Question about 1996 Pontiac Grand Prix

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My check engine light came on and when it was diagnosed it was the transmission pressure solenoid. I cannot find a breakdown guide to put it in and i'm having trouble finding the part as well.

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Go to the web page of autozone and register your car with them.they will help through the repair guide on line.

Posted on Oct 13, 2008

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It was NOT the transmission pressure control solenoid. It was the powertrain control module. it was covered under the federal emissions control act. What was gonna cost me about 700 ended up costing me nothing because the federal government covers that particular part under a warranty up to 80,000 miles on the 2005 Pontiac Vibe. My advice is to take it to the dealer and make them do a diagnostic test and see if whatever problem is covered by the federal government because even if its out of warranty they may still cover it because of emissions control. Couldn't hurt right? The exact phrase the mechanic used was "PC solenoid internal malfunction in PCM". Hope this helps!

Posted on Jul 23, 2008

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Posted on Jan 02, 2017

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Transmission not shifting


Reynald, Check your transmissions fluid level and top up if needed as a first step. Vehicle should be scanned for diagnostic codes to aide in finding the fault and repair required. Could be the plugged trans. filter, shift solenoids stuck/faulty, pressure switch,etc. Check the attached links,instruction and guides, Good luck
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Jul 08, 2016 | 2011 Dodge Journey

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Reverse wont work on an incline and barely work on level ground?


Misty, if automatic check the transmission fluid level and top up if necessary. Take into a good shop for diagnoses(codes) and estimate on repair if needed. Could be transmission valve body or other internal problem causing pressure loss, maybe solenoid issue.
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May 15, 2016 | 2005 Dodge Neon SXT

1 Answer

I got a OBD car fault code po745.,on my Renault methane senic 2003., 106k ml.,what does it means?


P0745 - Pressure Control Solenoid Malfunction Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Faulty line pressure solenoid valve
- Line pressure solenoid valve harness is open or shorted
- Line pressure solenoid valve circuit poor electrical connection Help with this
Tech notes
When the a transmission solenoid is malfunction, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.
Help with this
When is the code detected?
The P0745 is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission shift shock
P0745 Description
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
TURBO BOOST PRESSURE SOLENOID VALVE DIESEL VAUXHALL MOVANO VIVARO RENAULT...

Apr 11, 2015 | Renault Megane Cars & Trucks

1 Answer

A have 2002 ford explorer overdrive light flashes and a code p0745. When I had the car for the first there was no check light and overdrive light wasn't on, as soon I drove the vehicle for half a mile the...


When the a transmission solenoid is malfunction, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

Read more: http://engine-codes.com/p0745_nissan.html#ixzz2juUvQKpy

Nov 06, 2013 | Cars & Trucks

2 Answers

Codes P1782, P0755, and P0700


P1782 DODGE - 2/4-OD Pressure Switch Circuitxicon.jpghttp://engine-codes.com/p1782_dodge.htmlForum CodePossible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty 2/4-OD Pressure Switch
- 2/4-OD Pressure switch poor electrical connection
- 2/4-OD Pressure switch circuit is open or shorted
Symptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Transmission shift shockP1782 DODGE Description The pressure 2/4-OD Pressure Switch is part of the pressure switch of the transmission. The pressure switch are located in the solenoid assembly. The switch provide input information to the Transmission Control Module (TCM). The switch will inform to the TCM is pressure exist in a specified hydraulic circuit. the TCM uses this information to verified that the solenoids are working or not.
P0755 DODGE - 2/4 Solenoid Circuitxicon.jpghttp://engine-codes.com/p0755_dodge.htmlForum CodePossible causes- Low transmission fluid level
- Dirty transmission fluid
- Faulty 2/4 solenoid valve
- 2/4 solenoid valve harness is open or shorted
- 2/4 solenoid valve circuit poor electrical connection
P0700 DODGE - Transaxle Control System Malfunctionxicon.jpghttp://engine-codes.com/p0700_dodge.htmlForum CodePossible causes- Shorted or open circuit within transmission control module (TCM)
- Failure of transaxle control module Tech notes Since the P0700 is just and informative code, check the TCM for more codes to resolve the problem.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Driveability problems
- Transaxle shifting problems

