I have a 02 mercury sable. I have changed the battery twice and alternator twice in 2days. I smell plastic burning and now alt is back out. What could this be?

Chris Rollo

Asked by Jan 18, 2015 at 05:08 AM about the 2002 Mercury Sable GS

Question type: Maintenance & Repair

1 Answer


You obviously have a wiring problem someplace, most likely in the charging system, between the power supply, alt and battery. Especially since you smell burning plastic/rubber odor. Chipmunks and especially mice love to nest in vehicle engine compartments, especially during colder months because they like the engine warmth and the seclusion and they chew on wire insulation as well as pee in the nest areas which can corrode. It could also be a lose connection or a lose spot in the wiring harness that is allowing the wires to rub against metal, breaking the wire insulation and causing a make and break connection with the movements. Try tracing the lines before you replace the battery & alt again. Please advise me how you make out.

Your Answer

Add photo

Related Questions

Search Mercury Sable Questions

Mercury Sable Experts

#1 JP1956
Reputation 550
#2 Tom Demyan
Tom Demyan
Reputation 450
#3 Guy Outland
Guy Outland
Reputation 360
View All

Related Models For Sale

Used Ford Taurus"
346 Great Deals out of 23,091 listings starting at $1,400
Used Ford Mustang"
721 Great Deals out of 41,404 listings starting at $900
Used Mercury Grand Marquis"
46 Great Deals out of 2,562 listings starting at $1,300
Used Chevrolet Impala"
930 Great Deals out of 35,801 listings starting at $700
Used Mercury Mountaineer"
35 Great Deals out of 1,715 listings starting at $1,950
Used Honda Civic"
1,120 Great Deals out of 58,276 listings starting at $1,300
Used Ford F-150"
3,161 Great Deals out of 216,438 listings starting at $1,000
Used Honda Accord"
1,267 Great Deals out of 77,937 listings starting at $1,395
Used Lincoln Town Car"
50 Great Deals out of 2,391 listings starting at $1,542
Used Toyota Camry"
1,586 Great Deals out of 98,337 listings starting at $895
Used Chevrolet Camaro"
796 Great Deals out of 38,872 listings starting at $2,650