Question about 1994 Ford Explorer Limited

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Transmission Problem Transmission is not shifting correctly. I replaced the 3-4 shift sylenoid and the torque converter lock up sylenoid. On the drivers side of the transmission are two, what appears to be band adjustments. Can you confirm or tell me what they might be? And can you tell me the adjustment specs sense I moved them both and made it run worse. Seems like these adjustments affect the engine running smoothness also. HELP. Thanks, Dave

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Band adjustment goes like this, Break the jamb nut loose and back it off a couple of turns then torque the center stud to 10 ft pounds then back it off 2 turns and tighten the jamb nut.
Jim

Posted on Oct 04, 2008

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Posted on Jan 02, 2017

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1 Answer

Transmission solenoid


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the torque converter clutch solenoid / servo will not give any drive action if faulty
the transmission if operating fine in all gears with no noises will not need replacing
save money by going to an accredited transmission specialist shop and have the fault codes read first then replace the problem sensor , servo or solenoid

Jul 11, 2017 | BMW Cars & Trucks

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2000 le sabre gears shifting hard or slipping


that is your ttc solenoid . it is your torque converter lock up solenoid. it is located in the transmission ,and to get the it you have re move the side pan on the transmission on the drivers side12_12_2012_12_05_46_am.gif

Dec 11, 2012 | 2000 Buick LeSabre

1 Answer

Codes po740, po743 ? po753 all at once. Where should i begin for repairs?


You must do the diagnostics for each code.
Here are the possibilitesP0740 DODGE - Torque Converter Clutch Circuitxicon.jpghttp://engine-codes.com/p0740_dodge.htmlForum CodePossible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
P0743 DODGE - Torque Converter Clutch Solenoid Circuitxicon.jpghttp://engine-codes.com/p0743_dodge.htmlForum CodePossible causes- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid

P0753 DODGEP0753 DODGE - 3-4 Shift Solenoid Relayxicon.jpghttp://engine-codes.com/p0753_dodge.htmlForum CodePossible causes- Faulty shift solenoid valve
- Shift solenoid valve harness or connectors
- Shift solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid

Jul 03, 2012 | 1997 Dodge Ram 1500 Club Cab

1 Answer

1999 dodge ram take of WOT fine threw all gears and can feel the lock up ingage fine. at 55 mph crusing and heavy accel it goes like its in neutral.


The situation you describe could be (i) low fluid in the torque converter, (ii) a faulty signal to or from the torque clutch solenoids, (iii) a crack in the torque lock up solenoid pipe leading to fluid pressure loss, or (iv) the torque clutch solenoid modulator is faulty. 1) Is there plenty of fluid on dip stick? 2) have the (transmission diagnostic) codes read at Autozone 3) Check that the transmission electrical connector plug socket pins are clean and free of corrosion 4) Check solenoids - Drain fluid, remove transmission pan and remove filter. Now looking at the back edge of the valve control assembly from left to right (as viewed in direction of travel) is the force motor/pressure control solenoid, two identical square shaped solenoids corresponding to '2 to 3 shift' and '1 to 2 shift' and, last on the right, the forward clutch accumulator. On the front edge of the valve assembly, again from left to right, we have torque converter clutch solenoid (A) and immediately above it, pointing straight up, the torque converter lock up solenoid (B) and finally on the left the 'down shift 3 to 2' solenoid. Unplug the torque converter clutch solenoid (A) and using a small screw driver remove the solenoid's retaining clip from the close by slot. Remove the solenoid. Also disconnect and then remove the two securing bolts holding the torque converter lock up solenoid (B) assembly and drop that out. Thoroughly clean both solenoids. Check up the end of the pipe of (B) with the aid of torch and look for any signs of cracks. Check both solenoids across the connector pins for electrical resistance: (B) should have 20 to 25 ohms and (A) should be 10 to 15 ohms. If there is either no or infinite resistance then this indicates either a short or open circuit respectively and the solenoid should be replaced. Note that (B) is an 'on/off' type solenoid and can be opened and closed by applying a 12volt source across the pins; (A) is a 'pulse width modulated' solenoid and so cannot be easily tested for full operation in isolation.

