Question about Isuzu Rodeo

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Transmission leaks just above the valve body assembly,looks like a seal, what is this

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The pan gasket is a common leak on most transmissions if they do leak ( alll leaks are bad ) You might be able to stop the leak by just tightening the bolts a little. Most of the time it's not a gasket that your looking at but, a silacone ( liquid ) slealr that dries to form a gasket. Most of the time it their leaking you need to drain the trans remove the pan clean off all the old gasket ( really well, no oil even ) and the trans tooand with it clean and dry install a newgasket ( Or sealant). Most gaskets are sold in a transmission filter and gasket kit so install the new filter to and as you drained out the fluild put in the correct amount of new fluild. As recomended for your car ( theres lots of different kinds) Being you did'nt say the year or model engine size or transmission type even car or truck i can't tell which one is yours. Be carefull tighting the bolts ( their hard too get out if you break them) If using silacone sealer it's very important too get al the oil off ( it won't stick to the pan or the trans as it'll be sticking to the oil instaed ) let it tack up as the directions on the tube recomends and then install the pan with the bolts just run up ( in but not tightened) let the sealer dry then tighte the rest of the way The tube says how long to wait and how thick to put it on.

Posted on Oct 15, 2010

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My 2005 Pontiac Bonneville GXP will not shift into 4th gear I was to it was a fourth gear band but is that the only problem that will cause itI'notto shift into 4th gear


Which transmission does yours have 4T65-E or 4T80-E ?

4T80-E
No Fourth Gear

Checks

Causes

1-2 Shift Solenoid Valve
?€¢
Inoperative
?€¢
Debris
?€¢
Pinched wires

3-4 Shift Valve Bore Plug

Misassembled

4th Band

Burned, slipping, missing

4th Servo Cover

Cracked

4th Servo Pin

Broken, seized

4th Servo Piston

Damaged

4th Servo Seals

Rolled, cut or damaged
4T65-E
Slipping or No Fourth Gear
Slipping or No Fourth Gear Checks
Cause

DEFINITION: A large engine RPM increase is noted in fourth gear, Drive range, with little or no vehicle forward speed increase. First, second, and third gear operation are normal. Shifts into fourth gear are soft or do not occur. Fourth gear ratio is 0.705:1.

Automatic Transmission Fluid Level
Low fluid level

Transmission Main Line Pressure
Low transmission main line pressure

Oil Filter Assembly
• The oil filter assembly (100) is missing, plugged, or damaged.
• The oil filter seal assembly (101) is missing or is damaged.

Control Valve Body Assembly
• The 3-4 shift valve (362) or the 4-3 manual downshift valve (360) is stuck or binding.
• Debris is found in the passages of the control valve body (301) or of the control valve body spacer plate and gasket assembly (396)

Case Cover Assembly
Distortion or damage occurs at the manual valve (404) or at the case cover (401), causing PRN oil leak.

Driven Sprocket Support Assembly
A plugged third clutch oil passage in the driven sprocket support assembly (609)

Fourth Clutch Assembly
• The clutch plates (500-502) are worn, damaged, or misassembled.
• A missing or not seated fourth clutch spring retaining ring (601)
• A damaged spring assembly (602) or piston (603)
• Worn or damaged fourth clutch piston seals (604, 605)

Third Clutch Sprag Assembly
• The sprag (720) was misassembled or backwards on the inner race (661).
• A damaged third clutch sprag assembly (653, 661, 719-721)

Dec 06, 2015 | Pontiac Cars & Trucks

1 Answer

Would a modulator valve on a 2004 grand am not go in reverse


2004 doesn't have a modulator valve . An if it did it would affect all gear operation , Shift hard , but would still go into gear. You have an internal transmission problem !
No Reverse, Slips in Reverse
Checks
Causes
Reverse Clutch
No apply or slipping
Piston and Seal Assembly (457)
Binding, cracked, or leaking
Inner Seal (456)
Plugged orifice
Clutch Plates (460-463)
Worn friction or broken splines
Snap Ring (459, 464)
Out of position
Housing (454)
Cracked, plugged feed holes, or broken tangs
Housing Retainer and Ball Assembly
Missing or out of position
Springs (458)
Binding
Reverse Clutch Fluid Routing
Fluid leak or restriction
Driven Sprocket Support (95)
?€¢
Leaking seal rings


?€¢
Porosity, damage, misalignment

Channel Plate and Gasket, and Valve Body, Gaskets, and Channel Plate
Porosity, fluid leak across the channels, misalignment, damage, or fluid restriction
Low and Reverse Band and Servo
No apply or slipping
Servo Piston (69)
Broken or binding
Servo Piston Seals (71, 72)
Leaking
Servo Pin (67) and Springs (66, 68)
Binding
Servo Cover (73)
Broken, loose, or leaking
Low and Reverse Band (111)
Broken, worn, or out of position
Anchor Pin (64)
Broken
Fluid Feed Tubes (83)
?€¢
Broken, bent, or plugged


?€¢
Missing or leaking seal rings

Transmission Case (1)
Porosity, fluid leak, or restriction
Shift Linkage
Disconnected or misaligned
Manual Valve (800) and Link (802)
Disconnected or misaligned
#1 Checkball
Missing, no low band fluid
Fluid Level
Low
Fluid Pressure
Low
Refer to High or Low Line Pressure .
suggest you take to an ASE certified transmission repair facility !

