99 Dodge Van 1500, Speedo and oil problems.

This van has around 60000 miles on it. It recently has been consuming large amounts of oil (6 qts. 1400 miles) It is not lacking power and if it is burning the oil there is not blue coming from the exhaust.

Also, on a road trip all at once the speedo went out, abs and check engine lights came on, cruise control stopped working. Replaced speed sensor but still having the same problem.

Open to any and all suggestions!

Dallas.

You probably have a leaking plenum gasket. Here's the TSB regarding it.
http://dodgeram.info/tsb/2000/09-05-00.htm