Carman Klaber, Author at Transmission Digest
Solving a 4L60E acceleration shudder puzzle

Today’s story concerns a 2007 Chevrolet pickup with a 5.3L V8 engine paired with a 4L60E transmission. The customer reported a slight shudder during acceleration, one that was particularly noticeable when merging onto the highway. Grabbing the work order and my trusty Snap-on scanner, I headed out to diagnose the issue. “This shouldn’t be too

Putting what you learn in training into practice

We all have those family members and loved ones who need our help and expertise when it comes to cars, and I am no exception. I purchased a 2001 Honda CRV AWD with a possibly bad transmission for my daughter to replace the worn-out vehicle she was driving. After determining that the transmission was indeed

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Two Unique Situations, Two Happy Customers

All of our initial diagnostic evaluations include a battery and charging system test. I’ll bet you can guess the outcome of this one; the battery failed, but the alternator had passed. At this point we informed the customer that some electrical testing was going to be necessary in order for us to find out what was causing the problem. The customer agreed to that and we then proceeded with the job.

Basic Test Solves Intermittent Issue

Those of us who worked on vehicles that predated mandated catalytic converters and gas shortages can remember a wonderful time when even the most-complex electrical systems could be diagnosed with a simple test light. Computers were just starting to transform from behemoths that took up entire rooms in buildings to something that could actually fit on your desk. And there were only four wires connected to the transmission. Yes, youngsters, I said four. Those were the days.

It’s not just the Transmission

Recently a customer called to get a quote for a 1998 Ford F-150 4X4 with the 4.6-liter V-8 engine and 4R70W transmission. The price was given and we had one in stock. A couple of days later they called and told us they needed the transmission. It was still in stock, but it was late in the day so we made arrangements to deliver it to them the next day.