PointedThree - Photo DIY- Engine Compression Check

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PointedThree : Sedan Forums : W140 S Class : Photo DIY- Engine Compression Check

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Photo DIY- Engine Compression Check

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Posted 6/7/2009 5:22 PM

G-AMG
G-Class DIY Host

Date registered: May 2006
Location: South Texas
Vehicle(s): '04 G55, '80 280GE, '99 S420, '98 E320, 2011 E350
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Photo DIY- Engine Compression Check

Greets,

Since it was time for me to change the Spark Plugs, I normally like to do a Compression Check, just to keep a record of the internal "Health" of my engines...

The write-up is from the WIS, which I was Shocked to see there was NO bypassing of any of the fuel relays, like most tutorials. Since my engine had no rear CPS in the location shown in the WIS, I went to the front sensors and unplugged them to keep the engine electrical system off-line.

Please note, DON'T push the Gas Pedal to Full Throttle like most Compression checks.. and place transmission in Neutral while cranking using the CAR KEY, rather than the Hand Starter like my other vehicles....

I hope this encourages someone to also keep up on their car's "Wellness" Check-Up...