Oct 10, 2015 | 2004 Pontiac Grand Am

2 Answers

2003. Why does it move forward but not in reverse?


There are several thing's that can cause a no reverse !
No Reverse, Slips in Reverse
Checks
Causes
Reverse Clutch
No apply or slipping
Piston and Seal Assembly (457)
Binding, cracked, or leaking
Inner Seal (456)
Plugged orifice
Clutch Plates (460-463)
Worn friction or broken splines
Snap Ring (459, 464)
Out of position
Housing (454)
Cracked, plugged feed holes, or broken tangs
Housing Retainer and Ball Assembly
Missing or out of position
Springs (458)
Binding
Reverse Clutch Fluid Routing
Fluid leak or restriction
Driven Sprocket Support (95)
?€¢
Leaking seal rings


?€¢
Porosity, damage, misalignment

Channel Plate and Gasket, and Valve Body, Gaskets, and Channel Plate
Porosity, fluid leak across the channels, misalignment, damage, or fluid restriction
Low and Reverse Band and Servo
No apply or slipping
Servo Piston (69)
Broken or binding
Servo Piston Seals (71, 72)
Leaking
Servo Pin (67) and Springs (66, 68)
Binding
Servo Cover (73)
Broken, loose, or leaking
Low and Reverse Band (111)
Broken, worn, or out of position
Anchor Pin (64)
Broken
Fluid Feed Tubes (83)
?€¢
Broken, bent, or plugged


?€¢
Missing or leaking seal rings

Transmission Case (1)
Porosity, fluid leak, or restriction
Shift Linkage
Disconnected or misaligned
Manual Valve (800) and Link (802)
Disconnected or misaligned
#1 Checkball
Missing, no low band fluid
Fluid Level
Low
Fluid Pressure
Low
Refer to High or Low Line Pressure .
Most likely your trans needs to be rebuilt !
to

Jul 26, 2015 | Pontiac Grand Am Cars & Trucks

1 Answer

0700 codes after replacing speed sensors


Hi there:DTC P0700 is a generic warning code that advice about a transmission fault specific code stored there. In this case, your addicional specifi code is P0740.
DTC P0740 - Torque Converter Clutch control circuit (A/T Torque Converter Clutch - No RPM Drop At Lockup)

This can be caused from as little as a blown fuse or bad ground to a bad valve body in the transmission. I would suggest a transmission shop to further diagnose since there are pressures that need checked and circuits that will need checked with diagnostic equipment. Here is a description and the testing procedure for DTC P0740. Keep in mind that there is a good chance the trans will need rebuilt.



Possible Causes:

Internal transmission component fault (Input or Reaction shaft) Internal transmission leakage (valve body leaking or seal rings) Converter clutch valve or clutch timing valve is sticking TCC assembly has failed.



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Jun 08, 2012 | Dodge Grand Caravan Cars & Trucks

1 Answer

P1870


CODE PO1870 IS TRANSAXLE COMPONENT SLIPPING CONDITIONS.LOOKING AT POSSIBLE CAUSES TRANSMISSION VALVE BODY NEEDS OVERHAUL ALL SHIFT VALVES HAS SEDIMENT DAMAGE OR LEAKING SEALS.THE TORQUE CONVERTER FRONT STATOR SHAFT BUSHING IS WORN THE STATOR ROLLER CLUTCH IS NOT HOLDING.THE TORQUE CONVERTER CLUTCH VALVE STUCK.PUMP TO CASE GASKET LEAKING.THE ORIFICE CUP PLUGS ARE RESTRICTED OR DAMAGED.

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2 Answers

Car will not go foward until 180 degrees willback up fine if cold


It sounds like you have some worn seals in your valve body or your clutch drums inside the transmission. When cold, these seals contract, causing an internal hydraulic leak. Once the fluid temperature heats up, the seals expand and begin to seal again. Transmission overhaul will be required to fix it.

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2 Answers

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TRANSMISSION THERMOSTAT INSIDE TRANSMISSION ON VALVE BODY YOU HAVE A PRESSURE LEAK CHECK TRANSMISSION OIL COOLER LINES FITTING TO RADIATOR FOR LEAKS LOOK UNDER CAR WHILE IT RUNNING LOOK FOR FLUID LEAKS. YOU COULD A LEAKING TORQUE CONVERTER SEAL.

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1 Answer

I have the pan pulled from my Transmission, and the fluid is red, clear, and no residue in the pan. I'm looking for the filter, but don't exactly know where it it. It has been slow to shift and go forward,...


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1 Answer

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hope2help shack

Apr 17, 2009 | 1992 Volvo 940

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