Question about 2000 GMC Jimmy

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Has no reverse but has all forward gears - 2000 GMC Jimmy

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  • Douglas Nov 07, 2012

    Sounds Like a rear pump, any other information?

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Did you mean the Tiger's transmission? It has eight forward and four reverse gears.

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Posted on Nov 07, 2012

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Posted on Jan 02, 2017

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1 Answer

50 horse 4 stwont go into reverse gear due to shaft problems


the drive shaft just drives a pinion gear in the prop box that drives to gears that spin in opposite directions all the time
by selecting forward with the selector rod , a dog gear is moved forward to mesh with one gear that is turning or moves the other way to engage the other gear that is turning
that is the forward or reverse action for the prop
if you have forward but no reverse the it is not a drive shaft problem but a selector rod adjustment that is not moving the dog far enough to engage the running gear

Jul 08, 2017 | Cars & Trucks

1 Answer

Vs auto have forward gears even in reverse any ideas please


A4LD stuck in forward, even while in neutral and reverse. - Ford ...

https://www.explorerforum.com/forums/showthread.php?t=216567

May 27, 2008 - 19 posts - ‎5 authors
I did find a thread that referred to an "always in a forward gear" A4LD problem, ... Eventhough band adjustment should not have anything to do with the .... in the transmission and then it auto shifts through the gears normally.

700r4 forward in all gears, even neutral, no reverse - Third ...

www.thirdgen.org/forums/.../631383-700r4-forward-all-gears.html
Oct 21, 2011 - 700r4 forward in all gears, even neutral, no reverse ... It has no reversebut when I put it in reverse it tries to pull the motor down like the rearend ...

my car is not moving forward or backwards even with gea


Dec 27, 2015 | Cars & Trucks

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

The reverse is going faster than forward


do you mean you have four reverse gears and only one forward gear or do you mean your rpms aren't going up as well in forward as in reverse

Aug 24, 2012 | 2003 Ford Explorer Sport Trac

2 Answers

I have a 1998 Oldsmobile Bravada auto trans drive works fine but no reverse


Are you sure you have all 4 forward gears? Most of the time a no reverse condition also means 1st and 3rd only.No 2nd or 4th.If you dont have all the forward gears as i suspect , the reaction shell is stripped or broken.If you do have all the forward gears then these are the two most common reasons you do not have reverse.1 reverse input clutches are damaged or burnt 2 forward cltches have slipped to the point they are welded together causing a mechanical bind in reverse and also causing the transmission to pull forward in neutral.Let me know if i can help.Good Luck.

Feb 28, 2011 | 1999 Oldsmobile Bravada

2 Answers

98 vw beetle wont go in reverse


I have a 1998 and I just confronted the same problem. It seems to take like 1 gear in reserve and like 2 gear in 1 gear. Any thoughts? I don't really it should be the transmission since it still works going forward in 2 different gears. Thanks.

May 13, 2010 | 1998 Volkswagen Beetle

1 Answer

I have a 2000 Expedition 4.6L Triton. I've had truck about 7 years and love it. I have had all the transmission issues this truck can have...(I thought) until now this: SYMPTOM Transmission drives well in...


4R100 or 4R70W?

Geartrain
Power is transmitted from the torque converter to the geartrain components through the input shaft and forward clutch cylinder.
  • By holding or driving certain members of the gearset, four forward ratios and one reverse ratio are obtained and transmitted to the output shaft. The ratios are as follows:


