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The Isuzu 6H is a family of inline six-cylinder diesel engines installed in Isuzu medium-duty trucks, and also installed in GM medium-duty trucks as the Duramax LG4. It is mated to the Allison 2500, 3000, and 3500 series transmissions.
For example, 2010 EPA emissions requirements require full DEF coolant flow within 70 minutes. [18] [19] In Europe, Regulation (EC) No 692/2008 [20] specified in Annex XVI point 10 that DEF from a frozen tank at a core temperature of −15 °C (5 °F) must become available within 20 minutes when starting the engine at −15 °C (5 °F).
The L5P Duramax is the latest version of the Duramax V8 diesel engine.(engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm.
To compete with the Duramax and Cummins engines from GM and Ram, Ford increased output for the 2018 model year to 450 hp (336 kW) 935 lb⋅ft (1,268 N⋅m). Previously, the Duramax motor had a 5 hp (4 kW) gain over the Power Stroke in 2017, and the Cummins engine for 2018 would have had a 10 lb⋅ft (14 N⋅m) torque gain over the Power Stroke ...
GM replaced the DB-2 with the electronic throttle DS-4 in 1994–2000 vehicles. In mid-1996, GM implemented a redesigned engine cooling system incorporating twin non bypass-blocking thermostats and a 130-U.S.-gallon-per-minute (490-liter-per-minute) water pump. This improved the flow through the block by 70–75% and flow to the radiator 7%.
Cooling system regulation includes adjustable baffles in the air flow (sometimes called 'shutters' and commonly run by a pneumatic 'shutterstat'); a fan which operates either independently of the engine, such as an electric fan, or which has an adjustable clutch; and a thermostatic valve or a thermostat that can block the coolant flow when too ...
The Duramax I6 engine is a diesel engine available in select models of General Motors light-duty trucks and SUVs. Applications include the Chevrolet Silverado/GMC Sierra 1500 , Chevrolet Suburban/GMC Yukon XL , Chevrolet Tahoe/GMC Yukon , and Cadillac Escalade (both short wheelbase and ESV).
If coolant flow is restricted, heating capacity will be reduced or even lost altogether if the heater core becomes blocked. Control valves may also clog or get stuck. Where a blend door is used instead of a control valve as a method of controlling the air's heating amount, the door itself or its control mechanism can become stuck due to thermal ...
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