Question about 1996 Mazda Pickup

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Could not engage gear at a stop light; some grinding~finally into gear~couldn't engage 1st or 2nd; could manipulate gear shift without the clutch engaged! Parked vehicle overnight~next morning.....absolutely no problems!!! Insight? Feedback please?

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  • Anonymous Nov 10, 2008

    My understanding is that the brake/transmission (dot4) fluid will boil off and then re-condense after some time off.

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Sounds like low fluid in the hydraulic clutch system, look under the hood next to the firewall on the drivers side should be a small resevior with a black top. Remove the top and check the level, if it gets even slightly low this problem will occur. it takes dot 3 or 4 brake fluid. If it is not low it could be that your slave cylinder is going bad. Also you may need to change out the fluid in your transmission, recomended at 60,000 mile intervals.

Posted on Feb 27, 2009

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My 1999 Chevy Silverado 1500 Z71 makes a clunking noise and feels like it got rear ended if I drive it for an hour or so non stop. It seems to be when it shifts from 1st to 2nd gear. I had the ******...


No one can tell you what it is.This is the operating characteristic of your transmission and customer do object to the noise or clunk and dealer discourage the repair. This is TSB 03-07-29-004G. Let me give you a partial copy. INFORMATION
Bulletin No.: 03-07-29-004G
Date: December 15, 2010
Subject: Manual Transmission Operating Characteristics
Cold Operation
Manual transmission operation will be affected by temperature because the transmission fluid will be thicker when cold. The thicker fluid will increase the amount of force needed to shift the transmission when cold. The likelihood of gear clash will also increase due to the greater time needed for the synchronizer assembly to perform its function. Therefore when the transmission is cold, or before it has reached operating temperature, quick, hard shifts should be avoided to prevent damage to the transmission.
Backlash
Backlash noise is created when changing engine or driveline loading. This can occur when accelerating from a stop, coming to a stop, or applying and releasing the throttle (loading and unloading the driveline). This will vary based on vehicle type, build variations, driver input, vehicle loading, etc. and is created from the necessary clearance between all of the mating gears in the transmission, axle(s) and transfer case (if equipped).
Shift Effort
Shift effort will vary among different style transmissions and synchronizer designs. Usually the more heavy duty the transmission, the higher the shift effort because of the increased mass of the components. Shift effort can also be higher in cold weather because the fluid will be thicker. Medium duty transmissions will not shift as quickly as a Corvette transmission. To reduce shift effort, do not attempt to rush the shift - allow the synchronizers to work as designed. Shifting harder will only increase the chance of rushing past the synchronizer leading to grinding while shifting.
Non-Synchronized Gears
Some light duty truck transmissions in 1st gear (creeper-gear) and reverse gears in various transmissions, along with all gears in some medium duty transmissions, may be non-synchronized. This means there is not a mechanism to match input and output shaft speeds to allow for a smooth shift. This function is left up to the driver. This can be noticed if a shift into 1st or reverse is attempted while the vehicle is rolling or before the input shaft stops rotating leading to a gear grind. The grinding can be reduced by coming to a complete stop and pausing for a moment before shifting into the 1st or reverse gear. Some slight grinding can be expected. In medium duty non-synchronized transmissions, the driver must match input shaft (engine) speed to output shaft (driveshaft) speed with every shift. This can be accomplished by double clutching, or by using other methods. If the driver is not able to perform this function properly, there will be gear grinding with each improperly completed shift. Driver training may be required to correct this condition. Clutch brakes are used in medium duty non-synchronized transmissions to allow a shift into gear at a stop. The clutch brake is used to stop the input shaft from spinning, allowing a shift into gear at a stop without grinding. The clutch brake is activated by pressing the clutch pedal all the way to the floor. When the clutch brake is used, it is possible to have a blocked shift with the vehicle stationary. If this occurs, engage the clutch slightly to rotate the input gear to allow the shift. The clutch brake is intended to only be used while at a stop. Care must be taken to not activate the clutch brake while shifting between gears. This could lead to excessive grinding or a blocked or missed shift.

