Question about 2000 Chevrolet Venture

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Service engine light

When buy this minivan venture 2000 the light above appears i did the diagnostic and the computer said was the torque converter ,then i replaced so the light appears again somebody told me is the pcm the main problem but i thing is the tranmission because when the light is on the 2nd shift has problems i need some more opinions.

thanks

Albeve

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Ok here is how you fix it,
Take it to the chevrolet dealer and stop relying on people who do not have to pay for their "guess" The dealer is trained on that vehicle and will diagnose it correctly one (1) time and fix it without you wasting time and money on parts changing. Sorry but the computer system on that vehicle is so complex and just because someone else had the same problem yours is not the same exactly just because a code says torque converter there are many other reasons that that code could set.
I realize this is suppose to be a place for professionals to answer questions but the fact is due to the complexity of the systems without actually having the vehicle in your hands, it's nearly impossible to diagnose it, it can be a corroded wire, a loose ground, so many things.
Please rate me a fixya if you feel this information is helpful , Thank you, Randy

Posted on Sep 12, 2008

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My 1995 F350 Powerstroke "Shutters"


VIBRATION - DRIVELINE RESONANCE/VIBRATIONBETWEEN 1400 AND 2000 RPM WITH CONVERTER
Clutch ENGAGED DURING MEDIUM TO HEAVY
THROTTLE CONDITIONS - VEHICLES WITH 7.3L DI
TURBO ENGINE AND TRANSMISSION BUILT PRIOR
TO 11/13/95 (5L13)
^ TRANSMISSION - E40D - DRIVELINERESONANCE/VIBRATION BETWEEN 1400 AND 2000
RPM WITH CONVERTER
Clutch ENGAGED
DURING MEDIUM TO HEAVY THROTTLE
CONDITIONS - VEHICLES WITH 7.3L DI TURBO
ENGINE AND TRANSMISSION BUILT PRIOR TO
11/13/95 (5L13)

FORD:
1995-1996 E-350, F-250 CREW CAB, F-350 CREW CAB
Article 96-26-21 is being republished in its entirety as part of a consolidated 7.3L diagnostic aid booklet.
ISSUE
Some vehicles with transmissions built prior to 11/13/95 (5L13) may exhibit a driveline resonance/vibration between 1400 and 2000 RPM with the torque convertor engaged. This may be caused by the torque converter.
ACTION
Prior to torque converter replacement, refer to the following Service Procedure for details to verify conditions.
SERVICE PROCEDURE
1. Verify the resonance/vibration does not occur in neutral and is most noticeable between 1400 and 2000 RPM with the converter clutch engaged during medium to heavy throttle conditions. Also watch for the vibration to diminish at engine speeds lower than 1400 and higher than 2000 RPM. If the concern meets all of these conditions and the transmission has a built date prior to 11/13/95 (5L13), replace the torque converter. Refer to the appropriate Service Manual for removal and installation procedures.
2. If the vibration concerns do not meet the conditions, check for non-factory installed items that could affect driveline and verify proper installation. Also refer to the appropriate Service Manual, Section 05-00 for diagnosis and testing.
107118085

Aug 22, 2011 | 1995 Ford F250

1 Answer

Car has problem starting because the check engine light is on and when placed on the diagnostic machine the follow code appears PO773


I copied this from the www.automotiveforums.com on the P0773 problem, but I do not think that the solenoid problem it calls out could cause the car not to start. Have you taken it to a auto parts store and had them read the codes for you. It is usually free and they will explain them also.

Background (from the FAQ thread):
Solenoid E (SL) is the torque converter lock-up solenoid. If the torque converter is a little slow locking up, it will set a P0700 code.

The ECM compares engagement condition of TCC with lock-up schedule in memory to detect MECHANICAL trouble of lock-up solenoid, valve body and torque converter. (The P0773 trouble code is probably from monitoring electical signal to the solenoid. Might be worth checking the electical connection and wiring before you replace the solenoid) A P0700 trouble code is set when TCC lock-up does not occur during appropriate speed, or lock-up does not release at appropriate speed.

There are simple electrical tests to check the solenoid and plunger but the transmission pan must be removed to gain access.
A Toyota service tech can check the system without pan removal with his analyzer.

Keep an eye on the rpms when you are above 50 mph. They should be constant at constant speed, like in a manual transmission since the torque converter is supposed to be locked up above this speed. If the torque converter is not locked, then your mileage will suffer, and your tranny fluid will heat up above normal temperature. If you use synthetic fluid, you will minimize the problems from overheating the fluid. The life of the fluid will be shortened in any case if the torque converter doesn't lock up and you drive at expressway speeds, particularly in hilly country.

