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Old 03-15-2013, 10:07 PM
MadMav MadMav is offline
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Join Date: Mar 2013
Posts: 6
Default Re: Rough idle trouble. Any hints?

Originally Posted by Bendjak05 View Post
Did you check codes again?. Still just says misfire?


Im thinking injectors too
Yep, still #5 cylinder misfire.



Originally Posted by rangerlocal View Post
Do a compression test on the misfire cylinder before tearing everything apart. You may be glad you did. Harbor freight has them for about $12, Advance Auto has them for $20. I have the Advance one and it works great. You only need three things for combustion: Spark, gas, and compression. You can use a spark tester, timing light, or hold the plug close to the engine block while cranking to see if it sparks. If it does, check compression. If compression is significantly lower or non-existent on that cylinder, examine the spark plug and start looking for head gaskets. Also, smell the plug and see if it smells like gas. If you're not getting combustion but getting fuel, you'll definitely smell it when you pull it out. Keep us posted.
I will get a compression checker. Thanks for the tip.



Originally Posted by thatranger View Post
If its an auto tranny, then it shouldn't rev pass 3k I believe (maybe its 3.5k) when in Neutral or Park.
It wont do it in gear on the road.

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no power, rough idle, slow

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