Question about Chevrolet Cavalier

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Transaxle will not shift out of first gear

When placed in drive position transaxle will not upshift from low gear

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You have to be a little more specific here what kind of vechile do you have , sounds like there might be a little dirt in the electric connection if activated that way or sticking gear

Posted on Mar 28, 2014

Testimonial: "97 chevy cavalierz24"

  • jack of all trades ,
    jack of all trades , Mar 29, 2014

    I believe that they are run on vacuum ck to see if you are getting vacuum to the trans follow the hoses to the trans there should be one for the shift modulator

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Posted on Jan 02, 2017

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2004 Malibu code po826


The TAP Shift system allows the driver to manually shift gears by using the TAP Shift switches located on the Automatic Transmission Shifter. Pushing the Up switch will command an upshift and pushing the Down switch will command a downshift. The TAP Shift system is activated when the gear selector is in the Low (L) position and is deactivated in all other positions.
If the PCM detects an invalid voltage on the TAP up/TAP down switch signal circuit, then DTC P0826 sets. DTC P0826 is a type C DTC.

Nov 01, 2017 | Cars & Trucks

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I have a 2009 GMC Acadia. What should the ERS mode be in on a normal basis?


Driver Shift Control (DSC) or Electronic Range Selection (ERS): This position (M-Manual / L-Low) allows the driver to utilize the DSC/ERS system. When the shift selector lever is moved to this position, the driver may select upshifts or downshifts by using the paddle switches located on the steering wheel/shifter. An upshift is requested by pushing either + button. Refer to the vehicle owner's manual for more specific DSC/ERS information.
Driver Shift Control (DSC)/Electronic Range Selection (ERS)
Refer to the owner's manual for specific instructions on DSC. The TCM will override shift commands when maximum engine speed is achieved and will protect from any downshift which may cause excessive engine RPMs.

Electronic Range Select (ERS) Mode
ERS mode allows you to choose the top-gear limit of the transmission and the vehicle's speed while driving down hill or towing a trailer. The vehicle has an electronic shift position indicator within the instrument panel cluster. When using the ERS Mode a number will display next to the L, indicating the current gear that has been selected.
To use this feature:
Move the shift lever to L (Low).
Press the plus/minus button located on the shift lever, to increase or decrease the gear range available.
When you shift from D (Drive) to L (Low), the transmission will shift to a pre-determined lower gear range. The highest gear available for this pre-determined range is displayed next to the L in the DIC. See Driver Information Center (DIC) and DIC Operation and Displays for more information. The number displayed in the DIC is the highest gear that the transmission will be allowed to operate in. This means that all gears below that number are available. For example, when 4 (Fourth) is shown next to the L, 1 (First) through 4 (Fourth) gears are automatically shifted by the vehicle. the transmission will not shift into 5 (Fifth) until the + (Plus) button is used or you shift back into D (Drive).
While in L (Low), the transmission will prevent shifting to a lower gear range if the engine speed is too high. You have a brief period of time to slow the vehicle. If vehicle speed is not reduced within the time allowed, the lower gear range shift will not be completed. You must further slow the vehicle, then press the - (Minus) button to the desired lower gear range.
Automatic Engine Grade braking is not available when the ERS is active. It is available in D (Drive) for both normal and Tow/Haul mode. While using the ERS, cruise control and the tow/haul mode can be used. See Tow/Haul Mode for more information.
© 2017 General Motors Corporation. All rights reserved

Oct 09, 2017 | 2009 GMC Acadia

1 Answer

How do you replace a neutral safety switch on a saturn sl1 2001


It 's a Transmission Range Switch , it tells the pcm more then just park or neutral positions !

Transmission Range Switch Replacement
Ensure the ignition is OFF.
Remove the air cleaner and duct assembly. Refer to Air Cleaner Housing and Duct Assembly Replacement in HVAC.

Disconnect the transaxle range switch harness connectors.
Place the control lever in the full clockwise position.
Notice: If manual shift shaft is rotated excessively, internal damage to the transaxle range switch may occur.
Prevent the manual shift shaft from rotating by holding the control lever while removing the retaining nut from the manual shift shaft. Remove the control lever.
Remove the 2 switch-to-transaxle case bolts and remove the switch.

Install the cable to the control lever and adjust the cable. Refer to Shift Control Cable Adjustment .
Before tightening the transaxle range switch-to-case bolts, proceed to the Adjustment procedure.
Adjustment Procedure
Important: While adjusting the transaxle range switch, always rotate the switch towards the engine to achieve continuity. A diagnostic trouble code DTC P0706 could result if this procedure is not followed.
Important: Digital volt/ohm meter (DVOM) with audible continuity test is preferred. Do not stick the probe in the transaxle range switch terminal hole; use male terminals on the transaxle range switch or faulty readings could occur.
Place the transaxle in Drive (D). Use an ohmmeter or continuity tester to check for continuity across terminals on the selector switch. Rotate the transaxle range switch from the left fender towards the engine until continuity is achieved.
Notice: Refer to Fastener Notice in the Preface section.
Tighten the switch-to-case bolts. After switch-to-case bolts have been tightened, check continuity.
Tighten
Tighten the transaxle range switch-to-case bolts to 14 N·m (10 lb ft).
Connect the transaxle range switch harness connectors.
Install the air cleaner and duct assembly. Refer to Air Cleaner Housing and Duct Assembly Replacement in HVAC.
Using a scan tool, ensure each gear position reads correctly while manually moving through all gears.

Dec 15, 2016 | 2001 Saturn SL

1 Answer

Transaxle


sounds like a vacuum problem on the trans, ck it out

Mar 28, 2014 | 1997 Chevrolet Cavalier

1 Answer

Should I keep overdrive on or off? also should keep ECT on or off?


