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1995 pontiac trans am formula 400 / 5.7 LT V8 engine / RPO MM6 six speed Transmission PROBLEM: Transmission won't shift into 5th or 6th gears. Also Service engine light on .I replaced the (VSS)veh

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Broken Linkage on a Manual Transmission?

what kind of vehicle is it?

Posted on Dec 15, 2008

  • 916 Answers

SOURCE: Hello, I own a 93

The transmission is controlled by the Transmission Control Unit (TCU).

Throttle position, rpm, and speed are input parameters to the TCU. The TCU has a default set of shift patterns. These shift patterns change over time based on your specific vehicle setup and driving habbits.

The shift patterns are only slightly affected by driving habbits over many driving cycles. But, changing the relationship between the throttle position and the actual speed being reported by the speed sensor can have an immediate effect on shift patterns.

While your speedo may now be correct, the realtionship between rpm and thottle position has not been corrected. That would take a gear change in the differentials.

The TCU can be reset to an inital learn base line. When this is done, the TCU will instantly learn the dynamics of your setup.

Any shop with an advanced ODB scan tool can reset the the TCU. The dealer or a transmission shop would be preferable.

You really should change your differential gears as opposed to resetting the TCU

This information was posted by ftgiles here

Posted on Jan 06, 2009

localwonder
  • 6784 Answers

SOURCE: speedometer doesn't work and transmission wont shift

Hi, make sure you check the speed cable that runs to the engine, it may be severed. As for the tranny, you have some major gear problems that will require pulling this transmission for a deeper look. i would have a look at the transmission filter as well.

Posted on Mar 11, 2009

  • 20 Answers

SOURCE: 2002 Kia Sedona XL suddenly downshifts

Start here:
www.kiatechinfo.com

Free registration, wealth of information.

For the record: if the sensors they're referring to are the input or output shaft speed sensors, they are very easy to find...just remove the air intake box (where the air filter is) and they're right there on top of the transmission. Input sensor is the one closer to the front of the vehicle, output towards the rear.

Posted on Aug 08, 2009

  • 4 Answers

SOURCE: 1997 transmission Slow Acceleration

not sure if this is the answer yet but i have the same problem with the same codes i work at an auto parts store and a few of the techs that are customers have lead me in the direction of changing the ignition switch, i am doing it today will let you know if it solves the problem

Posted on Jan 27, 2010

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Pontiac firebird problems


Rebuild the trans

What have you been waiting on !
Why use a vehicle that won't shift properly?

Feb 22, 2014 | Cars & Trucks

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General Motors gear ratios hide] 1 GM Rear Wheel Drive...


General Motors gear ratios
hide]

GM Rear Wheel Drive Transmissions

PTU = Power Transfer Unit (Crossover SUV AWD/4WD)

6 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
MNK Allison 1000
MNZ Allison 1000
MW7 Allison 1000
MYB
MYC

5 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M74 Allison 1000
M22 5L50-E
M82 5L40-E
MTW Allison 2400
MX4 Allison 2000
MX5 5L40-E with PTU*
MV3 5L50-E with PTU*

4 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M30 4L60-E
M32 4L60-E HD
M32 4L65-E
M33 4L60-E Hybrid
M41 4L30-E
M70 4L70-E Super Duty
M99 2ML70 2-mode Hybrid*
MD8
ML4 4L30-E
MN8 4L80-E HD
MN8 4L85-E
MT1 4L80-E
MW9 HM 200-4R
  • EVT Mode 1 The 2ML70 can operate in electric mode or non-electric mode in first gear with a gear ratio of infinity to 1.70:1.
  • EVT Mode 2 The 2ML70 operates in non-electric mode with a gear ratio of 1.70 - 0.738:1

3 Speed Automatic Transmissions

RPO Trans Name 1st 2nd 3rd
M40
M41
M65
MD2
MD3 HM-180
HM-200C
HM-350
HM-400

GM Front Wheel Drive Transaxles

6 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
MH2
MH4
MH6 6T75 (AWD)
MH7
MH8
MY9 6T75 (AWD)

