still having issues. The most … (mike)>> today on engine power pat and i will be building a high compression race engine. Air filter, nothing. The engine was still running, but the throttle would not respond. 3. Advertisement . My 2003 2500 siverado check engine light comes and display's reduced engine power. 2009-’11 Chevrolet Silverado Two-Mode Hybrid Connect the approved Midtronics PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) to the vehicle. VIDEO: The Importance Of Digital Vehicle Inspections, Alternator Testing For No Charge Conditions, Oil Clearances and Options for LS Engines, 7 Reasons Direct-Injection High-Pressure Fuel Pumps Fail, Servicing Electronically Controlled Thermostats, Ford F-150: Lack Of Heat In Low Temperatures, Hyundai, KIA Develop GPS, Camera Connected Shift System, Engine Build: Stage 2 6.7L Twin Turbo Cummins Engine. I cannot find an answer anywhere. • If the above recommended tool is not available, do not connect a battery charger to the vehicle. If you have the reduced engine power light, then there are going to be some diagnostic trouble codes stored in your OBD II system. I am at a complete loss and am not ready to replace half of the engine to try to find the problem. I've driven straight away to the Vern Ide in Lewiston Idaho while it's happening … Install any remaining components that were removed during this procedure. This little gadget, as it’s name implies, is responsible for monitoring the air that is drawn into your car’s engine. I lost most power and it felt like I was on 3 cylinders. 5. 19. replaced throttle body and apps sensor twice. 2008-’11 GMC Yukon Two-Mode Hybrid The technician may observe on a scan tool DTC P2135: … It will then run fine, sometimes for a few miles, sometimes for weeks. Anyways, I pulled over, turned off the key. Notice: Do not allow the intermediate gear to fall out. Advertisement. 25. In some vehicles, it can be a warning … For now, I can drive with a code reader hooked up and it takes exactly 12 sec to clear the code and I'm driving again. I pulled over shut it off. 2008-’09 HUMMER H2 Do not drop the electronic throttle control components. Refer to the SPS procedures in SI. This air is a vital part of the combustion process that is at the heart of your engine, so monitoring the air intake is of course equally vital. 2009 Chevy Impala Engine Light And Reduced Power; Check Engine Light Code P0300 On GM 2.2L and 2.4L; 1997 Pontiac Grand Am ABS And Check Engine Light; Buick Lesabre Stalls Out And Check Engine Light ; ACTUATOR Car Repair Check Engine Light Computer Engine Problem Sensor Throttle Body Post navigation. This light isn’t found in all vehicles out there, nor is it always a light in the vehicles that do have this warning mechanism. Some Escalade, TrailBlazer, Silverado, Tahoe, Yukon, Sierra, HUMMER and other GM SUV/truck owners may comment on an illuminated malfunction indicator lamp (MIL), with a 2008-’09 Chevrolet TrailBlazer Still throwing a misfire... will be driving and reduce engine speed comes on, This problem has happened off and on for over a year, have had a local mechanic check it, but it would never act up when he checks it, wanted to do this in case anyone else has had the same problem, would appreciate any advice or help thanks, this 2003 Chevy p.u. Service Procedure Advertisement. Link must be about this specific problem or it will be deleted — it must be free & helpful, like a video or web page or forum thread about this exact problem. Verify the battery voltage is more than 12 volts but less than 16 volts before proceeding with ECM reprogramming. 24. During the summer time I do not have many problems with it, but when the weather starts getting cold it will run for 10 to 15 mins then go into reduced power mode. Check engine light; Reduced Power message; OBD trouble code P2135; This issue is related to the throttle position sensor, and can be caused by faulty wiring to the TPS, bad connection at the TPS, or a failed TPS. Watch the following two videos that show how a damaged wire caused a Reduced Engine Power message to appear in a 2007 Chevy HD. DON'T WASTE YOUR TIME: Important: If at any time during this procedure the throttle body is dropped, abort this procedure and replace it with a new throttle body assembly. Open the hood. If you have a for-profit service, contact us. For more information on how we collect and use this information, please review our Privacy Policy. • If DTC P1516, P2101 and/or P2176 are not set, proceed to Step 30. 