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2007 chevy 1500 4.3 6 cylinder Rough Idle under power


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ricstpete2959
New User

Dec 11, 2011, 9:53 PM

Post #1 of 4 (2071 views)
post icon 2007 chevy 1500 4.3 6 cylinder Rough Idle under power Sign In

my chevy truck has a rough idle under power as I accelerate to speed it smooth's out. changed all the plugs wires and dist. cap and rotor and air filter still did not fix problem engine light stays on solid at idle but flashes when i drive it. any Ideas?


(This post was edited by ricstpete2959 on Dec 11, 2011, 10:09 PM)


Mr.scotty
Enthusiast
Mr.scotty profile image

Dec 11, 2011, 10:49 PM

Post #2 of 4 (2052 views)
Re: 2007 chevy 1500 4.3 6 cylinder Rough Idle under power Sign In

First thing is to get the code(s) read, most autoparts stores can do it for free.
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Your only as good as your tools!


ricstpete2959
New User

Dec 11, 2011, 10:57 PM

Post #3 of 4 (2048 views)
Re: 2007 chevy 1500 4.3 6 cylinder Rough Idle under power Sign In

Yea I did That and the auto parts guy said it was cylinder 5. or cat converter is there a way to check the cat. or think its the O2 sensors the cat. is 700 bucks


zmame
Veteran / Moderator
zmame profile image

Dec 12, 2011, 5:58 PM

Post #4 of 4 (2024 views)
Re: 2007 chevy 1500 4.3 6 cylinder Rough Idle under power Sign In

this is another sign of that your converter is plugged which is why your getting efficiency codes. Get a back pressure tester if you want to be %100 sure.






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