5 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
Aisin-AW 55-51LE
M09 Aisin-AW AF33-5
M43 Aisin-AW AF23-5
M45 Aisin-AW AF33-5
M98 AF33-5
MJ7 Honda 5AT
MJ8 Honda 5AT w/PTU*
MLS Aisin 50-40E
MU3 Saab 76.5mm

4 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
MLQ Aisin 81-40LE
Aisin ZF 4HP 16
HM 325-4L
Jatco JF405-E
M10 Jatco JF403-E
M13 4T60-E HD
M13 4T60-E
M15 4T65E
M45 Aisin-AW AF33
M57 A245-E
M76 4T65E with PTU*
MD7 4T65E
ME7 4T45-E BAS Hybrid
ME8
ME9
MH1 4T80-E
MN3 4T65E
MN4 4T40/45-E
MN5 4T45-E
MN7 4T65E HD
MS7 A240-E
MU4 A246-E
MU5 U341-F

3 Speed Automatic Transaxles

RPO Trans Name 1st 2nd 3rd
M60 GEO Metro
MB3 A131L
MD9
MX1 A131L
GEO Storm
HM-425

GM Manual Transmissions

6 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M10 Tremec 85mm
M12 Tremec T56
ML6 ZF S6-650
ML9 ZF S6-40
MM6 Tremec T56
MV1 Aisin 85mm
MV5 Aisin D173 AY6
MV6 Aisin 85mm
MZ6 Tremec 85mm

5 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M35 Getrag 260
M35 Getrag 260 (2003-2004 Cadillac CTS)
M49 BW 5spd
M50
M59 GEO Tracker
M86 Getrag F23 75mm
M94 Getrag F23
M96 Tremec 109mm
MA5 Aisin AR5 82mm
MG3 Getrag F23
MG5
M50
M51
MH3 Tremec T-5
MK5 C59
ML2 Tremec T-5
ML3 Tremec T-5
MT8
MU3 Saab F25
MW2
MW3 NV4500 109mm
TR-3450
TR-4050
TR-4050
2007 Chevrolet Optra and Spark (Trans code Y4A)
2007 Chevrolet Optra and Spark (Trans code Y4M)

4 Speed Manual Transmissions

RPO Trans Name 1st 2nd 3rd
M20 HM-117
M73 Isuzu
MC0 Getrag
MC9
MY6 NP260

More GM Manual Transmissions

6 Speed Manual Transaxles

RPO Trans Name 1st 2nd 3rd
MT2 Opel F40 83mm
MU9 Opel F40 83mm
MTN Toyota C60

5 Speed Manual Transaxles

RPO Trans Name 1st 2nd 3rd
D-16 (2005-2008 Chevrolet Aveo 1.4 DOHC / 1.5L)
D-16 (2005-2008 Chevrolet Aveo 1.4 SOHC)
Y4A (2007 Pontiac Matiz)
YM4 (2005-2007 Chevrolet Aveo)
D-20 (2005-2007 Chevrolet Epica)
L73 Pontiac LeMans F16
M42 Geo Metro
M43 AF23
M49 BW 5spd
M58 Geo Metro
M79 LeMans F13
M86 Getrag F23 (5T45MI)
M94 Getrag F23
M98 Aisin 55-51E
MB4 Geo Prizm 1.8L
MB5 Geo Prizm
MFB 2008 Chevrolet Epica 5-Speed S/R (D24)
MFN 2008 Chevrolet Epica 5-Speed S/R (D33)
MG1 HM-282
MG2 HM-282
MG3 Getrag F23
MJ1 Isuzu
MK7 Isuzu
MLM Y4M (2008 Chevrolet Aveo 1.6 DOHC)
MR3 Isuzu
MU3 Saab F25
MV2 Chevrolet Sprint
MY7 Early J-car

GM Continuously Variable Transaxles

RPO Trans Name Lowest Highest
M83 V20-E
M75 V25-E
M16 V25-E AWD

on Apr 15, 2015 | GMC Cars & Trucks

1 Answer

My 1995 Chevy Tahoe won't shift gears as I'm


Probably the speed sensor on the transmission. It would cause both problems. You should also have a check engine light with a trouble code for the sensor.

