Question about 1992 GMC Sierra

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The clutch lost all pressure in between shifting...What could of caused that? I wasn't having any problems before that

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There is some thing you got to check , first do you have to add any fluid to the clutch ? If you have to add the there is ome leak some along the clutch system ----- ther is the mater cylinder and the sleve cylinder ----- the sleve cylinder is mounted on the gare box , --- go to the bottom and move the rubber booth and see if you see any fluid there --if fluid there that mean that cylinder is leaking.----- if not check the to master cylinder and see if it leaking from out side or the inside of the car--- watch carefully --- if leaking , that mean the rubber is damaged on the master cylinder, but if no leaking any where the possible problem is the master cylinder rubber is damaged . let me know what you find

Posted on Aug 13, 2010

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1 Answer

Transmisson slips one day and okay the next what causes this


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Hopefully only your linkage, but may also be your throwout bearing going pain to change but with right tools couple hrs work might as well change clutch and pressure plate as well cause that\'s a usual if changing bearing or clutch pressure plate needs to come off. But as I said I\'d check linkage first. Hope this helps

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Tranmission doesn't shift properly, high rpms and whining noise


The transmission fluid filter is the problem. This service should have been done at 80,000 miles. A dirty filter will cause the charge pump whine and loss of charge pump pressure will cause clutch packs to slip. Do not perform this service yourself, Its messy and not for novices. Do not drive or damage to clutch pack friction plates will occur.

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What could cause a clutch pedal in a 1996 honda accord to lost pressure


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Dec 02, 2017 | 1996 Honda Accord

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2000 Honda Odessey code PO730 shift computer problem


most P07** codes are Transmission related for your vehicle DTC P0730: Problem in Shift Control System has the vehicle been shifthing funny? reving up before shifting?It will probably be need to taken to a repair facility to determine the cause of the problem. It could be caused by the shift solenoids not holding pressure or an internal clutch pack is going bad. From my experince it is usally caused by a failing clutch in the transmission requiring a rebuild or replacement

Oct 12, 2011 | 1997 Saab 900

1 Answer

2002 celica GTS Transmission makes noise when shifting souns like gears grind although clutch is pressed all the way down. Do not see where to check tranny fluid. I replacing the clutch difficult on this...


There may be several reasons for this. 1st, low transmission fluid levels can cause the gears to grind while shifting due to lack of lubrication. I would suggest checking the fluid level, there is a plug located on the side, in about the middle of the transmission which when removed should slowly seep oil from it. If it doesn't then you will need to add the recommended transmission fluid.
2nd, a maladjusted clutch can cause the same problem. Even though you have the clutch pedal to the floor, the clutch pressure plate may not be completely disengaging from the flywheel. This will cause pressure on the gears and synchronizers while trying to shift. I suggest having the clutch adjusted by a mechanic if you have never performed this function yourself. An inproper adjustment can severely shorten the life of the clutch.
The 3rd option may be a warn clutch component like the slave cylinder if equipped, the throwout bearing or even the pressure plate itself.
A visual inspection can be made of the clutch by removing the inspection plate from the bottom of the bell housing to view the flywheel and clutch. With someone depressing the clutch you should be able to see the clutch moving off the flywheel.

Aug 02, 2010 | 2002 Toyota Celica

1 Answer

I have a 89 toyota pickup 4 speed. When I'm stopped at a stop light, and let out on the clutch it seems like it has lost pressure. When I'm shifting down the road it shifts fine. I checked the fluid and it...


this sounds like the clutch slave is goin out, this unit is on the outside of the transmission. Possibly losing pressure!! Your transmission does not use transmission fluid, but instead gear oil. Have the following checked:
1. Clutch Slave (possibly worn)-this will cause soft or hard clutch pedal feel, slipping clutch, unintended clutch release, hard gear engagement, no/insufficient clutch movement.

*2. Clutch pedal Mounting Plate (possibly cracked)-this will cause improper gear engagement, hard gear engagement, soft pedal feel, insufficient clutch movement.

*this plate is located above the clutch pedal itself, apply pressure on the pedal with one hand while inspecting the plate for fatigue cracks(use a bright flashlight). This is very common on these models. This problem will eventually get worst and most mechanics never figure this out.

more questions email me at gimconsulting@ymail.com!!

Mar 15, 2010 | 1989 Toyota Pickup SR5

2 Answers

Cannot get into any gear


check make sure the clutch master cylinder working properly along with slave cylinder. both master and slave don't have to leak fluid to be faulty, the rubber seal inside the unit could be worned and when apply pressure the fluid blow by or seep between the rubber seal causing the the unit not to work properly giving you a weak feel and pressure at the pedal. both unit have to work properly in sync. if one are weak you will have the same issue. clutch should have a good tight feel not sloppy or weak. pressure plate will also play important role, weak pressure plate will also give you a weak pressure feedback from the foot pedal and also will cause the synchronizer in the transmission not to engage and work properly. check this basic item fist before messing with your tranny. clutch master and slave cyc are fairly cheap to fix and replace.

May 10, 2009 | 1993 Jeep Wrangler

1 Answer

My 2001 lincoln ls wont go into 4th or 5th gears. Took it to a trans shop and they recommended a rebuild for 3000+ dollars. But Ive been reading that alot of lincolns with the same problem getting err


call your dealer to get an estimate too.

