Request torque spec for oil pan bolts on a 2001 Bonneville SE 3.8? It is leaking oil--appears to be coming from left rear corner of the oil pan gasket area, so want to re-torque pan bolts to see if that fixes it. Thanks much. Ted

12-13 foot pounds

Pontiac Engine Torque Specs

Butler Performance https://butlerperformance.com > p-34888-pontiac-engi...
Pontiac Engine Torque Specs ; Oil Pump Cover Bolts, Engine Oil, 15 ft-lbs. ; Windage Tray, Engine Oil, 15 ft-lbs. ; Oil Pan, Engine Oil, 12 ft-lbs. ; Camshaft ...

Oil and Transmission Pan Bolts. How much torque?

GMForum.com https://www.gmforum.com > ... > 1992-1999
Jun 12, 2003 - the Torque Specifications for the Xmission Oil Pan Bolts are 12-13 Ft. Lbs. Works for me.

Transmission pan Torque spec
Apr 28, 2017
4T65E-HD transmission pan bolt torque values
Feb 8, 2008
More results from www.gmforum.com

2004 Pontiac Sunfire 2-dr Transmission Pan Gasket ...

MyCarSpecs https://www.mycarspecs.com > pontiac > sunfire > 2004
The transmission pan gasket helps to seal in transmission fluid and keep it from leaking everywhere. This will degrade over time and need replacement, ...

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Bobby, oil pan bolt torques for 4.0 Wrangler. Oil Pan Bolts 1/4 84 in-lbs Oil Pan Bolts 5/16 132 in-lbs As far as sequence, see last link, start in center, criss cross pattern tighten snug all, then repeat to torque spec.
Check the attached links,instruction and guides, Good luck
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Oil Pan Gasket leaking
http://jeephorizons.com/tech/99_40l_torque_specs.html
98 jeep 4 0 oil pan bolt torque sequence specs Google Search

oil pan bolts are torqued in inch lbs due to their size and usually doesn't require a specific torque value. all bolts in a manual does show torque settings in all applications.However because of its non critical application a specific value is not necessary. a "snug" tightness is adequate with proper gasket/sealer in place to prevent seepage or leaks. in that area of the engine,leak can come from almost anywhere. top,front,or even rear of the engine blown by the wind a car creates while in motion. oil sensors{ but not limited to} are notorious for leaks as the vehicle ages particularly in that area. steam clean or thoroughly degrease the area and run the engine a few miles and recheck the area before proceeding to make repairs.

Jack up car to work under it. remove bolts on pan just enough to drain oil from it, the best way is to remove the bolts until oil runs from the corner of the pan. when able to,remove rest of bolts then drop pan. filter I believe, has 2-bolts. replace with new filter, if filter has a spacer on it make sure it is replaced with filter. when done replace pan and gasket, torque the bolts to specs. then add fluid, and check if any leaks. you can use old gasket if it is still good. God bless!

4WD To Remove:

1. Remove or disconnect the following:
   • Negative battery cable
   • Oil level indicator
   • Front differential assembly
   • Starter
   • Transmission cover
   • Oil pan drain plug and drain the engine oil into a suitable container
   • Remote oil filter pipe adapter
   • Remote oil filter hose clip bolt on oil pan
   • Starter wire harness bracket stud
   • Transmission oil cooler pipes (if equipped)
   • Access plugs for oil pan rear nuts
   • Transmission to oil pan bolts
   • Oil pan nuts and bolts
     
     NOTE: The low oil level sensor is not reusable.
     
   • Remove and discard the engine oil level sensor (if applicable)
     
     
   • The oil pan
   • The oil pan gasket
2. Discard the oil pan gasket.
3. Clean all sealing surfaces on the engine and the oil pan.

To Install:
Note: Whenever the transmission and the engine oil pan are removed from the engine at the same time install the transmission before the oil pan. This is to allow for the proper oil pan alignment. Failure to achieve the correct oil pan alignment can result in transmission failure.

1. Apply a 0.197 inch (5 mm) wide and 1.0 inch (25 mm) long bead of adhesive GM P/N 12346141 (Canadian P/N 10953433) or equivalent to both the right and left sides of the engine front cover to engine block junction at the oil pan sealing surfaces.
   
