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The Quad 4 is the first domestic regular production DOHC four-cylinder engine wholly designed and built by GM, the only similar prior example being the Chevrolet Cosworth Vega, whose DOHC head was designed by Cosworth in England. In addition to the 2.3-liter DOHC Quad 4s, there was also a short-lived 2.3-liter SOHC variant called the "Quad OHC ...
Do not confuse with later AMC 2.5 L engine that uses GM small corporate pattern . Chevrolet Turbo-Thrift engine (post-1962) Chevrolet 153 Inline 4 (Chevy II, pre-Iron-Duke - includes the Vortec 3000/181 industrial/marine crate motor) Detroit Diesel V8 6.2L and 6.5L; Duramax V8; Generation III V8s with modifications. These modifications include ...
The General Motors ignition switch recalls refers to February 6, 2014 when General Motors recalled about 800,000 of its small cars due to faulty ignition switches, which could shut off the engine while the vehicle was in motion and thereby prevent the airbags from inflating. [1]
Removed text: Many Quad 4 engines did not see over 120,000 miles (190,000 km) due to connecting rod issues [citation needed].The Quad 4 was plagued with blown headgasket issues almost from the introduction of the engine. The problems primarily arose from the fact that the cylinder head was built from aluminum and the block from cast iron, which ...
The GM Quad 4 multi-valve engine family debuted early 1987. The Quad 4 was the first mainstream multi-valve engine to be produced by GM after the Chevrolet Cosworth Vega. The NA Quad 4 achieved 1.08 bhp (1 kW; 1 PS) per cubic inch (49.1 kW/liter). [2] [20] Such engines soon became common as Japanese manufacturers adopted the multi-valve concept.
As of 1996 a new 4-speed automatic became available in any trim; this had originally been intended to be introduced along with the redesign but General Motors' cash shortage delayed it. [19] The Z24 and LS convertible used the 2.3 L LD2 Quad 4 engine in 1995, but they received a new engine in 1996, the 2.4 liter DOHC LD9. This engine could also ...
A check engine light or malfunction indicator lamp (MIL), is a tell-tale that a computerized engine-management system uses to indicate a malfunction or problem with the vehicle ranging from minor (such as a loose gas cap) to serious (worn spark plugs, engine problems or a faulty oil valve, etc.).
It was offered in four different trim levels during its production run: S, SC, SL, and SCX. Available engines included different versions of the Oldsmobile-developed 2.3 L Quad 4 engine: the base single-cam L40 "Quad OHC", the DOHC LD2, the high-output LG0, and the special "W41" variant of the LG0 Quad 4 used in the SCX model. All were replaced ...