Shift Patterns Upshifts
Transmission upshifting is controlled by the powertrain control module. The PCM receives inputs from various engine or vehicle sensors and driver demands to control shift scheduling, shift feel and torque converter clutch (TCC) operation.
The PCM has an adaptive learn strategy to electronically control the transmission which will automatically adjust the shift feel. When the battery has been disconnected, or a new battery installed certain transmission operating parameters may be lost. The Powertrain Control Module (PCM) must re-learn these parameters. During this learning process you may experience slightly firm shifts, delayed, or early shifts. This operation is considered normal and will not affect the function of the transmission. Normal operation will return once these parameters are stored by the PCM.
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Apply Components Band — Overdrive
For component location, refer to Disassembled Views in this section.
During 2nd and 5th gear operation, hydraulic pressure is applied to the overdrive servo.
  • This pressure causes the piston to move and apply force to the band.
  • This action causes the overdrive band to hold the overdrive drum.
  • This causes the overdrive sun gear to be held stationary through the adapter plate and the overdrive drum.
Band — Low/Reverse
For component location, refer to Disassembled Views in this section.
During 2nd gear operation, 1st gear operation and reverse, hydraulic pressure is applied to the low/reverse servo.
  • This pressure causes the servo to move and apply force to the low/reverse band.
  • This action causes the low/reverse brake drum to be held.
  • This action causes the low/reverse planetary assembly to be held stationary.
Band — Intermediate
For component location, refer to Disassembled Views in this section.
During 3rd gear operation, hydraulic pressure is applied to the intermediate servo.
  • This pressure causes the servo to move and apply force to the intermediate band.
  • This action causes the direct clutch drum to be held.
  • The intermediate band holds the intermediate brake and direct clutch drum to the case in 3rd gear.
  • This causes the input shell and forward sun gear to be held stationary.
Clutches — Direct
For component location, refer to Disassembled Views in this section.
The direct clutch is a multi-disc clutch made up of steel and friction plates.
  • The direct clutch is applied with hydraulic pressure and disengaged by return springs and the exhaust of the hydraulic pressure.
  • It is housed in the direct clutch drum.
  • During 4th, 5th, and reverse gear application, the direct clutch is applied transferring torque from the forward clutch cylinder to the direct clutch drum.
  • This action causes the forward sun gear to drive the pinions of the low/reverse planetary carrier.
Clutches — Forward
For component location, refer to Disassembled Views in this section.
The forward clutch is a multi-disc clutch made up of steel and friction plates.
  • The forward clutch is applied with hydraulic pressure and disengaged by return springs and the exhaust of the hydraulic pressure.
  • The forward clutch is applied in all forward gears.
  • When applied, the forward clutch provides a direct mechanical coupling between the center shaft and the forward ring gear and hub.
Clutches — Coast
For component location, refer to Disassembled Views in this section.
The coast clutch is a multi-disc clutch made up of steel and friction plates.
  • The coast clutch is applied with hydraulic pressure and disengaged by return springs and the exhaust of the hydraulic pressure.
  • The coast clutch is housed in the overdrive drum.
  • The coast clutch is applied when in 1st, 3rd, D4, and reverse positions.
  • When applied, the coast clutch locks the overdrive sun gear to the overdrive planetary carrier, thus preventing the one-way clutch from overrunning when the vehicle is coasting.
    • This allows the use of engine compression to help slow the vehicle and provide engine braking.
Clutches — Intermediate
For component location, refer to Disassembled Views in this section.
The intermediate clutch is a multi-disc stationary clutch made up of steel and friction plates which are in a module assembly that includes the cylinder and frictions.
  • Applied with hydraulic pressure.
  • Disengaged by a return spring and releasing of hydraulic pressure.
  • Hydraulic pressure is feed through a feed tube in the case worm trail.
  • Uses a bonded piston in an aluminum housing.
  • Applied in during a 2-3 shift event.
  • Transfers torque from the sun gear to the planetary carrier.
  • Torque transfer causes the one way clutch to engage and holds the sun gear from turning, delivering 3rd gear.
One-Way Clutch — Direct
For component location, refer to Disassembled Views in this section.
The direct one-way clutch is a sprag-type one-way clutch that is pressed into the center shaft.
  • The direct one-way clutch is driven by the ring gear of the overdrive planetary carrier.
  • The direct one-way clutch holds and drives the outer splines of the center shaft in 1st, 3rd, 4th and reverse gears.
  • The direct one-way clutch overruns during all coast operations and at all times in 2nd and 5th gear.
One-Way Clutch — Intermediate
For component location, refer to Disassembled Views in this section.
The Intermediate One-Way Clutch is a sprag type one-way clutch.
  • The Intermediate One-Way Clutch connects the intermediate assembly to the input shell and sun gear assembly in third gear.
One-Way Clutch — Low/Reverse
For component location, refer to Disassembled Views in this section.
The low/reverse one-way clutch is a sprag type one-way clutch.
  • The low/reverse one-way clutch holds the low/reverse drum and low/reverse planetary assembly to the case in 1st and 2nd gear.
  • In all other gears the low/reverse one-way clutch overruns.
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May 01, 2009 | 2002 Lincoln LS

1 Answer

Transmission or clutch problem


Did you remove the packing blocks out of pressure plate? sometimes they have them in there for shipping, also did you get the right throut bearing, ithink they have a long and short one. Is clutch in backwards?

Feb 10, 2009 | 1994 Chevrolet Silverado 2500

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