Overheating

robertbarnes62 · 2018-07-02T12:36:59+00:00

I was driving today with the AC on and noticed when I stopped at a light my truck temperature gauge shot up to the hottest on the display. A red light also came on to indicate it was too hot. Once I started going again it cooled off instantly and the gauge returned to normal temperature. I checked the oil to see if there was any coolant in there and there was not. I checked the coolant to see if there was either lack of coolant or oil in my coolant and neither were true. So I am wondering what else could make it overheat and act like that?

1999 FORD EXPEDITION

200,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC

STEVE W.

✓Experienced Mechanic
15,367 POSTS

That is an indicator that you are having a misfire. Run the code and it will tell you which cylinder it thinks is missing. Then you can pull the plug and check for anything odd in that cylinder.

Dec 16, 2018 at 6:26 AM

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