OEM GMC Oil Pan

GMC Oil Pan Parts Questions & Experts Answers

• Oil Pan
  12609074
  Q: How to replace the oil pan on 4WD on GMC Yukon?

  A: If you need to change the Oil Pan of the 4wd vehicles, first lift the 4wd up and support it. 1500 series; remove the Oil Pan skid plate bolts and skid plate if so equipped; for 2500 series, remove 2 rear Oil Pan skid plate bolts, and 2 front bolts and skid plate if equipped. Looseenting. Remove the front differential carrier, unbolt the steering rack and let the latter hang downward, thereafter, position an appropriate drain pan beneath the Oil Pan Drain Plug (430) and unscrew the Oil Pan Drain Plug and allow the oil to pour off and afterwards, reinstall the Oil Pan Drain Plug securely. Set the drain pan under the Oil Filter, remove Oil Filter (437) and wait for the oil to drain out before reinstalling the Oil Filter securely. Tap off the right and left side transmission cover bolts and cover, followed by the crossbar on both the 1500 and 2500 series vehicles. For the vehicle equipped with a 4l60-e/4l70-e automatic transmission, remove the 2 lower transmission bolts; for 4l80-e, remove the 2 lower transmission bolts; for 4l80-e, come off 2 lower together bolts; for 6l80-e, have to come off lower left together bolt and lower right together stud. Unplug the engine harness electrical connector from oil level sensor, remove the engine harness clip from transmission oil cooler line bracket, and remove the battery channel bolt. Slide the channel pin out from the Oil Pan tab, and with the oil cooler lines pulled from the clip for the subjected automatic transmissions. First remove the transmission oil cooler line clip bolt &clip from the Oil Pan, then the Oil Pan bolts, then the Oil Pan. Drill out any Oil Pan Gasket rivets if needed, remove and discard the Oil Pan Gasket and rivets. When installing, new Oil Pan Gasket apply a 5mm (0.20 in) bead of sealant 20mm (0.80 in) on the tabs of the front and rear cover gaskets on engine block and then install the Oil Pan and the remaining Oil Pan bolts and until fastened. For 6l80-e automatic transmission vehicles, install the oil cooler bracket and tighten the lower right transmission stud and lower left transmission bolt until tight; for 4l80-e and 4l60-e/4l70-e, install their respective lower transmission bolts until tight. Upgrade the peculiarity of the Oil Pan and Oil Pan-to-Oil Pan front cover bolts to 25 n.m (18 lb ft),peculiarity peculiarity of Oil Pan-to-rear cover bolts to 12 n.m (106 lb in),peculiarity peculiarity of transmission bolts/stud to 50 n.m (37 lb ft). Install and tighten the transmission oil cooler line clip with the bolt by measuring 9 n.m (80 lb in) on the Oil Pan. The oil cooler lines inspection on clip for the respective automatic transmissions, at the channel position, slide the channel pin into the Oil Pan tab, and on battery cable channel bolt tightening to 12 n.m (106 lb in). Fasten the engine harness electrical connector to oil level sensor and reinstall the engine harness clip to the transmission oil cooler line bracket. For both series, strip away any indication of the adhesive patch to start with, clean the bolt threads with denatured alcohol and apply threadlock gm p/n 12345493 (Canadian P/N 10953488) or equivalent to the threads of the bolts. Install crossbar and bolts/nuts for 2500 series by using nuts tightening torque at 120 n.m (89 lb ft) while for 1500 series use the nuts tightening torque of 100 n.m (74 lb ft). Install the left side transmission cover and the cover bolt with 12 n.m (106 lb in) followed by the right side cover bolt. If the old Oil Pan is to be reused, remove and extract an old Oil Filter and install a new Oil Filter (437), lubricating the seal with clean engine oil and tightening to 30 n.m (22 lb ft). Make sure the Oil Pan Drain Plug (430) settled at 25 n.m (18 lb ft), reinstalled the front differential carrier, lifted the steering rack and install the steering rack bolts, tightening the left side bolts to 200 n.m ( 148 lb ft) and the right side bolts to 100 n.m (74 lb ft). To 2500 series vehicles: install the Oil Pan skid plate and tighten the 2 rear Oil Pan skid plate bolts and install the 2 front Oil Pan skid plate bolts, if equipped, to 28 n.m (21 lb ft). For 1500 series vehicles, position the Oil Pan skid plate and install the bolts if equipped and tighten them to 28 n.m (21 lb ft). Finally, lower the car, and fill the engine with new engine oil, and switch on the engine to check for leaks.
• Oil Pan
  12640746
  Q: How to replace the oil pan on 4WD on GMC Sierra 1500?

