I have a 2000 Ford Taurus flex fuel vehicle ,installed new alternator and it still won't charge also instrument cluster not working,have checked ground strap to motor,three ground wires to ECM plug

Asked by Mar 16, 2015 at 03:29 PM about the Ford Taurus

Question type: Maintenance & Repair

Have checked alternator fuse and it
is good,thinking ECM is bad,but if I
buy ECM and pay to have it flashed
cannot return any ideas would be
appreciated

4 Answers

11,540

charge the battery fully and have it load tested. if all fine hook up a multimeter set on volts dc to the battery while the engine is running. you should have 14+ volts if not then your new alternator is bad. happens a lot with aftermarket alternators. if you have to replace it, go OEM.

2nd alternator had both tested and they show good,not getting 14+,only have battery voltage,getting signals to voltage regulator,according to schematic it goes back through voltage light in display,tried different display,no difference

Also grounds for both trace back to ECM

11,540

If you are only getting battery voltage, then they aren't good. There is one thing to check though and you might have to call a ford dealer service depth for confirmation. On some vehicles voltage regulation takes place in the pcm, not the alternator although I think that might be more common on dodges.

Your Answer

Add photo

Related Questions

Taurus

Looking for a Used Taurus in your area?

CarGurus has 18,913 nationwide Taurus listings starting at $1,499.

ZIP:

Search Ford Taurus Questions

Ford Taurus Experts

#1 Tom Demyan
Tom Demyan
Reputation 4,020
#2 dandyoun
dandyoun
Reputation 1,970
#3 lightGear
lightGear
Reputation 1,940
View All

Related Models For Sale

Used Ford Fusion
1,257 Great Deals out of 76,321 listings starting at $1,500
Used Chevrolet Impala
575 Great Deals out of 35,566 listings starting at $899
Used Dodge Charger
523 Great Deals out of 28,644 listings starting at $2,500
Used Ford Explorer
891 Great Deals out of 64,217 listings starting at $799
Used Ford Mustang
683 Great Deals out of 44,709 listings starting at $1,500
Used Ford F-150
2,127 Great Deals out of 193,349 listings starting at $290
Used Chevrolet Malibu
1,157 Great Deals out of 79,585 listings starting at $2,500
Used Chrysler 300
389 Great Deals out of 18,081 listings starting at $1,000
Used Honda Accord
1,043 Great Deals out of 67,784 listings starting at $1,000
Used Toyota Camry
1,200 Great Deals out of 83,788 listings starting at $750
Used Ford Focus
801 Great Deals out of 54,537 listings starting at $1,200
Used Ford Edge
796 Great Deals out of 47,737 listings starting at $2,990
Used Nissan Maxima
336 Great Deals out of 24,260 listings starting at $1,999
Used Ford Escape
1,283 Great Deals out of 84,686 listings starting at $950
Used Nissan Altima
1,260 Great Deals out of 75,202 listings starting at $1,695

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.