Aug 29, 2011 | Chevrolet Silverado 1500 Cars & Trucks

2 Answers

Grinding gears from 1st to 2nd, 3rd to 5 ok


Either your clutch is getting bad, or you're shifting down too soon, and up too late. Try double clutching. Push in your clutch and push it into neutral. Release the clutch, fan the gas pedal, push the clutch again and shift into 1st. All this does is sychronize the speed of the transmission with the speed of the engine. There were, in the 60's, a lot of cars with the old "three on the tree" that you had to do this every time, and you get pretty good at it after a while.

Jun 02, 2009 | 1995 Hyundai Sonata

1 Answer

1991 Mercury Topaz with 5-speed will not go into gear.


how much clutch pedal do you have when the car is running does the pedal feel loose? if the clutch is not disengaging when depressed it is most likely time for a new clutch

Apr 20, 2009 | 1991 Mercury Topaz 4 Door

1 Answer

2000 Chevy Metro New Clutch and now can't shift into 1st Gear


With ALL due respect, I speak from a 30 year Career of AUTO & Heavy Truck Experence of Fleet Management and Personal Customer Auto Care, and by NO means do I mean any Disrespect to you here.
As Long as is Does Not grind while UP SHIFTING you R fine , DOWNSHIFTING into 1st Gear BEFORE 20 mph is a Disaster Waiting to Happen EXAMPLE> Just BECAUSE a car CAN run at 120mph does not Mean One SHOULD do it. If it downshifted to 1st gear before 20 mph with OTHER Clutch that was due to WEAR, there MAY be a bit of AIR in the Release bearing or Slave cylinder, That needs to be BLED OUT, DOWNSHIFTING IS NOT A recommended Practice Unless its an EMERGENCY STOP condition, as It Causes Premature Wear on Clutch Disc. I Know this MAY seem UNTRUE as you may have done it for years But IN FACT A Clutch is MADE to Simply Get From LOWER GEAR TO HIGHER GEAR, but if you Downshift ALL of the time you WILL Subject the Clutch to TWICE the WEAR you Should THUS WEARING it OUT TWICE AS FAST $ thats $$$$. A good number of shops wont Advise you this Far as it Would REDUCE THERE Profit. I Hope I Have shed some Light on this delima, And Think of the MONEY you Can SAVE on TWICE the Longevity with 1 Clutch Job. Again I hope this Helps you, And If you FEEL that I Deserve A GOOD RATING Please do so ,as Most folks get there Answers and GO without Rating US LoL Thank You !

Mar 25, 2009 | 1992 Geo Metro

1 Answer

Hydraulic clutch grinding from 1st to 2nd - Toyota 1985 Pickup


Yes, your clutch might be worn and/or out of adjustment or the trans is worn. Your clutch may be fine also. Toyota's have a problem with there shifter bushings and seats. They brake and crack also causing shifting problems. And some times only one gear depending on the condition.If yours is broken,crack or damaged, you can find the parts from Toyota and there a whole lot cheaper than a clutch. Also I recommend adjusting the clutch if possible. Not all are adjustable. Check your clutch fluid.


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Mar 24, 2009 | 1985 Toyota Pickup

1 Answer

2nd gear clutching


STOP Downshifting!
STOP Forcing gear change, watch the Engine RPMs and shift accordingly, HOMBRE's are as good as the operator's. Hombre's have dash shift indicators which illuminate when it's time to 'shift' and not before, This has nothing to do with gear oil either. If you've drained it, you best fill it immediately and make sure it's ample level. The heat these gears sustain in is inceredible, cooling lubricant is essential. Here's a tip, while engine is OFF, ignition key is engaged, dash is illuminated, depress clutch peddle, keep it depressed and walk through all gears with gear shift, shifting should be smooth and unpeded, including reverse. If resistance is experienced at one or more gears, gear alignment is off as a result of inproper gear shifting while driving. Continue to drive vehicle just shift slower until clutch needs replacement then do an entire drive shaft upgrade. It worth it, it's great truck.

Jul 25, 2008 | 1998 Isuzu Hombre

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