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1994 Hyundai I40 P0985 Fault Code Check

When you check 1994 Hyundai I40 car engine light came on code P0985 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Hyundai manufacturer may have a different definition for the P0985 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0985 1994 1994 Hyundai I40 Code Clear

To solve P0985 1994 1994 Hyundai I40 problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

1994 Hyundai I40 P0985 OBD-II Diagnostic Powertrain (P) Trouble Code Description

1994 Hyundai I40 car P0985 OBD-II Trouble Code Shifting from 1st to 5th is performed in combination with ”ON” and ”OFF” operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which is controlled by the Engine Control Module (

Reason For 1994 Hyundai I40 P0985 Code

The reason of 1994 Hyundai I40 P0985 OBD-II Fault Code Check is P0985 Shift Solenoid E Control Circuit Low.
P0985 Code Reason

1994 Hyundai I40 P0985 Possibble Fix Ways :

The engine relies on the glow plugs to generate heat to help with the combustion cycle. Some engines only use the glow plugs when cold but others will allow the glow plugs to work when the ECU (vehicle's computer) needs them to be on to help with combustion. Problems in this area will cause diesel engine starting problems, uneven running and white smoke when the engine is cold.

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0985 1994 1994 Hyundai I40 code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

What does fault code P0985 mean for 1994 Hyundai I40 ?
What does a diagnostic reading P0985 mean for 1994 Hyundai I40 ?
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