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compression test..need to remove all spark plugs?

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Old Jul 24, 2011 | 07:31 PM
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smilecow's Avatar
smilecow
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compression test..need to remove all spark plugs?
I own a 2003 acura tl.

I want a compression test on the front cylinders only.

Do I still need to remove the spark plugs in rear?

thank you
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Old Jul 24, 2011 | 10:20 PM
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01tl4tl
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mind sharing why?

to answer- a good compression test requires the starter to turn the engine at good speed- a consistant speed-
so remove all the plugs AND hook up a battery charger during testing!!
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Old Jul 24, 2011 | 10:21 PM
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01tl4tl
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if looking for coolant traces - head gasket prob- water damage should be evident on the plugs-
or if gasket blown, coolant will shoot from spark plug hole
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Old Jul 25, 2011 | 01:26 AM
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they tested the compression at the Honda dealership when i bought my car... (brought it to them for a tech to inspect - got the older guy who races and builds cars) said it checked out...
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Old Jul 25, 2011 | 10:58 AM
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01tl4tl
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unless its been severely overheated the compression should be fine


for your purpose- pull the fronts and get a basic reading
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