I have a 03 Ford Explorer 4.6 L - V8. It runs very rich. Whats the problem?

Asked by Oct 13, 2016 at 07:58 AM about the 2003 Ford Explorer Limited V8 AWD

Question type: Maintenance & Repair

I just installed a newer engine, with 57000 miles. and it's still the same as before.

6 Answers

222,885

CEL on?

94,435

Oxygen sensors are usually the culprit you may also have a clogged catalytic converter

1 out of 1 people think this is helpful.
40,195

Get the trouble code(s) read and post them here.

No Codes Showing.

23,065

What makes you think it's running rich?

16,600

Check for an internal code. Had to change the front cat converter on drivers side on my 2003

1 out of 1 people think this is helpful.

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