HubPages is a registered trademark of The Arena Platform, Inc. Other product and company names shown may be trademarks of their respective owners. This system is fitted with a pickup coil inside the distributor. The computer system is designed to work with specific vacuum values and when Consult your vehicle repair manual, if necessary. Pay special attention to systems in need of maintenance, like ignition, fuel, the PCV, and air cleaner systems. The slightest malfunction in any part will make an engines cycles deviate from what is optimal, impeding the engines performance. It is important to diagnose the issue quickly and take the necessary steps to fix it, as it can lead to further engine damage if left unchecked. You can check your catalytic converters by using a vacuum gauge, an infrared thermometer, or a backpressure gauge. Lastly, engine misfires can come from a loss of vacuum coming from the intake system. The problem happens during trips lasting over an hour and the vehicile is at full operating temperature. You might also notice that the bad crankshaft sensor causes stalling, trouble starting, and added vibration. Lastly, you should analyze your TPS for any misalignment or wear that could be causing surging issues. stream Its also possible that theres a transmission leak. Check engine control systems with a scan tool. The following sections help you implement this type of strategy and focus on the most common systems or components related to engine surge issues. 5,500 / mo. Usually, a plugged or degraded catalytic converter causes engine power loss. In order to accurately diagnose the cause of surging in your Chevy truck, it is best to take it to an experienced mechanic who has worked on these types of vehicles before. I'm the owner of a 2001 Tahoe 5.3 with about 150k on the odometer. However, before you start checking system pressure, make sure you've changed the fuel filter according to your vehicle repair manual schedule. However, it could also be due to a defective idle air control valve (IAC) valve that controls the airflow during idle. /ColorSpace /DeviceCMYK So make sure to check the system as well, if necessary. 8365 Views 13 Replies 5 Participants Last post by 9294chevy, Apr 22, 2016. The fix: This is generally not a DIY job. Lastly, a bad electronic module gives room to car surges since it doesnt regulate car components smooth operation. This problem does not cause a trouble code The fuel filter may be partially clogged. Are you able to disable the egr with your edge? Check the throttle pedal position sensor, if necessary. Check fuel pressure with a fuel pressure gauge. /Title Our certified technicians are ready to answer car repair Similar to what happens when youre running on bad gasoline as explained above, more air entering the engine will cause a cycle of engine surging. Searching for Diagnostic Trouble Codes. My truck has no codes, but does the same thing your talking about. When this fault appears, there are a number of components or systems you may want to look into first: Basically, when an engine surges, you notice your car speeding up and slowing down even while you keep the accelerator steady. Most drivers can notice car surges whenever they see the tachometer alternating and feel soft jerking movements with the car. As explained above, an overheated engine can cause engine surging.
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