I have a 2004 Chevy Venture that I had a complete front brake job done.  After being on the highway for about 5 mins & at 60-65 mph the front end starts shaking.  I thought I had a bad tire & went to the tire store and the rt front wheel couldn't be spun by hand & was told it was the caliper.  I went to the shop that I've used for years & had the caliper & brake hose replaced.  It was only a couple of mos that it started again & I went to drop my van off & 1 of the mechanics couldn't even touch the wheel because it had gotten so hot in the 4 miles from my house.  I brought it back home & parked it until I had saved enough to buy the parts & pay for labor which was almost $700.

I had the brakes, pads, calipers & brake hoses replaced.  One day this week I got on the hwy & it started shaking again but not as bad.  When I put my foot on the brake pedal it makes a noise & shakes more.

I'm wondering if you have any idea of what it could be.  Last summer I was using a little vacuum that my son has in his car & I think it blew the fuse for the port after running for a couple of mins.  I'm thinking the port for the OBD scanner plugs in is on the same circuit no longer works.  I took my camera down since it's basically useless until I can get the fuse checked.

The check engine light was on before that happened & I know the code that Auto Zone showed me is for 1 of the oxygen sensors (S1 Bank 1).  I had to replace 1 of the sensors 6 or 7 years ago & I'm planning on buying both sensors since they won't be able to check codes.

So you have any suggestions of what can be checked on the front end?  It may be 20 years old & have just over 195,000 miles on it.  It runs great, the heat & air both work great.  Ventures are notorious for blowing bulbs, I had to replace 1 of the daytime running light bulbs again yesterday.