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1996 Chevrolet Blazer - Page 3 Questions & Answers
Will a '92 4.3 Vortec motor fit in a '96 4x4 Blazer?
Yes it will bolt up but NO it won't run . The 96 has a crank sensor hole in the timing cover the 92 does not . The timing covers are not interchangeable (different bolt pattern ) . You would have to change complete wiring harness including computer all the way to the OBD diagnostic port . It will work but a LOT of work .
Is there more than one modular on a 96 Blazer is one in the distributor
More then one modular ? Module ! Ignition module ? Which engine ? 2.2 L or 4.3 L
2.2 L has no dist.The electronic ignition (EI) system does not use the conventional distributor and coil.
4.3 L Enhanced Ignition System (Overview)
The ignition system initiates combustion by providing a spark to ignite the compressed air and fuel mixture at the correct time. In order to provide an improved engine performance, fuel economy, and control of exhaust emissions, the control module controls the distributor spark advance, or timing, with the ignition control (IC) system.
The ignition system uses a primary and secondary sub system in order to accomplish the timed spark distribution. The primary system consists of a low voltage trigger device which determines the base timing. This signal is modified by the ignition control driver (ICD) module. The signal travels to either or both the engine and transmission processor (control module) for base timing reference. Another signal is sent back to the ignition control driver (ICD) module, which has been adjusted by the control module (advanced or retarded) in order to trigger the coil, according to the requirements of the engine.
The secondary system consists of the ignition coil which has primary, or low voltage, windings and secondary, or high voltage, windings. The secondary side of the ignition coil generates a high voltage which high tension spark plug wires deliver to the spark plugs.
The control module controller now controls the ignition control (IC) and bypass functions.
In order to properly control the ignition and combustion timing, the control module needs to know the following things:
• The crankshaft position
• The engine speed or RPM
• The engine load -- manifold pressure or vacuum
• The atmospheric or barometric pressure
• The engine coolant temperature
• The camshaft position sensor
No module in the distributor
Why does shift selector go into park sometimes but other times won't?
The travel limits on the shift linkage at the transmission is adjustable. The nylon bushings on the pivot points may be worn too. Have a mechanic inspect the linkage for any abnormal wear on the bushings or the linkage itself. Renew the bushings before you try adjusting the linkage.
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