How to remove the back plug on 2006 hyundai tuscon 2.7

2006 tuscon
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They are only held in by rubber grommets as you can see by the ones you removed.you will have to carefully pry them up with a screw driver or similar.

As there are problems associated with removing a battery ( lost radio codes and CPU program corruption) i would seriously suggest that you have a battery shop do this as they have a plug in battery that retains all codes while the battery is out.

5 quarts

But it started and ran fine before this? If YES, then the answer's patently obvious eh? The belt was put on incorrectly, or more accurately, the timing has been set up wrongly. Sadly it seems you'll need to get someone to check the timing and get it reset properly. Best of luck!

remove upper intake plenum to access back plugs.

Go to http://pdfservicemanual.com/automotive/2008-hyundai-tucson-ix35-owners-manual
Should download as a pdf....
Let me know if this worked.

Hi,
There are so many sensors and crud on cars these days, it's difficult to troubleshoot when problems occur. If your engine light is coming on, have Autozone hook up an OBD 2 tool and try to pinpoint which sensor is giving you a problem.
On another thought, get some gas additive and pour in your tank. Sometimes you can pump crud into your tank at the gas pump, when a big truck just delivers fuel to the stations underground tanks. This stirs up condensation and crud from the storage tanks and gets pumped right into yours. It's a cheap thing to try anyways...
Hope this helps... Good luck.

yes they can be just pushed in