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Help with cruise rpms

cameron92

cameron92

Grand Pricks
I've just recently noticed that when I am cruising around 100km/h (60mph) my rpm's jump up and down between 1500 and 1000.

I have a video that I will post when I get home from work.

Any ideas as to what would be causing this?

I have cleaned my MAF, IAT and throttle body, but no difference.
No CEL.

Please help,
Thanks
 


Lockup is probably more. Although the osciallation could be the issue.

When was the car's last tune of up spark plugs and wires?
 
BillBoost37 said:
Lockup is probably more. Although the osciallation could be the issue.

When was the car's last tune of up spark plugs and wires?
Click to expand...

I just put new ngk wires on and plugs were done in may 2011.
When I changed the wires I noticed one of the coil pack connections was kind of rusted, and I forgot to wire brush it off, I'm going to try that tonight and see if I notice a change.
 




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