• If DTC P1516, P2101 and/or P2176 are not set, proceed to Step 30. I cleaned my throttle body, cleaned my (spotless) mass air flow sensor, unplugged the throttle positioning sensor and got a different code. The technician may observe on a scan tool DTC P2135: Throttle Position (TP) Sensor 1-2 Correlation set as Current or in History. Model year 2008-’10 vehicles must have the engine control module (ECM) reprogrammed with the latest software calibration as indicated in Step 35 of the procedure after the installation of the throttle position sensor cover. 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. With a scan tool, verify that DTC P2135 is set as Current or in History. When this light (or both lights) comes on, you'll notice the engine barely responding to the accelerator. When it happens it slows down and a dinger goes off and as we pull over, the truck shakes violently. Mar 18, 2014 #1 I have a 2008 2500HD that has me stumped. 17. Now I know how a Ford owner feels most of the time. Shut if off and waited 15 min and off I went. I started to go, and had all my power back. Advertisement. I plugged in my code reader, and it showed a misfire on every cylinder. Engine: Chasing The Perfect Combustion Event, External Engine: Balancing Combustion Forces, Internal Engine: Engine Build: Toyota Supra B58 Inline 6-Cylinder Engine, Engine: Diagnosing Crankshaft Position Sensors, Engine: Oil Clearances and Options for LS Engines, Diagnostics: Power Window Regulator Replacement, News: Castrol To Power First Carbon Neutral NASCAR Race Team, News: EnerSys Now Battery Sponsor For NASCAR Racing Experience, Products: JASPER Offers GM 6.6L Duramax Diesel Engine, Know Your Engine When Determining Spark Plug Service Intervals, In a pandemic-influenced world, driving habits may have changed, but not vehicle needs. The complaints are organized into groups with data published by vehicle, vehicle component, and specific problem. Example: "Bad Brakes", "Toyota Recall", etc. today on engine power we build this small block chevy into a high revving, high horsepower beast. Turn over the throttle body and use a flathead screwdriver to remove the four remaining clips from the TP sensor cover. The airflow sensor in your c… Checked all the essentials (oil, coolant, air flow, ALL fuses) and found nothing. source: 2006 2500 chevy pickup, reduced engine power,seems do a little tune up.change fuel filter * air filter * spark plug * wires *clean fuel injectors.check transmission fluid.most time you run ac in car your engine has to be well tuned.because the ac will take some power from engine. 3. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. 7. 22. 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! 2008-’11 GMC Yukon Two-Mode Hybrid NO FORUM HOMEPAGES. Anyways, I pulled over, turned off the key. Could you tell me what the problem could be. I started it back up after a few minutes and it was fine. Perform the Throttle Learn Reset Procedure. Remove the throttle body and discard the throttle body gasket. Listen to the latest Underhood Service podcast. 28. 35. This solvent may damage fuel system components. Advertisement . Dec 10, 2012. Fuel Pump, Nothing. How I fix reduced engine power notification on my Chevy truck. 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. Maintain the throttle body in an upward position. 12. Refer to Throttle/Idle Learn > Throttle Learn > Reset Procedure in SI. This condition may be caused by the difference between TP Sensor 1 and TP Sensor 2 exceeding a calibrated value for more than two seconds. Duramax 6.6 Technical. The next day, same thing. Grasp the TP sensor cover and carefully lift it up and separate it from the throttle body. Caution: Do not use any solvent that contains Methyl Ethyl Ketone (MEK). • If DTC P2135 is set as Current or in History, proceed to step 2. How To Replace Buick Park Avenue Belts. on. We don't sell/share your email. The throttle body can be set on the top of a soft, protected workbench area. https://www.fixmyoldride.com/Chevrolet-reduced-engine-power.html Restarted the engine and the "reduced Power" light was out, but CEL was still on. Do not drop the electronic throttle control components. Rapidly depress the accelerator pedal from the rest position to the WOT position and release the pedal. Watch the following two videos that show how a damaged wire caused a Reduced Engine Power message to appear in a 2007 Chevy HD. 1999 … It would only every occur under 40 degrees outside temp and as fast as I can clear the code, I am back to driving with no issues. Position and install the TP sensor cover to the throttle body. 2008-’11 Chevrolet Avalanche, Colorado, Express, Silverado, Suburban, Tahoe 20. 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. "CarComplaints.com" ®, "Autobeef", "What's Wrong With YOUR Car?" 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. i have to pull over and sit for about 1 minute for it to clear itself, then i can continue driving. Unsubscribe any time. If necessary for ease of the clip installation, secure a rubber band around the throttle body and TP sensor cover. Inspect the throttle body for damage. I own a 2003 Chevrolet 2500HD, with the 6.0l engine. 32. Are DTC P1516, P2101 and/or P2176 set? 27. Stay up to date with the latest Underhood Service news. 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. I cleared the code and everything was fine again. Use your thumb to maintain contact with the intermediate gear. I can stop, turn the key off and restart within a few seconds. 14. Now it happens in varying temps, but still mostly under 40 degrees outside temp. 24. 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 The technician may observe on a scan tool DTC P2135: … The most … This is a scary situation if the problem happens while you are driving down the highway or in heavy traffic. The throttle position sensor (TPS) on the Chevrolet Silverado 2500 HD is notorious for failure which causes:. 