  A: Raising and supporting the vehicle should be the first step before replacing its Oil Pan on vehicles with 4wd capabilities. When working on 1500 series vehicles operators should unbolt the skid plate bolts together with the optional skid plate. On 2500 series vehicles, start by loosening the two rear Oil Pan skid plate bolts then remove the two front bolts alongside the skid plate if your vehicle has one. Start by removing the front differential carrier followed by unbolted steering rack installation before hanging it downward. Position a proper drain pan beneath the Oil Pan Drain Plug before you remove it (430) to allow complete oil drainage before tightening the Drain Plug into place. Set a drain pan directly under the Oil Filter before you remove the filter (437) to allow the oil to drain completely while you tighten the Oil Filter until it becomes snug. Detach right and left side transmission cover bolts before removing the cover and crossbar bolts/nuts and crossbar for both 1500 and 2500 series models. Vehicles with 4l60-e/4l70-e automatic transmission require bolt removal from the two lower transmission mounting points. For 4l80-e, remove the 2 lower transmission bolts; 4l80-e requires removal of two lower transmission bolts and 6l80-e demands removal of lower left transmission bolt along with lower right transmission stud. You need to disconnect the engine harness electrical connector at the oil level sensor point while removing the engine harness clip from the transmission oil cooler line bracket and removing the battery cable channel bolt. Insert the Oil Pan tab channel pin into position before removing oil cooler lines from the clip according to transmission type specification. Begin by removing the clip bolt from the transmission oil cooler line on the Oil Pan before taking out the bolts securing the Oil Pan then finally removing the pan itself. You must drill out existing Oil Pan Gasket rivets before removing the gasket when keeping the Oil Pan for use. Toss both the rivets and gasket into the trash. During installation users must place a new Oil Pan Gasket onto the Oil Pan. Users should then add sealant forming a 5 mm (0.20 in) bead that extends 20 mm (0.80 in) along the tabs of the front and rear cover gaskets protruding into the Oil Pan surface of the engine block. Put one Oil Pan bolt through its hole until it reaches the gasket then place the Oil Pan in position while adding remaining Oil Pan bolts before tightening those bolts to a secure fit. Position the oil cooler bracket first and install lower right transmission studs together with lower left transmission bolts until they are hand tight. The appropriate lower transmission bolts need to be installed until they reach their initial tightness for both 4l80-e and 4l60-e/4l70-e transmissions. Tighten all Oil Pan bolts and pan-to-front cover bolts to 25 nm (18 lb ft) torque and Oil Pan-to-rear cover bolts to 12 nm (106 lb in) torque. Additionally, install and torque transmission bolts/stud to 50 nm (37 lb ft). Mount the transmission oil cooler line clip then bolt it to the Oil Pan using a torque of 9 nm (80 lb in). First bolt the oil cooler lines to the clip (as applicable) then position the channel and slide the channel pin into the Oil Pan tab before installing the battery cable channel bolt and tightening it to 12 nm (106 lb in). After connecting the engine harness electrical connector to the oil level sensor route the engine harness clip toward the transmission oil cooler line bracket. Maintenance personnel must remove any existing adhesive from 1500 and 2500 series applications. They must wash the bolt threads with denatured alcohol before applying threadlock gm p/n 12345493 (or Canadian P/N 10953488) or equivalent to the bolt threads. For vehicles in the 2500 series tighten the crossbar bolts/nuts to 120 nm (89 lb ft) while vehicles in the 1500 series require a torque of 100 nm (74 lb ft). Before fastening either bolt you must torque the left side one to 12 nm (106 lb in) followed by torquing the right side one to 12 nm (106 lb in). Before tightening the Oil Filter,get new filter ready and apply clean oil around the seal. Tighten the filter to 30 nm (22 lb ft). After securing the Oil Pan Drain Plug (430) with a torque of 25 nm (18 lb ft) reposition the front differential carrier before raising the steering rack into position and tightening its left side bolts to 200 nm (148 lb ft) and the right side bolts to 100 nm (74 lb ft). Installation of Oil Pan skid plate should begin with tightening the rear Oil Pan skid plate bolts on 2500 series vehicles followed by front bolt installation if vehicle has this equipment, torque all bolts to 28 nm (21 lb ft). Install the Oil Pan skid plate for 1500 series vehicles when equipped with it and torque the bolts to 28 nm (21 lb ft). After dropping the vehicle you should start the motor and fill it with brand-new engine oil before checking for leaks.
• Oil Pan
  12600499
  Q: How to replace the oil pan on GMC Canyon?

  A: The first step to replace the Oil Pan requires removal of both the oil indicator tube and level indicator after taking out the engine protection shield. Clearance for the Oil Pan requires draining engine oil along with removing components. For rwd, remove the crossmember; the Oil Pan replacement requires different steps for rwd and 4wd systems. Rwd owners must remove the crossmember while 4wd owners must remove front propeller shafts and differential carrier assembly bushing to frame bolts before pulling the assembly downward and securing the pinion yoke to avoid rotation. The service slot plug and the fuel hose/pipe bracket nuts and the four lower transmission mounting bolts on the Oil Pan must all be removed. Pry out the power steering gear mounting bolts before pulling the power steering gear down to gain access then disconnect the engine wiring harness retainers from the Oil Pan and finish by unscrewing all Oil Pan bolts. After drilling two jack screws into the threaded Oil Pan holes at its rear you need to uniformly tighten them until the pan separates from the engine block. Remove the Oil Pan and jack screw bolts. Cleanness and visual scan must follow the inspection of both the Oil Pan and the engine block sealing face. Place 5.5 mm (0.22 inch) bead of sealer gm p/n 12378521 (Canadian P/N 88901148) on the Oil Pan in areas marked while applying a 3 mm (0.12 inch) bead on areas marked . Ensure the sealer does not touch the oil pump pipe and screen assembly. Before installing the Oil Pan to the engine block position the rear Oil Pan surface directly against the rear block surface then finalize the alignment details in relation to the presence or absence of the Transmission Assembly. Follow these torque requirements: tighten the side bolts to 25 nm (18 ft. Lbs.) and the end bolts to 10 nm (89 inch lbs.) during the Oil Pan bolt installation process. Connect the power steering gear mounting bolts then position the power steering gear so it points toward the frame assembly. Next, install the engine wiring harness retainers to the Oil Pan. Secure the four lower transmission mounting bolts at 50 nm (37 ft. Lbs.) before installing nuts that hold the fuel hose/pipe bracket to the transmission and set their torque to 20 nm (15 ft. Lbs.). After service slot installation you must place applicable components for rwd or 4wd, then add the engine protection shield with the oil level indicator tubing and engage engine oil prior to installation completion.