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shari

shari 5/15/2012

2003 Chevrolet S10 LS 6 Cyl 4.30L

Engine

i have a 03 s10 rough and under hard acceleration start shaking and skipping check engine light flashes

changed plugs wires distributer cap rotor and fuel filter no difference code comes up as misfire cylinder3 started happening daily used to happen on steep hill hade intake gaskets changed 3000 miles ago truck has 122000miles

2 Answers


Jimm

Jimm 5/15/2012

Too many possibilities for the rough running engine - there are too many other potential causes to list or even consider without additional diagnosis.
First step,have the check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA.Then, post your reply with the specific fault code for further assistance.

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Jimm

shari 5/15/2012

forgot to say i did it came back misfire cyl 3 only

Jimm

shari 5/15/2012

had code checked came back misfire cyl 3

Jimm

Jimm 5/18/2012

What is the specific fault code displayed? Several possiblities for the misfire; fouled spark plug, faulty plug wire, faulty coil, poor cylinder compression, worn valves or valve guides on cylinder # 3.
Need more information to help with the problem you are having.

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Jimm

shari 5/20/2012

changed all plugs looked good no difference with them changed wires cap rotor fuel filter had intake gaskets changed they were leaking 3000 miles ago do have a vacuum line thats plugged not sure where it goes

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