20 Most Recent 2006 Chevrolet Colorado - Page 6 Questions & Answers

have your battery cell drop tested to see if any of the cells are weak as it mite need replacing !

Sounds like the BCM is either defective or needs reprogramming. Since you are combining 3 trucks, were all working well before they became parts vehicles? In a collision, the electric wiring to the BCM may have been smashed and with "crossed" wires may have been erased or shorted.You would swap BCM's and use the driveable one to get to the Dealer for reprogramming or Autozone, Advace, or Oreilys for a free scan.

put gas line antifreeze.

It is located at the rear of engine down low on drivers side

Depends on the problem. It could be coolant leaking into the engine oil, or a vent problem, or the engine may not be reaching normal operating temp and getting rid of the moisture inside the engine.