I would like to know how oil flows through the automatic transmission and please designate which of the two pipes that connect to the oil coolers is output and input.
There are two pipes that connect to a black round cylinder which feeds oil to both the bottom of the radiator and an external cooler housed in the passenger side fender. I would like to know which of the pipes coming out of the transmission to the black cylinder is output and which is input.
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if you are referring to the oil cooler for an automatic transmission, then it will mostly be in the radiator bottom/side tank and uses coolant to cool the oil. They have a habit of cracking/leaking and putting red oil in the radiator or allowing coolant into the transmission. The fix for this is costly flushing of the engine system and transmission and a new radiator. I would consider an air cooled oil cooler as they are more efficient and not prone to coolant problems.. They are generally cheaper than a radiator as the inlet/out let pipes can be blocked off
if you get under the car on the driver side were the oil filter is and look were the filter screw onto the motor,if you see 2 large lines coming from the plate that the filter screws onto going to the front of the motor and attach to the lower rad then you have an engine oil cooler in the radiator.there will be lines that come from the transmission to the radiator that are considerably smaller.
some cars are designed with an engine oil cooler that allows radiator coolants to run through it to aid cooling the oil for longer life. and most of the radiators are designed to cool automatic transmission fluid which is routed through an oil cooler in it.
Raise the vehicle. Support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
Disconnect the range selector cable from the transmission bracket and from the transmission range select lever. Refer to Shift Cable Replacement .
Remove the rear propeller shaft. Refer to Rear Propeller Shaft in Propeller Shaft.
Support the transmission with a transmission jack.
Remove the transfer case if equipped. Refer to the appropriate Transfer Case Replacement in Transfer Case:
Transfer Case Replacement (Selectable Four Wheel Drive) .
Transfer Case Replacement (Auto Four Wheel Drive ) .
Transfer Case Replacement (Manual Four Wheel Drive) .
Gasoline Engine--Remove the following components:
The transmission to engine brace
Diesel Engine--Remove the following components:
The transmission to engine brace
Remove the transmission rear mount.
Remove the frame crossmember.
Remove the exhaust pipe from the exhaust manifolds. Remove the muffler assembly from the exhaust pipe, if required. Refer to Exhaust System.
For the 5.0L Gasoline Engine: Remove the six bolts securing the converter cover to the transmission.
Remove the starter. Refer to Starter Replacement in Engine Electrical.
For the 4.3L Gasoline Engine: Remove the dust plug at the end of the starter mounting port in order to gain access to the converter bolts.
For the Diesel Engine and 7.4L/5.7L Engines: Remove the four bolts securing the converter cover to the transmission.
Mark the flywheel and the torque converter alignment.
Remove the bolts that attach the torque converter to the engine flywheel.
Remove the transmission vent hose.
Disconnect the wiring harness connectors from the vehicle speed sensors and from the park neutral position switch.
Remove all vehicle electrical harness wires, harness clips, tubes, and brackets that may interfere with the removal of the transmission.
Remove the fluid fill tube and the fill tube seal from the transmission. Refer to Filler Tube Replacement .
Plug the fluid fill tube opening in the transmission.
Disconnect the transmission oil cooler pipes from the transmission. Refer to the oil cooler pipe quick connect fittings removal procedure in Oil Cooler Hose/Pipe Replacement .
Plug the transmission oil cooler pipe connectors in the transmission case.
Install the J 21366 in order to keep the torque converter from sliding off of the transmission turbine shaft.
Support the engine with a suitable jack stand before removing the transmission from the engine.
5.0L and 5.7L Gasoline Engine: Remove the studs and bolts securing the transmission to the engine.
4.3L Gasoline Engine: Remove the studs and bolts securing the transmission to the engine.
Pull the transmission straight back from the engine.
Lower the transmission using the transmission jack.
Flush the transmission oil cooler and the pipes whenever you remove the transmission for overhaul, or replacement of the torque converter, the pump, or the transmission case. Refer to Transmission Fluid Cooler Flushing .
Clean the transmission case using a solvent dampened cloth. Do not allow solvent to enter the transmission.
Air dry the transmission.
Clean all hardware and the flywheel cover using solvent. Air dry all the parts.
Inspect all the components for wear and damage.
Inspect all the seals and the fittings for signs of wear.
Inspect the torque converter for stripped or broken weld nuts.
The Problem, My friend, is a leaking oil cooler. this item is mounted, inside the engine, under the intake manifold. The cooler or the connections are bad. Coolant flows through the cooler, if it brakes then the oil will contaminate your coolant and make a mess.!! Have it checked. Must times is the seals at the pipe to cooler flange connector. will need new seals.. Hope this helps.