View Full Version : 2005 STS SES Light with engine shake. "Misfire"?

11-01-10, 05:43 PM
Last week wife driving home stated engine started shaking violently. Since then the SES light blinks under load, gas milage is very low and I'm suspecting a misfire. Anyone have ideas as my dealer can't get the car in until next week. How hard is it to change the plugs and wires of a 2005 STS V6? I heard 2 of the plugs are below the intake is this true? Any ideas would be greatly appreciated.



11-01-10, 05:52 PM
Why guess? For the price of the ratchet you'd remove the plugs with, you could own a code reader (EVERYBODY should now own a code reader ;) )

Be sure to get one that is Not OBD-II Only, your car is Can-Bus. There is a stored code in your computer just Trying to tell you what the problem is....

11-01-10, 10:48 PM
Links to a good code reader?

11-02-10, 10:20 AM
I know nothing about this seller, but this is what I bought at Costco last year for $30. I also have a sophisticated laptop based scanner (AutoEnginuity) but often use this first because it's so quick to grab :)


It's only going to do generic engine codes but, really, that could be 80% of what you'll need anyway....

added -> eBay auction under "codekey" -> http://cgi.ebay.com/ebaymotors/CODEKEY-Car-Engine-Diagnostic-Tool-OBDII-CODE-READER-_W0QQcmdZViewItemQQhashZitem1c16b1d245QQitemZ12063 9836741QQptZMotorsQ5fAutomotiveQ5fTools