Question about 1996 Chevrolet S-10 Pickup

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Had diagnostiques test saying was missing on #2 cyl # 6 cyl changed plugs @ wires@ cap@ rotor still missing on same cyls after u get your rpms up it fires on all 6 cyl drove it with code scanner hooked up mechanic seems to think there is a carbon build up on the valve if So what to do instead of taking heads off and redoing them mechanic a 3 step cleaner for injection and intake and tank do u advise using it

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WELL ITS GOT TO BE ONE OF THE FOLLOWING,FUEL,SPARK,COMPRESSION OR TIMING. I VOTE FOR CROSSED PLUG WIRES ON 2&6

Posted on Dec 31, 2010

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If its a 4.3 l I'd suspect the intake manifold gaskets. They sag and cause vacuum leaks internally. If there's any coolant around the valley you need to change them anyway.

Posted on Dec 31, 2010

  • robert jardine Dec 31, 2010

    Do not loose any coolant or oil it just started going it reset the codes and does it random kinda thought mite be something like that thanks

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Firing order for a 1999 nisson quest van


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It runs rough sometimes it dies, I have tuned it up , plugs dist cap, wires rotor the computer , It has very poor gas milage .it has a 2300 with automatic trans,


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Apr 09, 2011 | Ford Ranger Cars & Trucks

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What would you include with a tune up for replacement parts? I was quoted about $400.00 for the tune up sounds high for plugs, wires, cap&rotor.


yes it is high.
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'86 honda accord 4 cyl...runs very rough as though missing on 1 cyl ...when removing plug wires 1 at a time each 1 removed makes engine run worse except for #1 cyl which when removed smooths engine out...


no, the plug is firing. But the timing is off. the plug is firing quite a bit before top dead center on that cylinder. The burning of the fuel mixture is occurring while that piston is on its way up and is slowing it down---dragging down the whole engine. i think you should change the distributor cap and rotor as cylinder one is firing at the same time as cylinder 2or 4. This indicates a possible carbon track in the distributor cap.

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I have a 04 ford taurus with a 3.0u motor has random misfire on cyl 5 & 6 have changed plugs and wires and have checked spark on all cylinders runs rughf at low speeds and idols up and down from 700 to...


1st how do you know the miss is on cyl 5 & 6? did you take the lead off and see if the miss was still there?
check all vacuum hoses and cables

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1 Answer

Changed plugs and plug wires and now it wont start? i checked for spark off the distributer all 6 were good?


if your engine run before you changed anything,and you are talking about a 3.0 engine,
you have to be careful changing wires on this engine,
you need toonly change one wire at a time,the distributor cap on this engine is just stupid.
if you look under the cap you'll see that a wire on the one side of the cap actually has a contact that leads to the other side of the cap.
cly 5 cyl 6
cyl 3 cyl 4
cyl 1 cyl 2
front of engine

if your looking at distributor cap from front of engine,
two screws hold down cap.
look at the screw closest to the front,from that screw second hole to the left is #1.
firing order is 123456
#2 wire will be at that front screw on cap,keep installing wires counter clockwise.

Dec 07, 2009 | 1996 Chrysler LHS

1 Answer

Missfiring ford


maybe you replaced them wrong

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