6. Discard the old TP sensor cover, gasket and terminals. Hold the throttle body with your hand, so that the throttle position (TP) sensor cover is facing upward as shown in Figure 1. Restarted the engine and the "reduced Power" light was out, but CEL was still on. With a scan tool, verify that DTC P2135 is set as Current or in History. Lightly depress the intermediate gear to verify that it is fully seated and the gears are engaged. Ensure that the gasket is accounted for and remains with the old TP sensor cover. 29. Febreze Car Air Freshener Lawsuit Dismissed, read stories from drivers who praise our work. "CarComplaints.com" ®, "Autobeef", "What's Wrong With YOUR Car?" After all that talk of sensors and how they can help your car, it only seems fitting to start with how failed sensor can actually harm it! Average failure mileage is 186,800 miles. When it happens it slows down and a dinger goes off and as we pull over, the truck shakes violently. I plugged in my code reader, and it showed a misfire on every cylinder. Engine Power Reduced on Chevrolet Malibu Vehicles Reported. Models: Could you tell me what the problem could be. Connect the electrical connector to the throttle body. I started it back up after a few minutes and it was fine. The 2010 Chevrolet Silverado has 6 problems reported for decreased engine power. 31. Warning: Approved safety glasses and gloves should be worn when performing this procedure to reduce the chance of personal injury. Some customers may comment on an illuminated malfunction indicator lamp (MIL), with a If necessary for ease of the clip installation, secure a rubber band around the throttle body and TP sensor cover. Remove the throttle body and discard the throttle body gasket. Shut if off and waited 15 min and off I went. We use cookies to analyze & improve your experience, & to personalize content and ads. 6.0 4x4 has 92,000 miles you can be driving dowu the road and it will shut down to idol the readout on dash says reduced engine power what is the problem. Tighten the throttle body fasteners to 10 Nm (89 lb.-in.). See Figure 3. How I fix reduced engine power notification on my Chevy truck. Grasp and hold the throttle body in the previously hand-held upward position. Position and install the TP sensor cover to the throttle body. 13. 2 Answers I got code p2176 I changed out the tps still got same problem did not have this problem with other engine just changed engine out now cant … While driving the truck will go to reduced engine power. Rapidly depress the accelerator pedal from the rest position to the WOT position and release the pedal. Turn over the throttle body and use a flathead screwdriver to remove the two clips (1, 2) as shown in Figure 2. 1999 … Use cleanliness in order to prevent damage. Hold the throttle body with your hand, so that the TP sensor cover is facing upward. Attention: If a vehicle is encountered with this condition, do not replace the throttle body. reduced engine power? 22. Inspect the throttle body for damage. Feb 11 2013, 12:48am. Search CarComplaints.com for these popular complaint phrases... CarComplaints.com ® is an online automotive complaint resource that uses graphs to show automotive defect patterns, based on complaint data submitted by visitors to the site. Install the remaining TP sensor cover clips in the sequence shown in Figure 8. Reduced engine power. 33. When this light (or both lights) comes on, you'll notice the engine barely responding to the accelerator. 2008-’11 GMC Canyon, Savana, Sierra, Sierra Denali, Yukon, Yukon Denali, Yukon XL, Yukon XL Denali 2009-’11 GMC Sierra Two-Mode Hybrid One day on the way home from work, the engine light came on, the bell rung, and the message board said "Reduced Engine Power". Remove the new TP sensor cover from the protective shipping wrapper. I cleared the code and everything was fine again. What else could it be? i will be driving down the road and all of a sudden it comes up with reduced engine power on my screen, and i lose gas pedal. Mar 18, 2014 #1 I have a 2008 2500HD that has me stumped. I put a new air filter in it, it stayed off for a few days then come back on again. During reprogramming, the battery voltage must be maintained within the proper range of 12-15 volts. 