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Thread: 2002 ford focus won't start? Crank angle sensor or upstream oxygen sensor? Reply to Thread
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Topic Review (Newest First)
12-20-2013 12:29 PM
zandress I'm having a similar problem, I have a 2002 zx3. Ran fine yesterday until I went to turn it on to go somewhere in the evening and it wouldn't get a spark to turn on. My dad and I looked at everything to see if anything was unplugged or broken and found nothing. We thought it might have been the ignition coil so we bought a new OEM one and installed it and tested it out. Still, the spark plugs didn't seem to be getting a spark. We laid them out on the valve cover and saw no spark, but as I just read putting them on the valve cover wont work. I'll go put them on a grounded section and try again. Any ideas on what it may be?
01-25-2013 10:59 PM
sailor
Seem to be getting?

Quote:
Originally Posted by Lovelyvanity View Post
Throttle was perfect after. Here's a pic of how #4 on the coil pack looked. Changed the coil pack crank position sensor checked timing changed plugs. Engine still first seem to be getting spark.
"Seem to be" is a red flag for me, it's something that needs to be tested to a firm conclusion, yes or no.

There are tools to test for spark, yet the simplest is to take the plugs out then connect them to their wires & lay them on a grounded metal surface & crank the engine (helper needed) so you can look for the spark at the plugs.

The valve cover is NOT grounded (supported by rubber gaskets) so find another handy spot!

Jumper cables are great for this, though car size are a bit unwieldy....

Cheers!
01-25-2013 10:33 PM
Lovelyvanity
Quote:
Originally Posted by sailor View Post
Let's ask the obvious question,

IS the gas pedal working properly now?

Moving the throttle body pulley properly?

(i always start with the "stupid" questions....)

Luck!
Throttle was perfect after. Here's a pic of how #4 on the coil pack looked. Changed the coil pack crank position sensor checked timing changed plugs. Engine still first seem to be getting spark.
01-25-2013 08:37 PM
sailor Let's ask the obvious question,

IS the gas pedal working properly now?

Moving the throttle body pulley properly?

(i always start with the "stupid" questions....)

Luck!
01-25-2013 07:59 PM
whynotthinkwhynot I don't think that would prevent the gas pedal from going down, but yeah, it seems bad.
01-25-2013 07:31 PM
Lovelyvanity Took the coil pack off.. Cracked all to hell. Just got a new coil pack and plugs
01-25-2013 11:26 AM
Codreamn With what you said i would not start throwing parts at it, especially O2 sensors. There are ways to check or have checked things that will eliminate the guess work. A compression test would be something i would start with like Tom said, just because the nature of that engine.
01-25-2013 12:13 AM
Lovelyvanity
Quote:
Originally Posted by Codreamn View Post
Did it make any kind of noise before it died?
None at all it didn't even shut off till I did. It was like all of a sudden the gas pedal didn't want to go down.
01-24-2013 11:24 PM
1turbofocus You have the Focus SPI engine before you do anything do a compression test there very bad to drop the valve seats and loose compression

Tom
01-24-2013 07:03 PM
Codreamn Did it make any kind of noise before it died?
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