Other Concerns: Overheating

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OTHER CONCERNS: OVERHEATING

Possible Component	Reference/Action
257 - ELECTRICAL ROUTINE
Powertrain Control System
PCM, vehicle wiring harnesses, TFT sensor and SSB.	Carry out on-board diagnostic tests. Refer to the INTRODUCTION - GASOLINE for diagnosis and testing of the PCM. GO to PINPOINT TEST A and GO to PINPOINT TEST B . Repair as required. Clear the DTCs, road test and rerun on-board diagnostic test.
357 - HYDRAULIC/MECHANICAL ROUTINE
Fluid
Incorrect level.	Adjust to correct level. Refer to PRELIMINARY INSPECTION in this article.
Incorrect Pressures
High/low pressures.	Check pressure at line tap. Carry out Line Pressure Test. Refer to SPECIAL TESTING PROCEDURES in this article.
Main Control
Bolts not tightened to specification.	Tighten to specifications.
Separator plate damaged.	Inspect for damage. If damaged, repair as necessary.
Contamination.	Disassemble and clean.
Valves/springs damaged, misassembled, missing, stuck, or bore damaged.	If damaged or parts are missing, install a new main control assembly. If misassembled, reassemble correctly. DO NOT stone, file or sand valves. This will remove the anodized finish and may result in further main control or transaxle damage.
Fluid Pump Assembly
Bolts not tightened to specification.	Tighten to specifications.
Gasket damaged.	Inspect for damage. If damaged, repair as necessary.
Porosity, cross leaks, plugged hole.	Inspect for damage. If damaged, repair as necessary.
Case
Case vent damaged.	Inspect for damage. If damaged, repair as necessary.
Torque Converter Assembly
Torque converter internal failure preventing engagement, piston application.	Remove transaxle. Inspect for damage. Carry out torque converter checks, refer to TORQUE CONVERTER CONTAMINATION INSPECTION in this article. If torque converter fails to pass the checks or is damaged, install a new or remanufactured torque converter.
Other
Restriction in the transaxle cooling system.	Refer to TRANSAXLE-TRANSMISSION COOLING for information and diagnosis of cooling issues.
Excessive trailer tow load.	Refer to SPECIFICATIONS on trailer towing.
Poor engine driveability	Check engine driveability. Refer to ENGINE SYSTEM-GENERAL INFORMATION .