Jun 02, 2011 | 1997 Lexus ES 300

1 Answer

My 2007 dodge with 5.9 diesel is showing engine malfunction light and error code of P1740, failed TCC or overdrive solenoid. The truck seems to run ok in overdrive but I don't understand what the TCC...


Code P1740-Torque converter clutch did not lock up when the PCM sent the command. Enabling conditions: No engine or transmissions codes are present, vehicle speed was under 70 MPH, TPS was under 33% open. When the PCM commanded the torque converter to lock, no change was detected in engine speed. Blocking action: This code can block the following monitors: none.

Testing: Check torque converter solenoid for proper operation.

NUMBER: 21-11-00
GROUP: Transmissions
EFFECTIVE DATE: October 02, 2000
SUBJECT: 46RE Transmission MIL Due To DTC P1740 - TCC or OD Solenoid Performance
OVERVIEW: This bulletin involves the replacement of the transmission pressure boost valve cover plate.
MODELS: 2000 - 2001 (AB) Ram Van 2000 - 2001 (AN) Dakota 2000 - 2001 (BR/BE) Ram Truck 2000 - 2001 (DN) Durango

NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 46RE TRANSMISSION BUILT BEFORE AUGUST 01, 2000 (MDH O8O1XX).

SYMPTOM/CONDITION:
The customer may complain of a Malfunction Indicator Lamp (MIL) illumination. Upon further analysis, it is determined that the MIL is caused by Diagnostic Trouble Code (DTC) P1740 - Torque Converter Clutch (TCC) or overdrive solenoid Performance. Other than the MIL, the customer may not notice any other condition with the transmission.

This condition may be caused by an intermittent and momentary TCC disengagement condition. The transmission valve body pressure boost valve cover plate has been revised with a larger size orifice hole to address this condition.

NOTE: THE DRB III(R) MUST BE OPERATING AT RELEASE LEVEL 50.4 MDS2 SYSTEM CIS CD2067 OR HIGHER (AVAILABLE THE WEEK OF OCTOBER 2, 2000) IN ORDER TO PERFORM THE REVISED TORQUE CONVERTER CLUTCH STALL TEST. DO NOT USE EARLIER VERSION STALL TEST TO DETERMINE CONDITION OF THE TORQUE CONVERTER CLUTCH.

Here can find the test in pdf format: 2009-11-28_034958_1124.pdf

Hope helps.

Apr 28, 2011 | Dodge Ram 3500 Cars & Trucks

1 Answer

My service engine light is on, took it was put on the machine and came back with the code po741 which was said to be a transmission problem. Took it to a transmission shop and was told that my...


Subject:
Service Engine Soon (SES) Light On, Diagnostic Trouble Code (DTC) P0741, Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect/Replace Internal Transaxle Components) #04-07-30-034 - (08/06/2004)
Models:
1998-2002 Cadillac Eldorado
1998-2004 Cadillac Seville
1999-2004 Cadillac DeVille
2000-2003 Oldsmobile Aurora
there is a write up on this about 3/4 page down.

http://www.cadillacforums.com/forums/cadillac-forum/t-107360.html

Oct 25, 2010 | 2003 Cadillac Deville

1 Answer

Service engine soon light had car scanned came up tcc transmission control circuit switches gears fine


this could be a bad torque converter solenoid, or a bad torque converter and/or the wiring going to and in the transmission. further diagnostics should be done with a scanner

Aug 27, 2010 | 2003 Cadillac Sts

2 Answers

How hard is it to replace a torque converter switch? every so often the service engine light comes on. when it does, the rpm's jump when shifting. I NEED HELP.


Is this an automatic or manual (5 speed)? The part you are referring to is called a crank shaft sensor. The torque converter doesn not have a switch. It is internal in the tranny between the engine and the front part of the tranny.

I suggest replacing the crank shaft sensor and the cam shaft sensor. I am not sure where these are located on this vehicle - however, I have found them in most cases just behind the harmonic balancer. Be aware however that some engines were designed with internal sensors and may require the work of a mechanic to repair this.

I first suggest taking the car to a mechanic (or auto parts dealer) and have a diagnostics test performed as this will determine more accurately what the problem is, or could be.

Please let me know if you need further assistance.

carsandcomps,

Guru, Premium Expert @ Fixya.com

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Coolant leaking from 2000 Chevy Venture minivan. Doesn't appear to be coming from water pump. How do I diagnose the problem.


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2000 Impala LS, 3800 engine has been 'missing' (intermittently losing acceleration in quick succession) when temp is at or over half way to 'hot' on temp gauge. That's usually after about 30 minutes on...


you sure its missing and not a torque converter shudder . as a auto tech some times its hard for me to tell the difference. it it was missing it would throw a miss fire code not a torque converter code at 126 k sounds the the trans needs to come out and a good tech needs to rebuild it

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