Jul 17, 2013 | Cars & Trucks

1 Answer

Won't shift into 5th gear or over drive.


Change the trans solenoid pack inside the transmission pan

One part--- contains 3 pressure solenoids & all 4 shift solenoids

Feb 17, 2013 | 2000 Lincoln LS

1 Answer

Does Shift solenoid A&B control shifting into 5th gear on an automatic transmission?


First check the transmission MIL code , that will tell you if it is the Over Drive lock solenoid mal functioning , Do a tranny oil change with filter ,then replace fifth gear pressure solenoid , when you are there already .

Jan 23, 2013 | 2000 Cadillac Seville

1 Answer

My 03 mustang won't down shift after shifting the


HI,
Search online..but it sounds like the 'synchros' in the transmission are going/gone.
Also, the clutch may be wearing out.

Td

Oct 01, 2012 | Cars & Trucks

1 Answer

I have a 2003 chevy S-10 4x4 crew cab we are wanting to tow behind a motor home. I was wondering how you can put the transfer case into neutral, so we dont have to car dolly it everywhere?


Some customers may want to tow their vehicle behind another vehicle with all FOUR tires on the ground. This is referred to as "dinghy" towing.
Towing in this manner is acceptable only on the certain vehicles. The vehicle should be properly equipped and prepared as described below.
The passenger cars listed above are the vehicles that CAN be dinghy towed. Passenger cars not listed above are vehicles where dinghy towing is not permitted or recommended.
Certain 4WD trucks can be dinghy towed depending on the transfer case option. Rear wheel drive and AWD trucks should NOT be dinghy towed. Refer to the truck models and transfer case options below.
Please refer to the applicable vehicle Owner's Manual before towing.
Passenger Cars Notice: These vehicles must not be towed backwards or transmission damage may occur.