GEAR RATIO 1ST 2.71 to 1 2ND 1.54 to 1 3RD 1.00 to 1 4TH 0.71 to 1 REVERSE 2.18 to 1
Input Shaft
The input shaft is supported by two bushings in the stator support. End positioning of the input shaft is controlled by the splines in the converter turbine and the overdrive planet assembly.
Output Shaft
The output shaft is supported by two bushings in the case and by the slip-yoke and bushing in the extension housing. End positioning is controlled by the parking pawl gear and snap ring or shoulder and by the reverse ring gear hub and snap ring.
Overdrive System
The overdrive planetary system consists of the overdrive planet assembly, overdrive sun gear, overdrive ring gear, coast clutch cylinder, overdrive one-way clutch assembly and the center shaft, as shown in the following illustration. The overdrive planet assembly is splined to the input shaft. The overdrive sun gear is centered by a bushing on the input shaft and held in place laterally by needle bearings on the reactor support and the overdrive planet assembly. The overdrive sun gear is splined to the coast clutch cylinder, which in turn is splined to the overdrive one-way clutch inner race.
The outer race of the one-way clutch is splined to the overdrive ring gear, which is splined to the center shaft. The center shaft is centered by the forward planetary assembly and is laterally held by needle bearings on the center support and the overdrive planet assembly. The center shaft is splined into the forward clutch cylinder.
Two friction clutches are assembled in the overdrive planet assembly. The coast clutch is splined between the coast clutch cylinder and the overdrive ring gear. The coast clutch is activated to perform engine braking in MANUAL 1, MANUAL 2 and third gear with the transmission control switch engaged.
The overdrive clutch is splined between the case and the coast clutch cylinder. The overdrive clutch holds the coast clutch cylinder and, in turn, the overdrive sun gear, to permit the planet assembly to overdrive the ring gear.
--------------------------------------------------------------------------------------------
Forward Drive System
The forward drive system consists of the forward clutch cylinder, intermediate brake drum, intermediate one-way clutch, input shell, forward ring gear, forward ring gear hub, forward/reverse sun gear and the forward planetary carrier and forward planetary gears.
The forward clutch cylinder is splined on the center shaft. The forward ring gear is piloted on the forward ring gear hub. Thrust bearings on the forward planet assembly and forward clutch cylinder hold the forward ring gear hub in place.
The intermediate brake drum is radially supported by bushings on the center support and is laterally controlled by thrust washers on the forward clutch cylinder and center support. The intermediate brake drum has the inner race of the intermediate one-way clutch press-fitted on its pilot. The intermediate one-way clutch's outer race is splined to the intermediate friction clutch, which is splined to the case. The intermediate brake drum has lugs that are slotted into the input shell to form a mechanical connection. The input shell is splined into the forward/reverse sun gear. The forward/reverse sun gear is common to two planetary gearsets. The forward planet is splined to the output shaft and is laterally positioned by needle bearings on the sun gear and on the forward clutch cylinder, as shown in the following illustration.
Two friction clutch assemblies, the direct clutch and the forward clutch, are shown with the forward planetary assembly. The direct clutch assembly splines the forward clutch cylinder to the intermediate brake drum. The forward clutch assembly splines the forward clutch cylinder to the forward ring gear. The forward clutch is activated during all forward gears. While in third or fourth gear, both the direct and forward clutches are applied to hold the forward planetary assembly and enable it to act as a solid shaft.
In second gear, the intermediate clutch assembly holds the forward/reverse sun gears. It is applied, along with the intermediate one-way clutch, to hold the intermediate brake drum, input shell and forward/reverse sun gear. In higher gears, the one-way clutch overruns.
----------------------------------
Low and Reverse Drive System
The reverse planetary assembly consists of the reverse planetary carrier, reverse planet gears, the reverse ring gear, the reverse ring gear hub, the reverse clutch hub and the low-reverse one-way clutch assembly.
The reverse ring gear hub is splined to the output shaft and to the reverse ring gear. The reverse ring gear hub is laterally held by a needle bearing on the inner race of the low-reverse one-way clutch and a snap ring on the output shaft. The reverse planet assembly is splined to the low-reverse clutch hub. The low-reverse clutch hub is connected by the reverse clutch to the case. The inner race of the one-way clutch is bolted to the case.
The reverse clutch assembly is activated in REVERSE gear and in MANUAL 1. The reverse clutch bypasses the reverse one-way clutch during coast and MANUAL 1. The reverse clutch holds the reverse planet assembly in REVERSE gear to enable the sun gear to drive the reverse ring gear in the opposite direction.
-------------
Apply Components
The following information describes the operation of the three 4R100 one-way clutches.
One-Way Clutch—Overdrive
The overdrive one-way clutch, shown in the following illustration, transmits engine torque from the overdrive sun gear to the overdrive ring gear in first, second and third gear range. The overdrive one-way clutch transmits power when the sprags are engaged between the inner and outer races. The inner race is splined to the coast clutch cylinder, which in turn is splined to the overdrive sun gear. The outer race is splined to the overdrive ring gear.
The overdrive one-way clutch engages whenever the overdrive planetary system attempts to drive the overdrive sun gear clockwise when the overdrive ring gear has a counterclockwise torque from the vehicle. When torqued counterclockwise, the overdrive one-way clutch engages and acts as a wedge to lock the sun gear and the ring gear together. During coast, the overdrive one-way clutch enables the ring gear to overrun or spin at a faster rate than the sun gear.
The overdrive one-way clutch overruns when in overdrive (fourth gear). In overdrive, the coast clutch cylinder is held by the overdrive one-way clutch, which in turn holds the overdrive sun gear. This causes the overdrive planet assembly to walk around the sun gear and overdrive the overdrive ring gear. The inner race of the overdrive one-way clutch is thus held stationary while the outer race is allowed to overrun clockwise.
--------------------------------------------

Nov 10, 2009 | 2000 Ford Expedition

1 Answer

NO REVERSE, FORWARD GEARS IN REVERSE


i think you meen you only have reverse and no forwards gears?
if so its likley to be the linkage for forward gears look at the gear box to see if any thing is hanging off a cable or push rod it could also be up in the car under the gear leaver

Oct 30, 2009 | 1995 Jeep Grand Cherokee

1 Answer

1990 VW cabrio wont reverse. Seems in gear but only goes forward


left and push the shifter into the floor like stabbing down ten it will go left a little more and push forward and you will be on your way in good ol R

Jul 25, 2009 | 1990 Volkswagen Cabriolet

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