Question about 1991 Oldsmobile Cutlass Calais

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Locating the ground wire for shift Solinoid

I have found that the shift solenoid is under the transmission oil pan, but am wondering is that where the ground wire for it is as well?

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  • scott227 May 28, 2009

    Would that wire be on the outside of the transmission or the inside?
    thanks a lot for your help


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  • Oldsmobile Master
  • 6,982 Answers

If the solenoid you are looking at only has one wire, then it is grounded by the case itself (like your starter) If for some reason the case has a poor ground, check that engine has good clean solid ground (you can add extra ground as well).

Posted on May 28, 2009

  • Richard Scordino May 28, 2009

    Your engine is grounded directly to the battery,,,the transmission is metal and is extremely well connected to the engine and is therefore grounded as well. If you have a good ground at the engine, the transmission is well grounded too. I used your starter as an example...you only have hot wires connected to it because it, like the transmission, is solidly connected to the engine, and therefore shares its ground.

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Code p2716 on 2005 corolla and location


P2716 Pressure Control Solenoid 'D' Circuit Malfunction
Possible Causes Setting Conditions
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Dec 16, 2016 | Cars & Trucks

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Transmission only goes forward in 1 or 2 position.


Dear Don a,
I recently had a problem with my GMC doing the same thing, and it had the same transmission as yours.
The solutions for mine were the shift solenoids inside the transmission case.
Because I was driving a GMC van/motor home conversion, the local transmission shop could not fix it, so I had to do it myself.
I pulled the transmission pan, ( I had already purchased a transmission pan gasket and filter kit ) and found the two shift solenoids at the bottom edge of the transmission housing, and held on with 2 screws each.
I had to buy the solenoids at the local GMC dealer, they cost me $ 39 each.
I had the whole job done in 1 hour, and I am slow!
P.S. I found I had to tighten the transmission pan gasket several times because until I had the screws REALLY tight, it continued to seep oil.
God bless your efforts.

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Auto transmission low in 1st gear


There is either a wire problem from the PCM to the transmission or the shift solenoid is bad or the wiring to it under the transmission pan. A scan tool would need to be hooked up and that solenoid turned on and off with the scan tool and see if when its turned on the yellow/black wire will switch to a ground when commanded. If it does more than likely the shift solenoid is bad, else, switch a ground the wiring from the PCM is bad or the PCM its self is bad.

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My 1993 Gmc Sierra 2500 automatic first gear shifts hard also from park to drive others gears are smooth i have overdrive


The gear shift lever indicators tell you what gear you have an automatic transmission in on your vehicle. The shift solenoid tells the transmission when to shift gears and what gear to shift into. Newer model automatic transmissions have electronic shift solenoids that are activated and change gears based on the speed the vehicle is traveling. Troubleshooting either one of these transmission components is relatively easy if you know a little about automobile mechanics. With the right tools, you can determine whether the transmission shift solenoid is having a problem. Gear shift indicator problems can be determined simply by moving the gears into their designated position.
Transmission Shift Solenoid
  • 1 Raise each corner of the vehicle up with the car jack and place jack stands under the frame. Make sure the car is raised high enough so you can work under the car freely.
  • 2 Slide the drain pan under the transmission fluid drain plug. Remove the drain plug with a ratchet and socket, and let all the fluid drain out of the transmission. Remove the transmission pan bolts with a ratchet and socket. Pull the pan away from the bottom of the transmission, revealing the transmission shift solenoid.
  • 3 Wipe off the shift solenoid with a shop towel. Disconnect one of the two plugs that attaches to the shift solenoid. Turn the knob on the volt meter to the ohms setting, so resistance can be measured. Set the volt meter on 200.
  • 4 Take the black lead of the volt meter and touch the negative battery terminal wire. Take the red lead of volt meter and slide the tip into the terminal plug you just disconnected from the shift solenoid. Look at the reading you get on the digital display of your volt meter. Determine if the reading is between 12 and 25. Readings below 12 or above 25 tell you that the shift solenoid is not working. Reattach the plug to the shift solenoid and pull the second plug attached to the solenoid. Perform the same procedures on this plug wire. Replace the transmission shift solenoid after determining it is bad.
Gear Shift Indicator
  • 1 Move the gear shift into the desired gear. Look at the gear labels and the arrow, or other indicator, to see if the gear shift indicator lines up with the selected gear.
  • 2 Move the gear lever to another gear and look to see if the indicator lines up with the selected gear. Misalignment of the arrow will tell you if there is a problem. Moving the gear shift to "neutral" but having the indicator show the transmission is in "drive" tells you the gear shift indicator is not working properly.
  • 3 Try each gear position to determine how much misalignment is in the indicator. Slide under the car and check for a loose gear shift cable. Check all the gear shift cable connections to ensure they are all tight and are not missing. Tighten any loose gear shift cable clamps or bolts. Replace the gear shift cable if you find that this is causing the misalignment with the gear shift indicator.