Jul 06, 2011 | 1999 Dodge Ram

1 Answer

My bravada (2000) has a transmission problem. I took it to an expert and he said it doesnt have a second gear and it will cost 1200 to 1800 to fix. Is there any other way? Is there any recalls on this year...


CHECK TRANSMISSION FLUID LEVEL.IF TRANSMISSION FLUID AND FILTER BEEN CHANGED.MAKE SURE ENGINE FINE TUNED AND TRANSMISSION DOWN SHIFT CABLE HAS BEEN ADJUSTED.OTHER POSSIBLE CAUSES TRANSMISSION NOT SHIFT TO SECOND GEAR. YOU HAVE FAULTY STUCK 1 - 2 SHIFT SOLENOID. OR TORQUE CONVERTER SLIPPING NOT LOCKING UP DUE TO DAMAGED TORQUE CONVERTER CLUTCH VALVE OR TORQUE CONVERTER FAULTY.

May 19, 2011 | 2000 Oldsmobile Bravada

1 Answer

1998 jeep grand cherokee 4x4. have the p0740 code. have to start from neutral, then shifts faily well. May start fluttering and making noise, have to put back to N, then to D and once again will shift. ...


P0740 JEEP - Torque Converter Clutch Circuit
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission shift shock
- Vehicle may not shift into the highest gear

Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted

When is the code detected?
Torque Converter Clutch (TCC) unlocked for 10 sec., ECM commands converter lock-up and did not record engine speed drop.

P0740 JEEP Description
The torque converter clutch solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM). Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter.

Lock-up operation, however, is prohibited when A/T fluid temperature is too low.

When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.

Mar 27, 2011 | 1998 Jeep Cherokee 4WD

1 Answer

Shifting very slow


Hi and welcome to FixYa!

If the shifting is slow then the problem will surely be on the transmission fluid. If the transmission fluid is burnt the transmission tends to shift slower than expected. If the fluid is new and problem still persists, you may have a faulty torque converter. The torque converter controls the shifting of the car. Once the torque converter is replaced, a smooth drive and shifting will be noticeable.

Hope this helps and thank you for using FixYa! Have a good one!

Jan 26, 2011 | Chevrolet Cavalier Cars & Trucks

1 Answer

I have a 1500, 5.7, 2 wheel drive with a 4 speed transmission with O/D . How many times should it shift including the O/D and what does the lock in torque converter have to do with it?


It should shift 4 times. 1-2, 2-3, 3-4 Then you will feel the torque converter clutch lock up which feels like a shift. The torque converter locks to increase gas mileage.

Dec 28, 2010 | 1993 GMC Sierra

3 Answers

The car will not shift into overdrive? All other gears work perfect? The problem just started tonight on my way home from my sisters. I got on the expressway accelerated up to 70mph and it just stayed in...


There should be an electric solenoid on the side of the transmission that controls overdrive, if it is not the cause then the friction plates inside the transmission will need to be replaced.

Apr 05, 2010 | 2000 Pontiac Grand Prix

1 Answer

PROBLEMS WHITH THE TRANSMISSION CONTROL SOLENIOD


===shift interlock solenoid--Inside the steering column near the ignition switch

===1-2 shift solenoid valve--Inside the automatic transaxle
to remove it :
  1. Remove the case side cover. Refer to Case Side Cover Replacement.
  2. Disconnect the transaxle wiring harness.
  3. Remove the 1-2 shift solenoid (315A).
2-3 shift solenoid valve--Inside the automatic transaxle
to remove it;
  1. Remove the case side cover. Refer to Case Side Cover Replacement.
  2. Disconnect the transaxle wiring harness.
  3. Remove the 2-3 shift solenoid (315B).
==the torque converter solenoid--inside tranny too

good luck,let me know

Jun 04, 2009 | 2000 Pontiac Montana

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