battery cables, alternator, or PCM?

10

Asked by Sep 25, 2014 at 03:59 PM about the 2001 Ford Focus SE

Question type: Maintenance & Repair

2001 automatic Ford Focus problem! Randomly when I am driving at either high or low
speeds my car will all of the sudden jolt and lose acceleration as if it shifted into neutral.
It only lasts for a second or two and only does this when the "multifunction" light turns
on. Sometimes it will stop completely and I will have to restart it at a red light. It will do it
for days at a time and then nothing for weeks. It just started doing it again! What could
this be? Also, my battery light is constantly coming on and off.  And today my car
overheated!

6 Answers

7,655

check fluids

10

fluids are good

64,395

Load test battery to rule it out,then have alternator checked,sound,s like alternator is working randomly,this would cause light to come on,and it would confuse the PCM,and make car run this way,including over heating issue,fan,s not running properly,because of low voltage,and as crumbob said check fluid in radiator and tranny.

7,655

also check continuity of wire from battery pos side to alternator

10

My alternator is slightly over charging at 14.6 but I don't think thats too bad. I was told today that it was my PCM but I don't know...

1 of 1 people found this helpful.
64,395

It is hard to diagnose a pcm without hooking it up to computer,if it was a pro,that diagnosed this as it being the pcm,then i would agree,but have it checked,it can be scanned to prove it is bad.

Your Answer

Add photo

Related Questions

  • 2003 focus, ztec. PCM draw 4 answers

    2003 focus, ztec. new alt. new batt. parasitic draw when the pcm fuse in place. draw goes away when the fuse is removed. tried 'soaking', unplugged all relays and fuses, draw still there. removed gem ...

    2003 Ford Focus ZX5

    -

    Maintenance & Repair

  • 2002 ford focus charging problem 2 answers

    I have a 2002 ford focus with 84k on it. Battery is 6 months old, and testing good. I have installed 2 alternators in the last week and replaced the battery cables. Still not getting good voltage, i...

    2002 Ford Focus

    -

    Maintenance & Repair

  • 2001 Ford Focus ZX3 hard start and stall problem. 23 answers

    I seem to be coming across a hard start and stalling problem with my Focus. It is difficult to start, meaning it just won't grab or turn over when I go to start it. When it does, it has a hard time st...

    2001 Ford Focus ZX3

    -

    Maintenance & Repair

  • What is the PCM on a ford focus 2005 1 answer

    what is a PCM I saw this while reading the vehicles manual , it was used to identify a diode in the power distribution box in the engine compartment

    2005 Ford Focus ZXW SES Wagon

    -

    Maintenance & Repair

  • truck starts missing when i take battery cable off 10 answers

    truck starts missing when i take positive battery cable off

    1986 Ford Ranger STD Extended Cab SB

    -

    Maintenance & Repair

Focus

Looking for a Used Focus in your area?

CarGurus has 57,171 nationwide Focus listings starting at $1,095.

ZIP:

Search Ford Focus Questions

Ford Focus Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,340
#2 dandyoun
dandyoun
Reputation 1,060
#3 Su'ad Barakat
Su'ad Barakat
Reputation 910
View All

Related Models For Sale

Used Honda Civic
657 Great Deals out of 88,603 listings starting at $995
Used Ford Fiesta
139 Great Deals out of 17,040 listings starting at $3,095
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Toyota Corolla
784 Great Deals out of 73,831 listings starting at $1,995
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050
Used Ford Escape
1,394 Great Deals out of 93,563 listings starting at $1,250
Used Hyundai Elantra
575 Great Deals out of 52,575 listings starting at $1,499
Used Toyota Camry
999 Great Deals out of 90,916 listings starting at $650
Used Volkswagen GTI
70 Great Deals out of 6,965 listings starting at $1,995
Used Nissan Altima
1,027 Great Deals out of 81,562 listings starting at $1,200
Used Volkswagen Jetta
446 Great Deals out of 40,941 listings starting at $950

Used Cars For Sale

2017 Ford Focus SE For Sale
10,077 listings starting at $9,710
2016 Ford Focus SE For Sale
50 Great Deals out of 2,623 listings starting at $9,333
2015 Ford Focus SE For Sale
55 Great Deals out of 2,536 listings starting at $7,995
2014 Ford Focus SE For Sale
87 Great Deals out of 3,940 listings starting at $5,995
2013 Ford Focus SE For Sale
23 Great Deals out of 1,378 listings starting at $5,488

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.