My throttle linkage is sticking a bit and setting off ASR sometimes. It is the shaft under the manifold that I can not get to to undo clean, lubricate and put back. I was just able to drip lubricant on the outside and move the throttle back and forth until it got better. It looks to me that the intake manifold needs removal to get to this. Has anyone come up with a slick way to service this shaft?