Question about GMC Sonoma
I need to know the pounds of torque for the head bolts on a 2003 GMC Sonoma please
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Posted on Jan 02, 2017
SOURCE: 2005 Tucson
camshaft sprocket bolt 58-72 ft. lbs. crankshaft pulley bolts 108-132 ft. lbs. crankshaft pulley center bolt 80-94 ft. lbs. cylinder head bolts cold engine 65-72 ft. lbs. warm engine 73-80 ft. lbs. cylinder head rear cover bolts 69-86 in. lbs. flywheel/Driveplate bolts 94-101 ft. lbs. intake/Exhaust manifold nuts/Bolts 11-14 ft. lbs. jet valves 13-16 ft. lbs. main bearing cap bolts 36-39 ft. lbs. oil pan bolts 51-69 in. lbs. oil pan nuts 43-60 in. lbs. oil pan drain plug 33 ft. lbs. oil pump cover bolts 72-84 in. lbs. oil pump relief valve plug 29-36 ft. lbs. oil pump sprocket nut 25-28 ft. lbs. Rear oil seal retainer bolts 84-108 in. lbs. rocker arm shaft bolts 14-15 ft. lbs. rod bearing cap nuts 23-25 ft. lbs. silent shaft sprocket nut 22-28 ft. lbs. spark plugs 15-21 ft. lbs. thermostat housing-to-Engine bolts 86-114 in. lbs. timing belt tensioner bolt 32-40 ft. lbs. valve cover bolts 43-61 in. lbs. water pump-to-Engine bolts alternator brace bolt 14-20 ft. lbs. all others 9-11 ft. lbs. water pump pulley bolts 72-84 in. lbs.
Posted on Sep 08, 2008
assuming this is the "C" engine 8th digit on VIN plate. Use new bolts. torque first step to 25lbs, 2nd 50lbs, then 3rd 50lbs, then 1/4 turn.
Posted on Sep 23, 2009
You have two bolt sizes the shorter or smaller of the two sizes is called M10 the torque is 22ft lbs +65 degrees +65 degrees again The larger of the two bolts is called a M12 the torque for these are 26ft lbs +65+65. There is a tightening order staring at the top center bolt and working in a circle They have to be torqued in three steps. If you dont under stand something about this repost and I can help you farther. If this is helpful please mark that it was I do this for free to help people DRIVE SAFE TIM
Posted on Feb 19, 2010
.0L Torque Specs Belhousing to engine bolts 28-38 ft/lbs Camshaft sprocket bolt 40-45 ft/lbs Camshaft thrust plate to engine block bolts 108-144 in/lbs Crankshaft pulley to vibration damper bolts 35-50 ft/lbs Cylinder head bolts -1979-1992 --Step 1 55-65 ft/lbs --Step 2 65-72 ft/lbs -1993-up --Step 1 25-35 ft/lbs --Step 2 45-55 ft/lbs --Step 3 75-85 ft/lbs Differential shaft lock bolt 15-30 ft/lbs Driveshaft U-joint to pinion flange bolts 70-95 ft/lbs Exhaust manifold bolts 26-32 ft/lbs Flywheel mounting bolts 75-85 ft/lbs Front engine mount nuts 72-98 ft/lbs Intake manifold to head bolts --Step 1 96 in/lbs --Step 2 16ft/lbs --Step 3 23-25 ft/lbs Intake manifold (upper intake to lower) 12-18 ft/lbs Oil filter insert to engine block adapter bolt 20-30 ft/lbs Oil pan mounting bolts -1979 --Step 1 (Large bolts) 11-13 ft/lbs --Step 1 (Short bolts) 7-9 ft/lbs --Step 2 (Large Bolts) 15-17 ft/lbs --Step 2 (Short Bolts) 10-12 ft/lbs -1980 to 1987 9-11 ft/lbs -1988 to 1993 6-9 ft/lbs -1994-up 110-144 in/lbs Oil pickup tube to main bearing cap nut 22-32 ft/lbs Oil pickup tube to oil pump bolts -1979 to 1987 10-15 ft/lbs -1988-up 12-18 ft/lbs Oil pump mounting bolts 22-32 ft/lbs Pinion bearing preload 8-14 in/lbs Pressure plate to flywheel bolts 12-24 ft/lbs Rocker arm fulcrm bolts 18-25 ft/lbs Spark plugs 7-14 ft/lbs Timing chain cover bolts 12-18 ft/lbs Vibration damper to crackshaft bolt 110-130 ft/lbs Wheel lug nuts 85-105 ft/lbs
Posted on Mar 16, 2010
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