Question about 1998 Dodge Ram 1500 4WD
Code 1683 is for a problem with the EGR solenoid which controls the EGR valve, and code 597 is for the IAC valve not being able to keep idle speed at the correct setting.
A leaking EGR valve could cause the symptoms you describe.
I assume you looked at the cap and rotor and they are ok.
Posted on Jan 16, 2013
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Posted on Jan 02, 2017
I think you have ruled out the engine with all the parts you have replace. The transmission torque convertor is in lock up mode all the time. The engine is having to hard of a time to stay at the normal idle. The over drive clutches and soleniod are most likely damaged in the transmission.
I think you should take the vehicle to a trasnmission shop , The can check the torque convetror soleniods and pressure control soleniod.
The oil light coming on bothers me. I know you have the rebuilt engine in the vehicle but I think the oil pump in the engine is starting to go out or could be weak. The lower bearings connected to the crank shaft might be starting to leak. Have the oil pressure checked .
Posted on Mar 19, 2009
code - 37 TCC brake switch circuit error. this is the torque converter clutch. Open or shorted condition detected in the torque converter part throttle unlock solenoid control circuit
Posted on Aug 11, 2010
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