Question about 1993 Buick LeSabre
Just picked up a FREE 93 Buick LeSabre and of course it has issues. The main one is that while driving it to my house it would not go faster than 35 mph. The engine is revving up a lot, just won't switch to a higher gear. I tried shifting it from O-drive to drive and 2nd and 1st... no change. Any idea on the cause??? I am going to change out all of the fluids soon, but want to know if there is anything else I should be looking at in the meantime.
May or may not help but the modulator valve controls alot of the shift aspects of the 4t60 transmission you have. id try to replace that its about 15 to 20 dollars and a simple bolt on
Posted on Feb 21, 2009
The first thing to do is run a OBD 1 self test for trouble codes, this could be a defective VSS as well, but that should set a trouble code.
Posted on Oct 31, 2008
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