Question about 2000 Pontiac Bonneville

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What cuases me to have no forward gears?

The tranny didn't grind or knock, and reverse still works. please help me out here.

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Possible your linkage needs adjustment. Its a do it yourself job but not without Hayes or Chilton's service manual

Posted on May 10, 2014

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The car has an automatic transmission and all of a sudden i had no reverse had no slipping or nothing the drive gears work fine no slipping grinding nothing shifts through all gears just fine


It may just need servicing/adjusting.

Your reverse gear is actually first gear ... when you select reverse another 'cog' fits into the toothed wheels to change the direction of first gear ... to give you reverse...

It may be a sticky valve or just a bit of adjustment (workshop job..) that is required.

What you can try ..

Start the car ... move the lever through all the positions several times (foot on brake..). Keep your foot on the brake and then put it in reverse and rev the car. Hard!

Try doing it several times.

An auto transmission works on valves opening and closing. Reverse gear - in comparison with the forward gears - is seldom used. The reverse valve can 'stick'. Try forcing it to open ... frighten it ... but keep your foot on the brake...

Jan 18, 2016 | 2001 Chrysler PT Cruiser

3 Answers

In turbo hydro 700 why would forward gears make the rear wheels go in reverse


Your differential is upside down. Ford model T's had the same problem. It was possible to mount the rear axle upside down which made the car go forward in reverse and backward in forward gears.

Mar 07, 2015 | Cars & Trucks

1 Answer

Gear knocks when shifting


please do say ,exaclty what knocks.
is this heard or felt or both.
is the sound inside car or outside,
there are 3000 parts in newer cars.
so direction to noise is complex , to the extreme

my guess, is car has a M/T tranny , a STICK, say so.....
and you are shifting and you mean the gears grind?
knocks , is something engines do ....
so you shift and all gears work? no not
you can shift up or down, so do all gears work or just 1 fails
and if fails tell use what you were doing.
driving on the road.?
or backing out of the driveway?
what?
give is CONTEXT. tell what you did, and what car did wrong.



Dec 28, 2013 | 1997 Honda Civic

1 Answer

In the highway the tranny just went, a grinding noise was heared from back of the tranny every time that put it in gear. after cooldown I was to able to move forward 50 mtrs, then, went again. After a...


You need to have it rebuilt

I would suggest you don't do that,having once
owned a trans repair shop

I would get rid of it & stay away from all van
type vehicles,especially caravans & all ford vans

Jul 17, 2011 | 1999 Dodge Grand Caravan

1 Answer

No Reverse


Check the oil trans filter. Could either be a bad linkage, or a bum synchro. Does it just flat not go into gear, or does it grind when you try to do it? Can you put it in reverse with the engine off?

I dont know exactly witch is you tranny; it sound like you broke the sun shell in the transmission.

For example, this is pretty common with the Chevvorlet 4l60e Transmission, when the sun shell breaks you will lose reverse and fourth gear, the only remedy is to replace the transmssion or have it repaired; the repair will require the transmission be removed and disassembled, you will need to purchase a new sun shell (get a heavy duty replacement) and a papper rubber kit for the repair, just find a good trans guy to provide the labor.

Hope this help.

Apr 06, 2010 | 1994 Jeep Grand Cherokee

2 Answers

No reverse 1994 jeep grand cherokee larado atomatic


Well, most likely it is a burned out reverse clutch pack. Which would require a trip to a tranny shop. The sooner the better, the longer you drive with the debris in the tranny the higher the likely hood of requiring a complete rebuild instead of just the reverse clutch pack. I hope this helps please rate this thank you

Mar 05, 2010 | 1994 Jeep Grand Cherokee

1 Answer

Tranny trouble??


TRANSMISSION FLUIDS CAN BE CAUSED BY ONLY A COUPLE OF THINGS. MOST COMMON BEING A WORN OR BROKEN SEAL. THE TRANSMISSION SEALS ON MOST CARS ARE MADE FROM RUBBER OR METAL. BEING IN ALL KIND OF EXTREME TEMPS FOR YEARS ON END NOT TO MENTION THE PARTS MOVING AROUND THEM WILL EVENTUALLY CAUSE LEAKS. ALSO FAULTY INSTALLATION (OF A SEAL) CAN ALSO CAUSE A LEAK TO HAPPEN. THE ONLY OTHER THING THAT CAN CAUSE A LEAK TO MY KNOWLEGE WOULD BE IF YOU BOTTOMED OUT A CAR LOW ENOUGH THAT IT CAUSES DAMAGE TO THE TRANS CASE OR PAN. One cause of grinding when shifting into reverse is improper adjustment of the clutch linkage. If the adjustment is correct when the clutch is depressed the gears should stop turning and eliminate the grinding. Make sure there is some free play in the linkage when the clutch is not depressed. Most manual transmissions do not have a sychronized reverse gear. When you try to go into reverse from neutral, the transmission countershaft (which is linked to the pilot shaft) is still turning. The main shaft (which is linked to the tailshaft) is not turning. Therefore, since there is no sychronizer (or clutch brake like on a heavy truck tranny) the sliding cluctch gear (splined to the main shaft) grinds against the main shaft gear (floating over the main shaft but meshing its respecive countershaft gear through the reverse idler). The slider's function is to lock the main shaft gear to the main shaft thereby transmitting power to the rear wheels in the desired gear ratio (depending on which main shaft gear is locked to the main shaft). The way to cure this is to select a forward gear to stop the transmission and then go to reverse, all the while holding the clutch down. If it still won't go into gear you can either slip the clutch ever so slightly to "bump" the gears while gently pushing the stick into reverse (not too hard!! you can bend or break forks!! OUCH!!) or go into neutral, let the clutch all the way out, go into a forward gear and then reverse.

Feb 26, 2010 | 1999 GMC Suburban

1 Answer

Tranny will go in reverse fine but it has no forward gears.


she's pooched, your forward gears in an automatic are completely separated from the reverse same with a standard either way your on your way to the tranny shop

Jun 29, 2009 | 2000 Ford F250 Super Duty Crew Cabs

1 Answer

MY 1997 NISSAN XE 2.4 LITER, 4 CYLINDER, 5-SPEED STANDARD 2WD TRUCK WILL NOT GO IN REVERSE WITH VEHICLE BEING STILL WITHOUT KNOCKING IT IN GREAR WITH YOUR FIST BUT IT WILL GO IN GEAR IF YOU ARE COASTING...


With the vehicle sitting still, ease the clutch out just a little bit while trying to engage reverse. If it pops in, even with a little grinding, it seems the bearings on the counter shaft may be a little stiff. Have you checked the level of the gear lube in the transmission?

Jul 28, 2008 | 1995 Nissan Pickup

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