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2004 Dodge Ram 2500 Question: My dodge is setting a code p0175. The engine runs rough. What is causing this?



Nikko1968, 5.7L V8 HEMI, Houston, TX, January 27, 2013, 00:39

I have replaced all 16 plugs, spark plug wires, coils, o2 sensors, and the PCM has been flashed with the latest software. The map sensor is reading 15.0 inHg, and the ECT is at 192F. Any input would be great! Thanks.

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  • Answer #1

    torque wrench from Stewart's Auto Repair LLC, January 27, 2013, 18:49

    check the valve springs, The hemi has valve spring problems that causeit to go into limp mode. It will run but rough, and you will get al kinds of ghost codes as I call them. The problems just aren't really there. If you find it is the vavle spring, check with you local machine shop to see if they have to after market valve spring with the girdle around it. These are made to stop this problem.

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