Hello. Welcome to FixYa. I am Toyota Ed, and I will be assisting you today.

The Overdrive function allows the transmission to shift an extra time, sort of like selecting 5th gear in a 5 speed manual transmission. The Overdrive, when used, will save you gas, as the engine is no longer maintaining a high RPM at normal driving speed. Look at the tach whilst driving about 45 mph, and engage/disengage the OD. You will see the tach RPM raise when the OD is off.
More RPM = lower fuel mileage,

The ECT is a different circumstance. The ECT button is used primarily when you have a heavy load in the car, or are towing something. All the ECT button does, when it is engaged, is lengthen the shift points as the transmission upshifts. Normally, the transaxle will shift into 2nd gear at 18-21 mph. When the ECT is engaged, the transaxle will shift in the area of 22 -24 mph. In short, the ECT just makes the time to the 1-2 and the 2-3 upshift longer, to compensate for the additional load being carried/towed.

I hope my assistance answers your question.

Thanks for choosing FixYa today!

Feb 04, 2011 | 1996 Toyota Camry

1 Answer

What is code 1811 on 2000 buick centryclunks into gear AFTER 25 TO 30 MILES . TRANMISION PEOPLE SAY THAT THE TRANMISION NEED REPLACEING


Hi,

Condition


Some owners of the above vehicles with a Hydra-Matic 4T65-E transaxle may comment on harsh upshifts or harsh garage shifts, soft shifts, shudders on hard acceleration, or shifts erratic. These conditions may appear intermittently or set a DTC P1811 or P0748. During diagnosis, a low or high line pressure (actual versus desired) may be observed.

Cause

The above condition may be due to any one of the following which may affect line pressure output:
• Sediment inside the pressure control (PC) solenoid valve, causing the PC solenoid valve to mechanically bind. • Sediment in the valve body, causing the torque signal regulator valve to stick. • Incorrect transaxle oil level.
To verifiy the exact failure, a line pressure check will need to be performed.

Hope i helped you.

Thanks.

Sep 06, 2009 | 2000 Buick Century

3 Answers

My 1989 Jeep with AW4 transmission does not downshift or ?


This model has a tranny computor under the dash on the right side screwed to the bottom of the dash. If I remember correctly, there is also an inline fuse attached to the harness. Check the fuse.

Feb 12, 2009 | 1989 Jeep Cherokee

1 Answer

Overdrive button


from the car manual:

Tum the overdrive switch on for good fuel
economy and smooth driving. If engine braking
is needed in the "D" range or if repeated
upshifting and downshifting between the 3rd
and 4th gear is needed when climbing a
gentle slope, it is recommended that the
overdrive switch be tumed off. Tum the
overdrive switch back on immediately afterward.

When the overdrive switch is tumed on, the
transaxle will automatically upshift to the second,
third and overdrive gears. When the overdrive
switch is tumed off, the transaxle will not
upshift to the overdrive gear. For normal driving,
the selector lever should be left in the "D"
position and the overdrive switch tumed on.
If you need to accelerate rapidly, press the
accelerator pedal all the way to the floor. The
transaxle will automatically shift to a lower gear,
depending on the vehicle speed and load.

Jan 19, 2009 | Hyundai Accent Cars & Trucks

2 Answers

96 Ford Contour CD4E Auto Trans.


The item referred to needing adjustment in the previous reply is called the MLP (manual lever position sensor). It tells the computer electronically that the car is in P, R, N, D, 2,1 (depending on the gear selector) It also allows the car to only be started in P and N for safety.
If it is out of adjustment, the sensor is misaligned with it's reference point on the gear selector rod, which goes into the trans case and pushes/pulls a rod that moves the selector piston/valve. The valve will be in the right place but the computer will say other wise and it controls the shifting with the solenoids.
SOURCE INFO:
{MLP transaxle function: determion desired gear and electronic pressure control (EPC) pressure:
Symptoms: Harsh engagements and firm shift feel, engine may not crank, may downshift to a lower gear, 2nd or 3rd gear operation, transaxle not inicating the proper gear, no 4th gear operation. no manual first gear.}
Another point of interest is the EPC (electronic pressure control)solenoid inside the black side cover.
Failed OFF-maximum EPC pressure, harsh engagements and harsh shifts.

Another possible issue may just worn out clutches if the unit has high mileage or maybe verify fluid level and recent change of fluid. The filter is inside unit and trans has to be removed to change, some Hondas are like this too.

Jul 06, 2008 | 1996 Ford Contour

2 Answers

HYUNDIA 1997 ELENTRA 1.8


http://www.2carpros.com/how_to/transmission_service_4.htm
Popular Problems Checks
1. Car will not go into gear:
  • Gear selector cable has failed
  • Brake lock solenoid has failed not allowing the gear selector to move out of "Park"
  • Excessively low transmission fluid (note: if car is operated for an extended amount of time with low fluid level the transmission will fail prematurely)
  • Shorted electrical component not allowing the PCM to control the transmission. Example: shorted fuse
  • Flex plate (flywheel) is broken completely not transferring engine power to the transmission.
2. Car goes into gear but then fades out of gear or is slipping while driving:
  • Transmission fluid is low
  • Transmission clutch discs or bands are worn out or burned
  • Faulty transmission shift solenoid.
3. Car goes into gear but does not shift out of first:
  • Blown fuse to the PCM controller
  • Faulty vehicle speed sensor (VSS)
  • Shorted second gear control solenoid
  • Faulty transmission controller (PCM)
Tips About Common Problems and Fixes

Jun 21, 2008 | 1997 Hyundai Elantra

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