OEM 2002 Chevrolet Astro Distributor

2002 Chevrolet Astro Parts Questions & Experts Answers

• Q: How to replace the distributor in an engine on 2002 Chevrolet Astro?

  A: To replace a Distributor start with making sure that the ignition is off, but the engine cover, as well as the air cleaner assembly, the air intake resonator assembly must also be removed. Twist the Spark Plug Wires 1/2 turn away from the Distributor Cap housing and pull on the wire boot only. Pull the 2 Distributor base screws out, removing both as well as the electrical connector from the bottom of the Distributor, then replace them. Avoid re-installing the Distributor Cap while there is still gasoline in the cap's cavity. Instead, remove the complete cap and use a grease pencil to identify where the rotor's position is in relation to the Distributor housing and the Intake Manifold. When you take off the Distributor pay attention that the rotor will turn counter-clockwise 42 degrees put another mark on the base of Distributor for alignment while installing. Remove the mounting clamp hold-down bolt and remove the Distributor. For installation procedure 1, in the case of using a new Distributor assembly, mark the new housing in the same locations with the original one, align the rotor with the second mark, guide the Distributor into the engine, make sure the hold-down base lines up with the Intake Manifold mounting hole. While the Distributor is being installed, the rotor will rotate clock-wise by 42 degrees; if it does not fit with the mark on the Distributor base, remove and install Distributor. Tighten the Distributor mounting clamp bolt to 25 n.m (18 lb ft), fit the Distributor Cap and tighten it with new screws to 2.4 n.m (21 lb in). Connect the electrical connector, the Spark Plug Wires, and the ignition coil wire with correct orientation. When the malfunction indicator lamp goes on, and the dtc p1345 is set, the Distributor is incorrectly installed. In the case of installation procedure 2, rotate number 1 cylinder to top dead center (TDC) of the compression stroke and crank to align balancer marks with engine front cover tabs. Set the white paint mark on the bottom stem of the Distributor to align with the pre-drilled indent hole in the gear. There are certain Distributor components that should be marked so that they can be assembled the right way or else, improper installation can give a no-start condition or damage the engine. Fit the gear correctly and guide the Distributor into the engine with a flat face of the housing facing the front. Once seated the rotor segments should line up with the pointer that is on the Distributor base; if not, repeat the procedure. Tighten the Distributor mounting clamp bolt to 25 n.m (18 lb ft) install your Distributor Cap and screw it home using new screws that are tightened to 2.4 n.m (21 lb in) reconnect the electrical connector, install the spark plug wire and the ignition coil wire taking note of the correct orientation. Or, if malfunction indicator lamp lights up when installing and dtc p1345 is stored, retry installation procedure 2. Finally, install the engine cover.