2008 Ford Mustang GT electrical issues

Asked by MustangGtguy Jul 27, 2019 at 05:54 PM about the 2008 Ford Mustang GT Coupe RWD

Question type: Maintenance & Repair

I have an 08 Mustang GT V8 and it has killed
my battery recently. I did a current draw test
with a new battery and when I pulled fuse
number 40 under the hood, the current
dropped from 1.6 amps to just .13 amps. I
am trying to figure out what fuse 40 does. A
diagram online says it’s Engine #2 but I don’t
understand what the hell that means or
what’s controlled by that fuse. Does anyone
know what that fuse does? What’s on that
circuit? I can’t find anything online to figure
out what it is or does.

1 Answer

It controls the cooling fan circuit and the mass air flow sensor I believe. I'm having troubles with the fuse 40 blowing and cannot find why.

Your Answer:

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    3,160
  • #2
    Bob Beaman
    Reputation
    2,690
  • #3
    rst429
    Reputation
    2,660
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Corvette
26 Great Deals out of 1,077 listings starting at $15,000
Used Dodge Charger
40 Great Deals out of 725 listings starting at $5,995
Used Dodge Challenger
28 Great Deals out of 449 listings starting at $7,999
Used Ford F-150
321 Great Deals out of 13,618 listings starting at $1,712
Used Ford Mustang Shelby GT500
3 Great Deals out of 34 listings starting at $49,995
Used BMW 3 Series
79 Great Deals out of 1,230 listings starting at $2,500
Used Chevrolet Silverado 1500
197 Great Deals out of 5,920 listings starting at $2,975
Used BMW M3
3 Great Deals out of 83 listings starting at $15,995
Used Lexus IS
18 Great Deals out of 312 listings starting at $6,500
Used Honda Civic
198 Great Deals out of 4,044 listings starting at $1,900
Used Toyota Camry
64 Great Deals out of 1,069 listings starting at $3,995

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. Content will be removed if CarGurus becomes aware that it violates our policies.