I went to replace plugs and could not remove. While online to see how can be removed (by way still won't budge) I read about serrvicing throttle throat. Used rubbing alcohol as recommended. Put assembly back together plus reattached plug wire
Now Service light is on have rough idle. Read owners manual said could be-bad gas-empty tank or fuel cap. Took off fuel cap, replaced and problem seemed to have gotten worse!
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Re: service Engine Soon
Make sure to check the firing order, that means every plug wire has to go to a specific spark plug, if you unplug all or more than one plug wire at same time, you might mix it, and that should be all your problem just get a firing order specifications and have it done.
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The Service Engine soon light indicates that something is likely wrong with your emissions system. It could be any number of things but it is OK to drive to a repair shop or parts shop to get the codes read. Some of these issues can cause damage if you don't get the vehicle repaired soon but you can drive it a little bit (you won't need to get it towed).
I would recommend an Autozone or Pep Boys to get the code read as it may be something as simple as replacing the gas cap.
Third cylinder back on the passenger side. I'd recommend changing all 8 coils and spark plugs. These coils don't last long, and once one goes, more will fail soon after. This job also requires removing the fuel rail to gain access to the coil and plugs. I personally have the same SUV and went through the same issue!!
you need to use an OBDII scan tool that will read any "error" codes and give you the system that will be causing the check engine light to come on. this tool will also allow you to erase the code after you have read it. write the code down as you may have to pinpoint exactly what part may have failed and needs replacing. something as simple as a loose gas cap will cause the check engine light to come on. it could be any of a dozen different emission or ignition sensors that may be bad depending on the error code. all 1996 and newer vehicles sold in the US will have the OBDII system and standard diagnostic/data link connector,which is usually under the driver side of the dash, to plug the scan tool into to read the DTC's(diagnostic trouble codes).
It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt. RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs! Good Luck