Check engine light flashes four times within thirty seconds of cold startup

200,000 MILES • 5.0L • V8 • 4WD • AUTOMATIC
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MARK BOOTH
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Engine rpm advances about 500 to a 1,000 rpm's within about ten to twenty seconds of flashing. After you drive awhile the engine has a misfire.
Mar 3, 2019 at 5:29 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
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Good afternoon.

That is a misfire code.

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

How old are the plugs and the rest of the ignition system?

Most cases, it is just replacing the basics for this.

Roy
Mar 3, 2019 at 5:47 AM
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MARK BOOTH
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Hello Roy,

New distributor not just cap, plugs, wires, computer, EGR valve, map sensor, MAF sensor, new throttle body, O2 sensor and a few others that I probably forgot.
Mar 3, 2019 at 6:00 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Wow, lots of parts with no results.

I would back up and start with checking the compression check.

https://www.2carpros.com/articles/how-to-test-engine-compression

Roy
Mar 3, 2019 at 6:09 AM
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MARK BOOTH
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Okay, will do. It will be a few days on that.

Thanks
Mar 3, 2019 at 6:11 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
You are welcome.

Keep us updated.

Always glad to help.

Roy
Mar 3, 2019 at 6:13 AM
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