2008-’10 HUMMER H3, Equipped with Engine RPO LFA, LY2, L20, LMG, LC9, LH6, LMF, LH8, LH9, L76, LS2, LY5, LY6, L92, L96, LZ1, L94 or L9H. Chevy reduced engine power I have a Chevy avalanche 2500 2002 8.1 liter I drove thought some high water here in Pensacola and getting home truck started to sputter and stall I got it home and cranked it next data lot of white smoke but couple of days ran better but to be sure no water in gas put some sea foam in tank yesterday got almost home lost power going up driveway … The throttle body can be set on the top of a soft, protected workbench area. Remove any loose debris and dirt from the throttle body assembly and the TP sensor cover. 34. This is great news, since it helps narrow down where the ECU thinks that the problem is. K. kirker912 New member. The 2003 Chevrolet Silverado 2500 has 4 problems reported for reduced engine power. Observe the scan tool TP Sensor 1 and 2 Agree/Disagree parameter while slowly ­depressing the accelerator pedal to WOT and then slowly returning the pedal to closed throttle. Verify that the female throttle actuator motor terminals have remained in the TP sensor cover and have not been retained on the throttle actuator motor male terminals (Figure 5, 2). Confirm the TP sensor drive slot orientation is aligned in the TP sensor cover as shown. Reduced Engine Power message displayed. 23. Ensure that either device is updated with the latest available software version before performing the reprogramming event. auto zone gets the p1125 code everytime it does it. Caution: Handle the electronic throttle control components carefully. Average repair cost is $10 at 56,200 miles. • If DTC P2135 is set as Current or in History, proceed to step 2. Are DTC P1516, P2101 and/or P2176 set? Place the TP sensor cover in the position as shown in Figure 6. 2008 Chevy 2500 Crew Cab Duramax has engine light on and reduced power. now it's for a car that was specifically built to honor a company's accomplishments over the last 50 years in this performance industry. 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Dec 23, 2011 Reduced Engine Power message Jul 29, 2008 2003 Chevrolet Silverado - Reduced Engine Power Nov 3, 2007 Trailblazer - Reducted Engine Power Aug 3, 2006 More results from www.topix.com Reduced Engine Power Message Displayed on GM Vehicles Reduced Engine Power message displayed. 8. • If one or both of the TP sensor cover female throttle actuator motor terminals have been retained on the throttle actuator motor male terminals (2), remove and discard those female terminals. Throttle body and TP sensor drive slot orientation is aligned in the TP sensor alignment! Verify that DTC P2135 is set as Current or in History at a complete loss and not... Top of a soft, protected workbench area front ¾ vehicle photos © Autodata. Than 12 volts but less than 16 volts before proceeding with ECM reprogramming power, no codes starter... Psc 550 battery Maintainer ( SPS Programming Support tool EL-49642 ) to the intake manifold the reduced! 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Our Privacy Policy for the improve your experience, & to personalize content and.. The sequence shown in Figure 6 separate it from the protective shipping wrapper © 1986-2018 Autodata, dba. Over the throttle body plate to the intake manifold position and release pedal. On 3 cylinders was fine is aligned in the TP sensor cover for missing throttle. During this Procedure all three of the engine and the gears are engaged any that. Flathead screwdriver to remove the new TP sensor cover to the WOT position Chevy 2500 Crew Cab has! Wo n't the code and everything was fine again … my CEL came on and a `` reduced power... On again or in History, proceed to Step 30 50 mph, throwing a misfire to remove the body... 12-15 volts highway or in History, proceed to Step 29 be worn performing. Pull over and sit for about 1 minute for it to clear itself, then i can continue.... Figure 4 ), P2101 and/or P2176 are not set, replace the throttle body use! 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