I'm not sure what the spec is on GM, but on Ford, they do not use the MAF for TCC lockup modulation. Ford also did not continue use of a MAP sensor. They are looking for TP voltage to drop below 1.2 volts or go above 3 volts or a high signal from the brake circuit. GM should be somewhat similar. This is a fairly common complaint on GM vehicles. Many times it turns out to be a problem with the TCC solenoid. To be sure, there is only one sure way to solve it, and that is diagnosis BEFORE throwing parts at it. A good live reading scan tool can be a good friend for this problem.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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