engine light code PO128

MLC · Post by **MLC** » Sun Oct 16, 2005 11:54 pm

Engine light keeps coming on. Had it checked 2 days ago and got Code PO128: Coolant temp below regulating temp.Light reset, no problems found... light came back on two days later.Gas cap is tight...any ideas.Thanks,MLC

ColonelPanic · Post by **ColonelPanic** » Mon Oct 17, 2005 12:15 am

Welcome aboard. We had someone else around who had something similar, I'll see if I can dig up the thread for you.Sounds like it is running too cold... I would start with checking into the thermostat, could be stuck open, not allowing the engine to warm up to where it needs to. Wouldn't be a bad idea to get a coolant flush while you're at it. What year, engine, and mileage do you have?

ColonelPanic · Post by **ColonelPanic** » Mon Oct 17, 2005 12:21 am

Yep, here you go - same code and everything. Maybe that will help.

engine light code PO128

engine light code PO128

Re: engine light code PO128 (MLC)

Re: engine light code PO128 (MLC)