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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 1 FIGURE 23–1 If the thermostat has a jiggle valve, it should be placed toward the top to allow air to escape. If a thermostat were to become stuck open or open too soon, this can set a diagnostic trouble code P0128 (coolant temperature below thermostat regulating temperature).
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 2 FIGURE 23–2 Use caution if using a steel scraper to remove a gasket from aluminum parts. It is best to use a wood or plastic scraper.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 3 FIGURE 23–3 An intake manifold gasket that failed and allowed coolant to be drawn into the cylinder(s).
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 4 FIGURE 23–4 The lower intake manifold attaches to the cylinder heads.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 5 FIGURE 23–5 The upper intake manifold, often called a plenum, attaches to the lower intake manifold.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 6 FIGURE 23–6 Many aftermarket replacement intake manifolds have a different appearance from the original manifold.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 7 FIGURE 23–7 A single overhead camshaft engine with a timing belt that also rotates the water pump.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 8 FIGURE 23–8 A Toyota/Lexus hybrid electric vehicle has a ready light. If the ready light is on, the engine can start at anytime without warning.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 9 FIGURE 23–9 Always use the viscosity of oil as specified on the oil fill cap.
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 10 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 11 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 12 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 13 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 14
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 15 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 16 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 17 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 18 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 19 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 20 VALVE ADJUSTMENT
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Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River, NJ 07458 All rights reserved. 21 VALVE ADJUSTMENT
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