Question about 1995 GMC Sierra C1500

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1998 4 speed trans ,clutch goes to floor , it goes in and out were it has pressure then just goes to floor ,but when it does work it shifts fine?

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If you aren't adding any fluid, then you likely have a bad clutch master cylinder.

Posted on Mar 09, 2009

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1998 Honda Civic manual trans will not shift into gears. Car starts, push in clutch and it goes to the floor, release clutch and comes back up. Unable to put into gears. Brake fluid and clutch fluid seem...


Eric, how are you confirming whether or not the car goes into gear if you shift gears without the engine running? One way would be to put it in 1st and see if you can push the car. If you can't, it is in gear.

Another option is to roll the car slightly forward or backward (engine off) while trying to put the car in gear. Once it is in gear, then the car shouldn't move any further. However, if it goes into gear, DO NOT start the car without taking it back out of gear.

The clutch is much more likely to be the problem than the transmission.

If the clutch fluid ever ran dry, then the clutch hydraulics will need to be bled of air. Otherwise, the problem could be the clutch master cylinder, slave cylinder or throwout bearing. Since you didn't report the clutch slipping (e.g. engine revving without accelerating when in gear) it is likely not the clutch disks themselves.

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This indicates your clutch needs adjustment or the pressure plate is worn out. If the clutch will not disengage with the engine turning the gears inside the trans continue to turn so you can not shift gears. If you are driving you can shift when you rev the engine to match internal gear speed. You can shift with out the clutch up shift and down shift. One thing to look for is the clutch oil reservoir check to see if she has enough oil.

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do you mean the 5 speed manual transmission will not go into gear? and it is a 4x4 truck? I would check clutch linkage and fork or slave cylinder if it applies to this model. Is it grinding at all? Can you determine if the pressure plate is actually disengaging the cluch plate. If the pressure plate is properly disengaging then the problem may be the shift fork in trans is broke,wedged. trans mainshaft broke, I'm not sure but does that year have a removable floor pan cover under floor mat above trans? AS you can pull the top off trans and inspect without pulling trans out of truck.

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When i take off in my truck it goes threw every gear great but when i floor it. my rpms rev up and the truck goes no where what could that be?


Manual transmission? If so the clutch is shot.
Automatic transmission? If so then the clutches could be shot. If the truck eventually gets up to speed and seems better then the torque converter is bad. (internal sprag is broken) Automatic transmissions have a number of clutch packs and yours has at least one band as well. If pressure is low or the clutches are worn out it will slip. And it will get pretty hot too so your oil will smell bad and be a brownish color instead of pinkish red.

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What would cause a 98 Dodge Ram 1500 4x4 5.9L 360 to lag while driving? It sound like either the engine or the transmission is struggling and it seems to stay in lower gears longer than it should. It takes...


Get the pump pressure checked in your transmission. It sounds to me like you have low trans pressure. It will act like a slipping clutch in a manual. Also check your trans filter. It will amaze you the difference it makes when you change a clogged filter. Good luck.

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It sounds as though either the throw out bearing or pressure plate are bad. The grinding makes me want to lean towards the pressure plate.

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I will bet it grinds when you try to engage first or reverse. When this happened on my car, I adjusted the clutch and it improved. You need about a half inch of free play when you first touch the pedal with your foot. If you have a slave cylinder, (hydraulic clutch). You may need to bleed the system. With air in the system, you can't get enough clutch to fully disengage the trans from the motor.(Clutch and pressure plate) It's like you only pushed down half way on the pedal. If it's not hydraulic, it should be adjusted with wrenches. If clutch is fine, It could be a loose shift linkage. It would seem extra sloppy when moving shifter, It would just not go in gear, with out the grinding.Hope this helps. lbreen

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Ok, Clutch engagement point should be midway or just before midway in relation to total travel.(pretty much the same in any clutch vehicle) assuming that if put in lets say 1st gear, with clutch in,then engine started, when clutch is released, car does not move but there are no unusual noises (grinding from inside trans.) If this is the case, I'd first check linkage for adjustment. If OK, remove the trans and look inside for broken gears, excessive metal debris etc.If shift rails are internal it could be that shift forks are sliding on rails and failing to engage synchros.

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