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Car Forum / GMC Cars / July 2006

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Shaking engine

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blutear2002 - 05 Jul 2006 23:20 GMT
Hi, I have a 1990 olds ciera, the engine is shaking like its missing. The
coil pack has been completely changed so has the plugs and wires, does anyone
have any sugestions?
Shep - 05 Jul 2006 23:52 GMT
Make sure the wires go to the proper plugs, vague info here, did it do it
before, is this is miss, any vacuum hoses or pcv popped off, what engine?
> Hi, I have a 1990 olds ciera, the engine is shaking like its missing. The
> coil pack has been completely changed so has the plugs and wires, does
> anyone
> have any sugestions?
HLS@nospam.nix - 06 Jul 2006 00:02 GMT
> Make sure the wires go to the proper plugs, vague info here, did it do it
> before, is this is miss, any vacuum hoses or pcv popped off, what engine?
> > Hi, I have a 1990 olds ciera, the engine is shaking like its missing. The
> > coil pack has been completely changed so has the plugs and wires, does
> > anyone
> > have any sugestions?

As Shep said, be sure your ignition system is working correctly first.
Have you also changed the ignition control module? (I think this model has
one)

If ignition is okay, you can start looking at the condition of the valves,
the condition
of the fuel injectors, etc.

There are so many things that can cause this.
blutear2002 - 06 Jul 2006 12:10 GMT
It has missed since it was bought 2 wks ago, plug wires are on right,its a
3300 eng. I ll have someone check the pcv valve and vacuum hoses. ty

>> Make sure the wires go to the proper plugs, vague info here, did it do it
>> before, is this is miss, any vacuum hoses or pcv popped off, what engine?
[quoted text clipped - 12 lines]
>
>There are so many things that can cause this.
blutear2002 - 06 Jul 2006 12:16 GMT
>> Make sure the wires go to the proper plugs, vague info here, did it do it
>> before, is this is miss, any vacuum hoses or pcv popped off, what engine?
[quoted text clipped - 12 lines]
>
>There are so many things that can cause this.
If the module is with the coil pack which I think it is it was changed. It
has even been scanned and isnt showing anything. TY I really appreciate your
help.
 
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