   
   
   
2. Apply a 0.197 inch (5 mm) wide and 1.0 inch (25 mm) long bead of adhesive GM P/N 12346141 (Canadian P/N 10953433) or equivalent to both the right and left sides of the crankshaft rear oil seal housing to engine block junction at the oil pan sealing surfaces. Note: Always install a new oil pan gasket. The oil pan gasket and oil pan must be installed and the fasteners tightened while the adhesive is still wet to the touch.
   
3. Install the new oil pan gasket into the groove in the oil pan. Note: The oil pan alignment must always be flush or forward no more than 0.011 inch (0.3mm) from the rear face of the engine block.
   
4. Install or connect the following:
   • The oil pan onto the engine block
     1. Press the oil pan gasket into the grooves of the engine front cover and crankshaft rear oil seal housing
     2. Slide the oil pan back against a suitable straight edge
   • The oil pan bolts and nuts, but do not tighten
5. Measure the pan-to-transmission housing clearance using a feeler gage and a straight edge.
   
   
   • Use a feeler gage to check the clearance between the oil pan-to-transmission housing measurement points
     1. If the clearance exceeds 0.011 inch 0.3mm) at any of the 3 oil pan-to-transmission housing measurement points (A), then repeat the step until the oil pan-to-transmission housing clearance is within the specification
     2. The oil pan must always be forward of the rear face of the engine block
   
   
   
6. Tighten the oil pan bolts and nuts in sequence
   • Torque to: 18 ft lb (25 Nm).
7. Measure the clearance between the 3 oil pan-to-transmission housing measurement points in order to ensure proper alignment.
8. Install or connect the following:
   • A new oil pan drain plug seal (O-ring) onto the oil pan drain plug
   • Oil pan drain plug into the oil pan
     1. Torque to: 18 ft lb (25 Nm)
     NOTE: The low oil level sensor is not reusable.
     
     
     
   • New low oil level sensor
     1. Torque to: 115 in lb (13 Nm)
   • Transmission to oil pan bolts.
     1. Torque to: 35 ft lb (47 Nm)
   • Access plugs for the oil pan rear nuts
   • Starter wire harness bracket stud
   • Transmission oil cooler pipes (if equipped)
   • Remote oil filter pipe adapter
   • Oil filter hose clip bolt to the oil pan
   • Transmission cover and bolts.
   • Starter motor
   • Front differential assembly
   • Oil level indicator
9. Fill the engine with oil.
10. Connect the negative battery cable.

1. Disconnect battery negative cable.
2. Remove air cleaner.
3. Remove upper fail shroud (V8)
4. Raise vehicle and drain oil pan.
5. Disconnect A.I.R. hose at converter pipe (V8)
6. Disconnect A.I.R. pipe at exhaust manifold (V8)
7. Remove exhaust crossover pipe at manifold and converter.
8. Remove starter.
9. Remove flywheel cover.
10. Disconnect transmission oil cooler lines at oil pan.
11. Remove engine mount 'through' bolts on V8. Loosen right bolt and remove left on V6.
12. Remove oil pan bolts and lower oil pan. Check that forward crankshaft throw and/or counter balance weight are not extending downward so to block oil pan removal. Turn crankshaft, necessary, to put throw on horizontal plane.
13. Raise engine.
14. Remove oil pan.

Installation

1. Clean sealing surfaces on cylinder case and pan.
2. Check oil pan gasket for damage; replace if necessary.
3. Apply a small amount of 1052751 or equivalent to front and rear corners of oil pan.

NOTICE: Only a small amount of sealant is required. Excessive amounts of sealant may cause a problem with proper sealing of oil pan.

1. Install retaining bolts and torque to 9 N.m (80 lb. in.).
2. Raise engine, if necessary.
3. Lower engine, install mount 'through' bolts and torque to 50 lb. ft. (65 N.m).
4. Install torque converter cover.
5. Install starter.
6. Install exhaust crossover pipe at manifold and converter.
7. Lower vehicle.
8. Install fan shroud.
9. Install air cleaner.
10. Fill crankcase with oil.
11. Connect battery negative cable, start engine and check for leaks.

normally a gasket between oil pan or sump as we call it try tighten the ring of bolts on oil pan

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Cavalier, Sunfire 2001-2005

Oil Pan - Removal & Installation

2.2L (VIN 4) Engine

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the engine oil.
3. Remove or disconnect the following:
   Negative battery cable Right front wheel Right inner fender splash shield Starter motor and bracket Engine mount strut bracket Oil pan

To install:




Fig. Exploded view of the oil pan mounting and related components-2.2L (VIN 4) engine

1. Place a 2mm bead of RTV sealer to the oil pan sealing surface except at the rear seal mounting surface. Using a new oil pan rear seal, apply a thin coat of RTV sealer on the end down to the ears.
2. Install or connect the following:
   Oil pan with a new gasket. Torque the nuts and bolts to 89 inch lbs. (10 Nm). Engine mount strut bracket. Torque the bolts to 49 ft. lbs. (66 Nm). Starter motor and bracket. Torque the bolts to 37 ft. lbs. (50 Nm). Right fender splash shield Right front wheel. Torque the nuts to 100 ft. lbs. (140 Nm). Negative battery cable
3. Refill the crankcase.
4. Start the vehicle and verify no leaks.

