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Industry info Wiki Q&A
Q can a bad starter cause check engine light
ClementKathleen
NataliePullan Release Time: 3月 30, 2024, 3:05 下午
A bad starter itself typically does not trigger a check engine light (CEL) directly since the starter’s primary function is to crank the engine, and it’s not monitored by the engine control unit (ECU) for emissions or engine performance issues. However, issues related to a bad starter, such as low battery voltage or electrical problems, can indirectly cause sensors monitored by the ECU to read out of their normal range, potentially triggering the CEL. It’s important to diagnose the CEL with an OBD-II scanner to pinpoint the exact cause. If the CEL comes on and starting issues are noticed, it’s advisable to check both the starting system and other potential engine issues flagged by the ECU codes to ensure proper vehicle function and to avoid misconstruing the root cause of the light.
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Q how to identify a zz4 engine
ClementKathleen
ChristineWild Release Time: 3月 22, 2024, 6:09 下午
Identifying a ZZ4 engine, a popular small-block crate engine from Chevrolet, involves several key steps. Look for distinct markings on the engine block or heads, like the “ZZ4” stamp or specific part numbers indicating its origin. The ZZ4 typically features aluminum cylinder heads with a unique casting number (10243880 for the block and 12556463 for the heads) and is equipped with a hydraulic roller cam. Additionally, its distinctive intake manifold and the presence of a Holley 750 cfm carburetor (in most factory setups) further aid in identification. Checking the vehicle’s documentation or consulting with a Chevrolet dealer or a knowledgeable mechanic can also provide confirmation. Given the ZZ4’s popularity and performance-enhancing attributes, correctly identifying one can significantly impact restoration projects or performance upgrades, making these identification steps crucial for enthusiasts and professionals alike.
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Q how to clear check engine light
TeresaTrevelyan
ClementKathleen Release Time: 2月 23, 2024, 6:31 下午
1. Let it clear itself: The best way to clear a check engine light is to fix the issue that the ECU is reporting and let it clear itself. Once the ECU recognizes the problem is fixed, it will eventually turn off the check engine light. 2. Use an OBD2 Scanner: The next way you can clear a check engine light is by using an OBD2 scanner. This small device will read trouble codes, tell you what they mean, and clear them. Here’s how: – Find your car’s OBD-II port. It should be located somewhere underneath your steering wheel. – Plug your diagnostic tool into the OBD-II port. – Turn your ignition on. – Wait for a few moments while your tool communicates with the ECU. – Your scanner will have a function to clear or reset check engine light. Use this function and the light should be turned off (Note: It will come back on unless the problem is fixed). IMPORTANT NOTE: NEVER attempt to disconnect the battery to clear the light. Disconnecting the battery in some...
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