Ignition Switch / Starter Fuse keeps blowing.

FocusTroubles
175

Asked by Aug 14, 2010 at 06:59 PM about the 2002 Ford Focus

Question type: Maintenance & Repair

I own a 2002 Ford Focus, 2.0l SPI engine. 5-speed manual trans. Recently bought from a friend's parents, with nothing wrong with it other than the clutch. I cheated when replacing the clutch, and completely pulled the engine/transmission out of the compartment, and took it apart that way. Got everything back together as it should be, but a few weeks later, I had no power other than dome light, "anti-theft" light, and a few other odd "emergency" lights. Found the blown 30A fuse, replaced it, and it blew as soon as I turned the key over, with an audible "pop".

Any help or guides to find / fix the problem is highly appreciated.

(On a side note, I'm not the mechanic-type, I follow Hayne's / Chilton's religiously.)

8 Answers

sounds like you shorted out something in the wireing,if fuse blowes as soon as you put it in you got a bare wire aganist metalmcausing it to blow,all you can do is retrace all the wires.

8 out of 8 people think this is helpful.
bignick41501
130

ok well what if it takes maybe a day or so for it to blow again, or somtimes it blows as soon as you try to start it? see, i got a 2003 ford ranger and the 30amp "starter/ignition switch" fuse keeps blowing at random times. somtiems it seems its fine, somtimes shell just die. any ideas?

13 out of 13 people think this is helpful.

you got a short in the wireing harness someware,check grounds and check for bare wires,also you could have put a starter wire on the pos,side of starter,that goes to neg,small wire to neg post on starter.

8 out of 8 people think this is helpful.
FocusTroubles
175

I found out what it was. When I put the engine back in, my starter / negative cable was rubbing on what I hear is the EGR tube(?). As it heated up, it melted the wire, and caused an arc. Burned a hole straight through the tube.. and was causing my car to short out. For those of you with similar troubles, check out your wire routing.

12 out of 12 people think this is helpful.
Kewyn Gray
130

.

4 out of 4 people think this is helpful.
Kewyn Gray
130

FocusTroubles pointed me in the right direction about the idea. Come to find out, there are some wires near my battery, that go to the MAF, touching the hot egr pipe. The last thing i did was changed the Positive battery terminal the day before, and apparently, moved the wire loom near the egr pipe, making clearance for battery terminal, to the point where its as show in the picture where its on the pipe. My symptoms were, the car will drive normal, and out of no where, jerk sort of violently, "i guess if you're going real fast, it will be worse", and the ignition will cut out - engine shuts off while driving. When you turn the key, no lights on the dash will come on. Below the hood, my 30 amp Ignition fuse is blown.

9 out of 9 people think this is helpful.
CK64
20

Exactly the SAME thing that happened to Kewyn happened to me, I had my battery replaced at my 2001 Ford Focus and next day while driving from work my engine stopped 3 times for a second but then continue to run, and 20 minutes later just died in the middle of the road and wouldn't restart. No lights came on on the dash! First we thought it was the alternator, but when we checked the battery it was fully charged. So I had my fuses checked and the 30 amp ignition fuse was blown. Changed the fuse and it blew up again after driving for 30 min. We looked it up on the internet and found this site. Kewyn's post helped A LOT!! The wires touched that pipe on the left side of the battery and melted! Taped the wires and made sure they won't touch the pipe again and everything's fine! THANK YOU!!!

2 out of 2 people think this is helpful.
matthew0220
20

Ok I have a 2001 Ford escape. Every time I get in it in the morning I hear a "click" when I start it. It won't turn over. I pulled fuse #25 and put a new one in it and it started . I need help. It keeps blowing the fuse or won't even start

2 out of 2 people think this is helpful.

Your Answer

Add photo

Related Questions

Focus

Looking for a Used Focus in your area?

CarGurus has 66,451 nationwide Focus listings starting at $1,100.

ZIP:

Search Ford Focus Questions

Ford Focus Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,030
#2 dandyoun
dandyoun
Reputation 730
#3 FordNut
FordNut
Reputation 650
View All

Related Models For Sale

Used Honda Civic"
496 Great Deals out of 61,181 listings starting at $1,350
Used Ford Fiesta"
158 Great Deals out of 24,288 listings starting at $3,950
Used Toyota Corolla"
991 Great Deals out of 72,202 listings starting at $1,499
Used Ford Mustang"
305 Great Deals out of 42,689 listings starting at $1,999
Used Ford Escape"
1,148 Great Deals out of 94,971 listings starting at $1,399
Used Honda Accord"
663 Great Deals out of 75,371 listings starting at $1,400
Used Hyundai Elantra"
444 Great Deals out of 59,624 listings starting at $1,450
Used Toyota Camry"
1,121 Great Deals out of 77,645 listings starting at $700
Used Volkswagen Jetta"
402 Great Deals out of 28,849 listings starting at $1,000
Used Chevrolet Malibu"
649 Great Deals out of 53,865 listings starting at $500
Used Nissan Altima"
759 Great Deals out of 80,209 listings starting at $1,200

Used Cars For Sale

2016 Ford Focus For Sale
3 Great Deals out of 34,029 listings starting at $12,900
2015 Ford Focus For Sale
80 Great Deals out of 6,027 listings starting at $10,499
2014 Ford Focus For Sale
242 Great Deals out of 8,395 listings starting at $6,900
2013 Ford Focus For Sale
132 Great Deals out of 5,214 listings starting at $6,495
2012 Ford Focus For Sale
105 Great Deals out of 4,368 listings starting at $3,995