2.2L (VIN F) Engine

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the engine oil.
3. Remove or disconnect the following:
   Engine mount strut bracket Drive belt Lower then upper AC compressor bolts Oil pan bolts Oil pan
   
   
   
   Fig. Remove/Install the oil pan bolts in this sequence-2.2L (VIN F) engine
   

To install:

1. Apply a 2 mm bead of RTV sealant around the perimeter of the oil pan and the oil suction port opening. Do not over apply the RTV. More than a 2 mm bead is not required.
2. Install or connect the following:
   Oil pan and tighten the bolts to 18 ft. lbs. (25 Nm) AC compressor bolts Engine mount bracket Drive belt
   
3. Refill the crankcase.
4. Start the vehicle and verify no leaks.

2.4L Engine

1. Before servicing the vehicle, refer to the precautions section.
2. Drain the engine oil.
3. Drain the cooling system.
4. Remove or disconnect the following:
   Negative battery cable Flywheel/converter cover Right wheel Right wheel well splash shield Accessory drive belt Air conditioning compressor lower bolts Transmission-to-engine brace Engine mount strut bracket Radiator outlet pipe bolts Radiator outlet pipe from the oil pan Oil pan to the flywheel cover bolt and nut Flywheel cover stud for clearance Radiator outlet pipe from the lower radiator hose and oil pan Oil level sensor connector Oil pan

To install:

1. Inspect the oil pan gasket; it is reusable if not damaged.
2. Install or connect the following:
   Oil pan with the gasket. Torque the M8 bolts to 18 ft. lbs. (24 Nm) and the M6 bolts to 106 inch lbs. (12 Nm).
   
   
   
   Fig. Oil pan fastener torque specifications-2.4L engine
   Oil pan to the transmission nut Oil level sensor connector Radiator outlet pipe to the lower radiator hose and oil pan Exhaust manifold brace Radiator outlet pipe. Torque the bolts to 124 inch lbs. (14 Nm). Engine mount strut bracket. Torque the bolts to 55 ft. lbs. (75 Nm). Transmission to the engine brace Air conditioning compressor lower bolts. Torque the bolts to 37 ft. lbs. (50 Nm). Accessory drive belt Right splash shield Right front wheel Flywheel/converter cover Negative battery cable
3. Refill the crankcase.
4. Refill the cooling system.
5. Start the vehicle and verify no leaks.

Hope helped (remember rated this help). Good luck.

drain the oil
remove all bolts from the pan.
verify new gasket hole patern matches your pan
use a high temperature silicone and put silicone on pan and stick new gasket to pan makig sure all holes line up.
when re-installing start at the corners of the oil pan and then go in a clockwise motion adding one bolt to the opposite side if the corner bolts until all bolts have been replaced.
tighten all bolts evenly starting in the cornersdo a criss cross pattern when tightening bolts to make sure pan seats properly
go back and snug any loose bolts
if you have a torque wrench or want to rent one go ahead and torque bolts to.
done.

Torque specs on pan aren't really necessary. First put all screws in place to get the pan properly located, (make sure you have put a decent dab of rtv sealant at the corners of the end seals before you put the pan up) Run each screw up to where it begins tightening (but no further) Start with either side center, then the opposite side, then work in an X pattern towards both ends, using enough force to make the bolts secure, but not so they are crushing the gasket. The larger bolts at the corners (where you put the sealant) can be tightened a bit more than the small ones. Let it sit about an hour, then just go over it again. Use a 1/4 drive short ratchet to avoid overtightening, after runing check for any seepage. You can turn those screws a bit tighter to take up for any pan warpage.
Been building engines for a long time and aside from the first time, I never used a torque wrench (specs are in inch pounds, usually 12-15...Ive found that unless you have a brand new pan that is absolutely straight and flat, using those specs often produces leaks.