Hi there.I'm asking anyone who can help.I'm not sure if this is a common problem but I know someone else with a very similar problem.Problem is truck run great cool,but once it warms up when I come to a ferm stop the glow plugs will cycle and the ses light will come on.Once I get going again the ses goes off.Down the highway the ses will sometimes come on causing the torque to unlock then it will shut off torque will relock about 4-6 times then it seem to be okay.I have a 1992 chevy ext.cab 4*4 short box automatic.My buddy has a same truck except it's a longbox and standard,so he does get the torque problems but his ses will go on sometimes down the road & he has the same problem in town with the glow plugs.Open to suggestions.