• 1995-2005 Chevrolet Cavalier, Pontiac Sunfire and 1996-2000 Toyota Cavalier equipped with Hydra-Matic® 4T40-E Automatic Transmission (AT) (RPO MN4) or 5-Speed Manual Transmission (MT) (RPOs MK7, MJ1, M86, M94) • 1995-2005 Pontiac Grand Am equipped with Hydra-Matic® 4T40-E or 4T45-E AT (RPOs MN4, MN5) or 5-Speed MT (RPO MJ1, M86, M94) • 1995-1998 Oldsmobile Achieva equipped with a 5-Speed MT (RPO MJ1) • 1997-2003 Chevrolet Malibu, 2004-2005 Chevrolet Classic and 1997-1999 Oldsmobile Cutlass equipped with Hydra-Matic® 4T40-E AT (RPO MN4) • 1999-2004 Oldsmobile Alero equipped with Hydra-Matic® 4T40-E or 4T45-E AT (RPOs MN4, MN5) or 5-Speed MT (RPOs MJ1, M86, M94) • 1994-1997 Geo Tracker / 1998-2004 Chevrolet Tracker 4WD models equipped with 3L30 or 03-72LE AT (RPOs M41, M65, MX1) or 5-Speed MT (RPO M59) • 2006-2007 Chevrolet HHR • 2005-2007 Chevrolet Cobalt, Pontiac Pursuit • 2005-2007 Pontiac G6 (excluding 3.9L V6 AT) • 2007 Pontiac G5 • 1995-2005 Chevrolet Cavalier, Pontiac Sunfire and 1996-2000 Toyota Cavalier equipped with Hydra-Matic® 4T40-E Automatic Transmission (AT) (RPO MN4) or 5-Speed Manual Transmission (MT) (RPOs MK7, MJ1, M86, M94) • 1995-2005 Pontiac Grand Am equipped with Hydra-Matic® 4T40-E or 4T45-E AT (RPOs MN4, MN5) or 5-Speed MT (RPO MJ1, M86, M94) • 1995-1998 Oldsmobile Achieva equipped with a 5-Speed MT (RPO MJ1) • 1997-2003 Chevrolet Malibu, 2004-2005 Chevrolet Classic and 1997-1999 Oldsmobile Cutlass equipped with Hydra-Matic® 4T40-E AT (RPO MN4) • 1999-2004 Oldsmobile Alero equipped with Hydra-Matic® 4T40-E or 4T45-E AT (RPOs MN4, MN5) or 5-Speed MT (RPOs MJ1, M86, M94) • 1994-1997 Geo Tracker / 1998-2004 Chevrolet Tracker 4WD models equipped with 3L30 or 03-72LE AT (RPOs M41, M65, MX1) or 5-Speed MT (RPO M59) • 2006-2007 Chevrolet HHR • 2005-2007 Chevrolet Cobalt, Pontiac Pursuit • 2005-2007 Pontiac G6 (excluding 3.9L V6 AT) Towing Procedure Notice: Failure to follow these instructions may result in damage to the transmission.
Important: The towing speed as stated in the Owner's Manual should not exceed 104 km/h (65 mph) for 1995-2005 vehicles.
In order to properly dinghy tow the vehicle, follow these steps:
  1. Firmly set the parking brake.
  2. Open the fuse panel and pull the fuse(s) indicated in the Owner's Manual section detailing towing your vehicle. This prevents the instrument panel (IP) and/or electronic PRNDL indicator from draining the battery.
  3. Securely attach the vehicle to the tow vehicle.
  4. Turn the ignition key to the OFF position, which is one position forward of LOCK. Unlocking the steering column allows for proper movement of the front wheels and tires during towing.
  5. For 1997-1999 Cutlass, 1997-2003 Malibu, 2004-2006 Chevrolet Classic and 1999-2004 Alero/Grand Am models, turn the ignition switch to the accessory (ACC) position, which is one position forward of OFF. This position unlocks the transaxle.
  6. Shift the transmission to Neutral (N).
  7. Notice: Use extra care whenever towing another vehicle. Do not exceed the towing vehicle's gross combination weight (GCW) by adding the weight of the dinghy towed vehicle or vehicle damage may result.
  8. When the vehicle being towed is firmly attached to the tow vehicle, release the parking brake.
  9. Replace the fuse(s) in the fuse panel when finished towing.

Sep 15, 2011 | Chevrolet S 10 Cars & Trucks

1 Answer

2000 yr.isuzu 250 kb diesel has a noise coming from gearbox area when moving into 5th gear


Its a manual trans right? Those are probably worn syn rings in the transmission, or a loose throw out bearing on the clutch. but if it was a throw out bearing it should be happening in all gears. So its probably worn sync rings in the trans. this means you need your trans rebuilt. go to a local trans shop. to make it shift easier for now, try to match the speed of the car with the speed of the engine. what i mean is when upshifting to 5th gear, wait for a sec til the engine drops in rpms to shift (wait til the rpms are they would be right after you shift into gear). This will allow you to shift without syncs, and make it an easier shift. don't worry its easier then it sounds. but best to get it fixed

May 04, 2011 | Isuzu Pickup Cars & Trucks

1 Answer

1995 sunfire wont shift gear


There were two different automatic transmissions in the Sunfire that year,the 3 speed trans designated the 3T40,and the 4 speed trans designated the 4T40.If your car has the 4 speed trans,there will be a circle around the "D" on your gear selector indicator.The 3 speed trans will not have a circle around the "D".The 3 speed trans works off of a cable called the TV or Throttle Valve cable.This cable should be checked where it engages the throttle body around the area where the throttle cable attaches to the throttle body,on the engine.If the cable becomes disconnected for whatever reason,the trans will not shift out of 1st gear in most cases.If the car has the 4 speed trans,this model trans is totally electronic,and the vehicle should have the codes pulled out.For every trouble code,there is a diagnostic route to follow to repair the malfunction.

Sep 10, 2008 | 1995 Pontiac Sunfire

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