AboutDennis W Expertise I am a retired Ford master tech specializing in electrical, climate control, emissions, driveability, chassis, brakes, and any light repairs. Currently employed by an independent shop that appreciates my knowledge and abilities.
Cannot answer transmission or parts questions, these are not areas of my expertise.
Experience 32 years of auto repair, diagnosis, and emissions testing, in service staions, independent garages, and 20 years with Ford dealers.
Organizations National Street Rod Association (NSRA)
International Automotive Technicians Network (IATN)
www.blueovaltechs.com
IAMAW (retired)
National Street Rod Association
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Education/Credentials Riverside City College Automotive technology program
Ford Master Tech Certified Engine and Chassis Master (Over 500 hours)
ASE Certified in 7 categories
6 years training in Union 76 Pro-tech program
Awards and Honors 4-time Technician of the Year at Almaden Lincoln Mercury
Ford Master Tech
Union 76 Pro-tech Master tech
Question Why is my 2003 Expedition burning up PCM relays.
Answer I have not encountered this problem nor heard of it happening. You haven't given many details, like if you can get codes from the pcm, if it lasts a few days or a few onths before burning up. Is the relay actually melting or just failing? What tests or checks have been done, if any?
For a relay to fail from overheating something has to be causing this heat, like a short or failed component. I cannot tell you exactly what it might be without some handson testing.