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Code p0753 for a dodge ram 2500 360 m


Both fault codes refer at Tnasmission problem...

P0743 - Torque Converter Circuit Electrical
This DTC appears when an open or shorted condition is detected in the TCC (Torque Converter Clutch) solenoid control circuit; check this as possible causes:
- fused ignition switch output circuit open
- torque converter clutch solenoid defective
- TCC solenoid circuit w/h intermittent defect
- TCCsolenoid circuit w/h observable defect
- TCC solenoid control circuit open
- TCC solenoid control circuit short to ground
- PCM defective (TCC solenoid control circuit)

You will need remove the cover/pan to inspect the harness that goes to all the solonoids and then to inspect the valvebody and the TCC solonoid itself. If you have a multimeter then you could ohm through the harness and even the solonoid. I have found that most of the time this code was produced because of the solonoid itself. But it could be the circuits to it also. There is abig connector an top of the trans that goes into the trans and the internal harness ispect that connector for any corrosion or damaged pins or wires.


P0753 - Shift Solenoid A Electrical Malfunction
This is a common repair that I have replaced several of the solenoid but it is not a cronic problem. It be the wire going to the solenoid shorted so make sure that is check before the transmission is tilted down and the side cover removed. 90% it is just the solenoid; the solenoid is located in the side pan of the tranmission. It would mean lowering the cradle(what the engine and transmission sit on) and lowering the transmission down about one to two feet. Check this like a possible cause:
- 1-2 shift solenoid control circuit is open or shorted to ground
- 1-2 shift solenoid control circuit is shorted to voltage
- 1-2 shift solenoid has failed
- PCM has failed

You will need to remove the transmission pan and its the solenoid with the red and light green wires going to it. Let us know if you have questions contact us here.

Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer. Thank you for using FixYa.

Jose.






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This is on a 4L60-E--Automatic Transmission

michael_cass_182.jpg
This is on a 4L80-E--Automatic Transmission


michael_cass_183.jpgHope this helps you ??

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How do I locate the transmission shift soleniod. I this a promlem I can fix? Can I get to it without dropping the transmission. Ihave access to an auto shop, or should I take it to a transmission shop?


Its located inside the trans and need to open the drain plug on the transmission oil pan with a socket and drain the oil into a drain pan, then need to remove the bolts that secure the transmission oil pan to the transmission.

Now could you to remove the bolt that holds the transmission dipstick bracket to the bell housing with a socket. You can locate the bolt from the engine compartment. Place a scraper between the transmission pan and the bottom of the transmission and break the seal loose so you can remove the pan.

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Why you askw about this? Has some symthom or fault code there?

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The solenoid in your application looks like this
1edc2e6.jpg and it is located sometimes on the side of the transmission, but my guess is from the looks of it, it might be found inside the transmission, only accessible with the oil pan removed.
The problem might be the solenoid itself, or the wiring going to the solenoid from the computer that controls the transmission, or the computer itself.

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