Jul 26, 2012 | Plymouth Breeze Cars & Trucks

1 Answer

1991 Ford F150 4wd 5.0 engine, tranmission E40D. overdive light brink off and on. put it in gear and the motor want to strall. already replace a solenoid inside the transmission didn't fix the pro


Hi Rodney, Have the vehicle scanned and diagnosed. That way you will know for sure where the problem is. I believe the problem is in the control system. Regards John

Jul 01, 2012 | Ford Expedition Cars & Trucks

2 Answers

I bought a 1998 mitsubishi eclipse and the check engine light came on we hooked up the machine to diagnos it and we got 2 codes po700 and p1784 . we are wondering what the codes mean and how to fix the...


DTC 1784: LOW-REVERSE PRESSURE SWITCH
1.Remove transaxle relay from connector. Turn ignition on. Install scan tool and observe low-reverse pressure switch condition. Apply battery voltage to transaxle relay connector terminal No. 8. If low-reverse pressure switch stays off, go to next step. If low-reverse pressure switch turns on, go to step 4 .

2.Raise vehicle enough to allow drive wheels to spin freely. Test low-reverse clutch hydraulic pressure. See HYDRAULIC PRESSURE TESTS under TESTING. If low-reverse clutch pressure test is not within specification, internal transaxle failure exists. If low-reverse clutch pressure test is within specification, observe scan tool.

3.If low-reverse pressure switch turns on, trouble code is intermittent. Check wire harnesses and connectors for damage or poor connection. If low-reverse pressure switch does not turn on, replace solenoid and pressure switch assembly. Recheck trouble codes. If trouble code resets, replace TCM.

4.Check and repair wiring harness between transaxle relay connector and solenoid and pressure switch assembly connector. If wiring harness is okay, check wire between TCM connector terminal No. 10 and solenoid and pressure switch assembly.

5.If wire between TCM connector terminal No. 10 and solenoid and pressure switch assembly is okay, check TCM and solenoid and pressure switch assembly connectors. Repair connectors as necessary. If connectors are okay, recheck trouble codes. If trouble code resets, replace solenoid and pressure switch assembly. Recheck trouble codes. If trouble code resets, replace TCM.

P0700-The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. When the TCM detects a malfunction with the control, a signal is send to the Engine Control Module (ECM) to trigger the Engine Light or Service Engine Soon light. The ECM stores the P0700 code and it means the TCM detected a malfunction with the transmission controls.

I would try disconnecting he battery and letting it sit for 5 minutes, then hook it back up to see if they return-the 700 code is probably related to the 1784 code, that seems to be your main issue.

Jun 06, 2011 | 1998 Mitsubishi Eclipse

1 Answer

Check engine lights on.when I scan it shows code error p0745


P0745 Pressure Control Solenoid Malfunction, You have some sort of internal Transmission problem. You will need to take your car to a Transmission Shop to have the problem diagnosed and repaired.

Aug 13, 2010 | Nissan Altima Cars & Trucks

1 Answer

Pressure Control Solenoid P2716


have the code checked especially if the car is out of warranty. If it is still under warranty take the car to the dealership . The Pressure Control Solenoid determines the quality and accuracy of the shift points and if you let it go the transmission will not shift properly after a period of time. The pressure control solenoid is used by the PCM to raise the mainline hydraulic pressure during high throttle - this increases the holding force on the clutches and bands and prevents slipping. The pressure control solenoid is controlled by pulses from the PCM and this in turn operates the boost valve insde the valve body.

The problem could be either in the PCM or it could be an electrical problem with the solenoid. As suggested it should be diagnosed by a transmission tech. They can check if the PCM is good by looking at the pulses with an oscilloscope at the connector and they should also be able to test the continuity of the solenoid. If the solenoid is faulty the valve body will need to be removed and the solenoid replaced.
good luck

Apr 04, 2010 | 2006 Pontiac Vibe

2 Answers

The transmission was having trouble shifting so I checked the fluid and it's way low. mark is at add 2 pints. problem is there are no leaks


well most likely the transmission fluid needs to be drained and then put in new fluid to the right amount needed, that shall solve your problem. bonus tip also have the clutch stick adjusted if its a manual vehicle.

Mar 23, 2010 | 2003 Chevrolet Monte Carlo

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