OEM 2010 Chevrolet Express 3500 Oil Pan

2010 Chevrolet Express 3500 Oil Pan Parts Questions & Experts Answers

• Q: How to replace the oil pan on 2010 Chevrolet Express 3500?

  A: To replace the Oil Pan, in the first place if you have the all wheel drive (AWD), you pull out the inner axle housing nuts and washer from the bracket, next you support the front drive axle with a suitable jack. Next, unbolt the differential carrier lower, upper mounting bolts and nuts if awd, so lower down the front drive axle and unbolt the transmission cover bolt. Then proceed to remove the crossbar bolts and the crossbar, the transmission cover bolt and cover. Drain the engine oil, and remove the engine Oil Filter, and re-install Drain Plug and Oil Filter until snug. For vehicles that have the 4l60-e automatic transmission, remove the transmission bolt and stud on the right side of the transmission and the bottom bolt on the left side. For those with the 4l80-e automatic types of transmission, it is necessary to remove the transmission converter cover bolts. Remove the oil time sensor connector and disconnect the positive battery cable clip bolt as well as the bolt from the battery cable channel. Slide the channel pin out of the Oil Pan tab. Remove the Oil Pan bolts and the Oil Pan, making sure that no foreign substances enter the oil passages. If required, drill out the Oil Pan Gasket retaining rivets and remove gasket and discard gasket and rivet. Clean and check the engine Oil Pan as required. For installation apply a 5mm (0.20 in) bead of sealant 20mm (0.80 in) long to the engine block, directly onto the tabs of front and rear cover gaskets that project into the Oil Pan's surface. Prior assemble the Oil Pan Gasket to the pan and install Oil Pan, gasket and bolts against the engine block to the bolts and tighten the Oil Pan bolts and snug but not overdo it. If fitted with the 4l80-e automatic transmission, fit the transmission converter cover bolts loosely low 4l60-e automatic transmission and fit the transmission bolt and stud on the right side loosely. Mount the lower bolt on the left side until it is tight, then fasten the Oil Pan to the front cover to 25 nm (18 lb ft), Oil Pan to rear cover to 12 nm (106 lb in), or fasten the converter cover and transmission bolts/stud to 50 nm (37 lb ft). Install the positive battery cable clip bolt and tighten it to 9 nm (80 lb in), slide the channel pin in the Oil Pan tab and install the battery cable channel bolt with a tightness of 12 nm (106 lb in). Connect the oil level sensor electrical connector, install the transmission cover and bolt, tighten to 12 nm (106 lb in), then put the crossbar and crossbar bolts, tighten to 100 nm (74 lb ft). Finally, install the bolt for top assembly of the transmission cover and tighten to 12 nm (106 lb in), place the front drive axle in position, install the differential carrier upper mounting bolt and nut snug before tightening, differential carrier lower mounting bolt and nut tightening to 100 nm (75 lb ft), the inner axle washer and nut to the bracket, tightening to 100 nm (75 lb ft). Pull out the jack of the front drive axle and add new engine oil as well as new oiler filter.