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07 Oct
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17
A diesel truck can have a tuner, monitor, diagnostic device, or a combination of several functions connected through the same diagnostic port. From the driver’s seat, those electronics may look similar. A touchscreen can show engine data, retrieve a..
23 Sep
-900x900w-335x200h.webp "Allison TCM Problems: Symptoms and Replacement Planning")
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69
A Duramax can suddenly start acting like the Allison transmission itself has failed even when the problem may be in the electronics controlling it. The gear indicator may disappear, the truck may slam into Drive or Reverse, a warning message can sho..
16 Sep
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81
A Ram 6.7L Cummins that tows every week does not need the same transmission setup as a lightly used stock truck, and a truck with added fuel and air does not put the same demands on the 68RFE as one that has stayed close to factory power. That is wh..
09 Sep
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288
A Ram 6.7L Cummins can keep driving for a while even when the 68RFE is starting to act differently. Maybe Drive takes a little longer to engage. One shift starts feeling softer or harder than the rest. The truck goes into limp mode, runs hotter than..
02 Sep
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92
A diesel truck can feel completely normal during an empty commute and then change as soon as a trailer is connected, the road turns uphill, or the throttle stays open longer than usual. The engine may rev during a shift without a matching increase i..
26 Aug
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127
A diesel engine rebuild can fail before the first startup if the project begins with the wrong parts, incomplete measurements, missing tools, poor contamination control, or an unresolved failure cause. The most common diesel engine rebuild mistakes ..
19 Aug
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148
A diesel engine rebuild often begins with a simple question: how much will the project cost? The useful answer is rarely one fixed number. The final scope depends on what the engine needs after teardown, which components remain serviceable, how much..
12 Aug
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164
A diesel engine can continue running while internal wear is becoming more serious. The first clues may be easy to dismiss: more crankcase vapor, extra oil use, a harder cold start, or a new sound under load. When several changes begin appearing toge..
05 Aug
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183
A diesel truck can run reliably for years and then develop a problem serious enough to force a major decision. An overheating event, lubrication failure, internal knock, damaged cylinder, or loss of compression may leave the owner choosing between r..
22 Jul
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280
A diesel truck may spend most of its life starting easily, towing reliably, and maintaining strong fuel pressure. That record can make the fuel system feel maintenance-free until one contaminated tank, restricted filter, electrical problem, or high-..
15 Jul
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265
A diesel truck rarely schedules its breakdown at a convenient time. It may start normally in the driveway, idle smoothly through warmup, and then hesitate while merging with traffic or pulling a trailer uphill. The problem may disappear after a rest..
08 Jul
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277
A diesel truck can pull normally for months and then develop a serious fuel system problem during an ordinary workday. The engine may be climbing a grade with a loaded trailer when rail pressure suddenly drops, power disappears, and the truck enters..