Compression test 2003 Ford Focus?


Old 01-15-11, 08:43 AM
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Compression test 2003 Ford Focus?

How would I do a compression test on a 2003 Ford Focus without the automatic transmission??
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Old 01-15-11, 09:51 AM
Join Date: Aug 2006
Location: santa fe /texas
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remove spark plug wires
use compressed air to blow dirt from around spark plugs
remove all spark plugs
disconnect ignition wire from coil
install compression gauge
hold throttle open
spin engine over / count 4 compression cycles
take reading from gauge-compare all cylinders
Old 01-15-11, 04:32 PM
ukrbyk's Avatar
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,302
except that if he has plugs deep in plug wells, he'll have to have special gauge long enough to go into them all the way. been there.

oh, and it's not rubber hose length. it has to be metal. i saw it once and can't find it anymore. guys say those are rentable though.

something like this:

Compression Test - Honda, Acura Tech Website, tutorials, tuning and HOW-TO's. Drag racing, street racing, road racing -

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