OEM 2004 Chevrolet Silverado 1500 Distributor

2004 Chevrolet Silverado 1500 Distributor Parts Questions & Experts Answers

• Q: How to replace the distributor on 2004 Chevrolet Silverado 1500?

  A: To replace the Distributor, loosen the air cleaner outlet resonator and the camshaft position (CMP) sensor and as well as fuel pump/oil pressure sensor. Next, take off the Ignition Coil wire from the Ignition Coil and the Distributor Cap, followed by the Spark Plug Wires from the Distributor Cap, twisting each boot 1/2 turn and pulling only on the wire boot. Remove the screws holding Distributor Cap and take off the Distributor Cap. Mark the position of the rotor in relation to the Distributor housing and the Intake Manifold and turn off the hold down bolt and remove the Distributor, which will turn counterclockwise approximately 42 degrees. Put another mark on the base of thedistributor for correct rotor alignment when you mount the Distributor. During replacement of a new Distributor, two marks are made on new Distributor housing at the place of original one and rotor is aligned with the second mark and then Distributor is installed such that the hole should be aligned with the Intake Manifold in Distributor hold-down clamp. As the Distributor is installed, notice the rotor going in a clockwise rotation of approximately 42 degrees;if the rotor segment is not aligned with the number 1 mark, remove and reinstall the Distributor. After being seated, one segment should match the mark on the Distributor base to be in line with the rotor segment. Install the Distributor hold down bolt and tighten it to 25 n.m (18 lb ft), and then install the Distributor Cap and new screws, twisting in to 2.4 n.m (21 lb in). Reattach the cmp sensor and fuel pump/oil pressure sensor, making sure the coil wire nipple is flush with the bottom of the mating arm within 35-60 degrees (aft of 90 degree course) from the centerline of the engine on the outboard side. Mount the Ignition Coil wire, connecting it again to the Ignition Coil and Distributor Cap. If the malfunction indicator lamp (MIL) is on even after installation and dtc p1345 is present, the Distributor was installed wrongly. Otherwise, replace the air cleaner outlet resonator. For the second installation procedure, pull the number 1 cylinder to top dead center (TDC) of the compression stroke and the crankshaft balancer alignment marks to the engine front cover tabs. Press the white paint mark at the bottom stem of the Distributor with the pre-drilled indent hole on the gear. Mark the Distributor driven gear, shaft and rotor holes to indicate the right reassembly and suitability. With the gear fitted in the right place, drive the Distributor into the engine such that the spark plug towers are parallel to the engine centerline. The rotor segment should be in line with the pointer on the Distributor base once fully seated. If not, repeat the procedure. Place the Distributor hold down bolt and tighten it to 25 n.m (18 lb ft), and put on the Distributor Cap and new screws, tightening to 2.4 n.m (21 lb in). Reconnect the cmp sensor and fuel pump/oil pressure sensor, making sure the coil wire nipple is in its correct location, and install the Ignition Coil wire. If the mil is set and dtc p1345 is detected, perform the second installation procedure again; if not, change the air cleaner outlet resonator.