting a radiator for my car, and well the trep i got i off of was the same as mine year and all the only diffrence was the car color was gold and mine i silver. and plus iv never messed with my TCM or any big wiring on my car so i still have to locate it and know what i looks like.
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post #14 of 23 (permalink) Old 10-23-2008, 02:59 PM
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Couldnt find my thread so anyone that may have any idea let me know because ill just describe whats wrong on this page. Ok my trans is only 2 years old with only a years worth of use on it because it was broke down for a year and maybe has and the very very most 20000 miles on in (and the dearlership the dodge experts put this trans in). So may 4 weeks ago or so had an new motor put after a year of sitting. Guy who put it in said he had to take my torq converter off to get my old out. So then i get the car back drive it around a little. Next i take it on the high for its first time in a while and get it over 40mph, car war up to its normal temp and ounce its over 50mhp at the begining of each of my days or after it cools down all the way and goes over 50mph it goes in to limp mode. Sometimes 2nd or 3rd gear guess witch ever it feels like. Then after i pull over and put it in park shut it off, then get going again its fine the only thing wrong with it is when the CEL is on and i get on it, it acts like it has a shift kit in and cherps the tires in almost everygear. And yes its even chirped 4th before. But yeah i have no idea and neather does the dealership so car, im getting ready to call them now and talk to another expert they told me would be in today. Well thank you for anyones ideas.
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post #15 of 23 (permalink) Old 10-23-2008, 03:44 PM
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Quote:
Originally Posted by silver02crazytrep View Post
ok thank you and yes i see what you saying because after i wrote this yesterday, later that night it messed up again. i hooked up the OBDII and again showed me p0700 tcm problems, also showing me p1776 and p0841 witch when i looking in my intrepid manual those two codes didnt show only the p0700 but in the trep manual under that 700 code it did not talk nothing about the TCM.
and yes i know i need to take it to the dealership and have them scan it but the want 150 bucks to do it.
from the FSM:

P1776-SOLENOID SWITCH VALVE LATCHED IN LR POSITION

When Monitored: Continuously when doing partial or full EMCC (PEMCC or FEMCC).
Set Condition: If the PCM senses the L/R Pressure Switch closing while performing
PEMCC or FEMCC. This DTC will be set after two unsuccessful attempts to perform
PEMCC or FEMCC.

POSSIBLE CAUSES
RELATED DTC P0841 PRESENT
TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
L/R PRESSURE SWITCH SENSE CIRCUIT OPEN
L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
INTERNAL TRANSMISSION
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS

also says that low fluid level can create this condition...

P0841-LR PRESSURE SWITCH SENSE CIRCUIT

When Monitored: Whenever the engine is running.
Set Condition: The DTC is set if one of the pressure switches are open or closed at the
wrong time in a given gear.

POSSIBLE CAUSES
RELATED RELAY DTC’S PRESENT
LOSS OF PRIME P0944 PRESENT
L/R PRESSURE SWITCH SENSE CIRCUIT OPEN
TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT OPEN
L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO GROUND
L/R PRESSURE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
L/R PRESSURE SWITCH
POWERTRAIN CONTROL MODULE
INTERMITTENT WIRING AND CONNECTORS

the transmission factory manual has diagnotic proceedures for these... PM me and I will email it to you... the file is only 1MB...

Last edited by HiTechRedNeck; 10-23-2008 at 03:46 PM.
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