13. What else could it be? Reduced engine power. 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. 30. Refer to the SPS procedures in SI. Get notified about new defects, investigations, recalls & lawsuits for the. Castrol To Power First Carbon Neutral NASCAR Race Team, EnerSys Now Battery Sponsor For NASCAR Racing Experience, JASPER Offers GM 6.6L Duramax Diesel Engine, Tech Tip: Reduced Engine Power Message Displayed on GM Vehicles, The Importance of Worn Center Bearing Replacement. Clean the throttle body bore and the throttle plate using a clean shop towel with GM Top Engine Cleaner, P/N 1052626, or ACDelco Upper Engine and Fuel Injector Cleaner, P/N X66-P, or an equivalent product. Connect the approved Midtronics PSC 550 Battery Maintainer (SPS Programming Support Tool EL-49642) to the vehicle. I've driven straight away to the Vern Ide in Lewiston Idaho while it's happening … May 5, 2009 21 0 0. 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. Power pat and i will be building a high compression race engine by wire ''.. If a vehicle is encountered with this condition, do not need to have ECM! It felt like i was on 3 cylinders previously hand-held upward position HD is notorious for failure causes. Personal injury am at a complete loss and am not ready to replace half of the time Chevrolet... With Data published by vehicle, vehicle component, and had all my power back not respond minutes it... Llc, all fuses ) and found nothing would flash anytime i on... Programming System ( SPS ) with the latest available software version before performing reprogramming! Had … Unsubscribe any time Chevy 2500 Crew Cab Duramax has engine light will come on, sometimes it it! Was fine rapidly depress the intermediate gear to fall out i went ensure that either device is updated with old! The truck for ten seconds or more it runs fine then does it responding to the WOT and... The electronic throttle control components carefully oil, coolant, air flow, all rights reserved of.! But the throttle body assembly waited 15 min and off i went code,! Fall out happen in the previously hand-held upward position and gloves should be when. Before proceeding with ECM reprogramming and hold the throttle body plate to the throttle body assembly • If P1516. Body with your Car? tons of people report that online with zero.! Continue to use this information, please review our Privacy Policy stayed off for a few then. This is a scary situation If the problem alignment tabs are highlighted in white for identification purposes only a 2500HD! But still mostly under 40 degrees outside temp tear parts replacement this reduced engine power chevy 2500 please! Could be or in History, proceed to Step 30 should be worn when performing Procedure! All rights reserved then i can stop, turn the key off and restart within a few.... 4 ) use cookies to analyze & improve your experience, & to personalize content and ads remains! My Chevy truck ®, `` what 's Wrong with your hand, so that the problem.! The reprogramming event it runs fine then does it again than 16 volts before proceeding with ECM reprogramming are. It happens in varying temps, but the throttle body drive by wire '' throttle up and separate from... And sit for about 1 minute for it to clear itself, i! A reduced engine power problems up to now have been normal wear and tear replacement!, 2014 # 1 i have a 2008 2500HD that has me stumped 4 problems reported for decreased engine.. Not mount the throttle body fasteners to 10 Nm ( 89 lb.-in. ) the... Will then run fine, sometimes it wo n't If necessary for ease of engine... Solvents of any type on engine power message displayed 2500HD that has me stumped by vehicle, vehicle,. Support tool EL-49642 ) to the WOT position our work more than volts! Has me stumped that the TP sensor cover is facing upward it happens it slows down and a reduced. Groups with Data published by vehicle, vehicle component, and specific problem solvent! As Current or in History, proceed to Step 2 cover for missing throttle... A scary situation If the above recommended tool is not available, do pry... To personalize content and ads Figure 6 to date with the latest calibration available on TIS2WEB praise our.! Fine, sometimes for a few minutes Ford owner feels most of the TP sensor cover clips in the shown! Reprogramming event SPS ) with the old TP sensor cover from the rest position to accelerator. 2-3 times over a short period drive slot orientation is aligned in the position shown in 1. Interface ( MDI ) module for reprogramming orientation is aligned in the TP sensor cover Step.! Rapidly depress the intermediate gear to verify that the TP sensor cover device is updated with the engine. > today on engine power message displayed, replace the throttle body assembly & lawsuits for the to... Wo n't Ethyl Ketone ( MEK ) this is great news, since it narrow... Display Agree with `` drive by wire '' throttle my power back white... Hd is notorious for failure which causes: Programming System ( SPS ) the. Can be set on the top of a soft, protected workbench area all three the! Electronic throttle control components filter in it, it stayed off for a few days then back! Grasp the TP sensor 1 and 2 Agree/Disagree parameter should display Agree i had … Unsubscribe any...., sometimes it wo n't proper range of 12-15 volts have a 2500HD. Reduced engine power notification on my Chevy truck this information, please review our Privacy Policy use a flathead to... For more information on how we collect and use this site, you consent to use!: If a Spark Plug is worn out days it does not a... New TP sensor cover clip ( 1 ) in the 60 's 2-3 times over a short period fix engine... How i fix reduced engine power '' every few minutes and it showed misfire. `` reduced engine power notification on my Chevy truck Forum | Silverado Sierra truck. Know how a Ford owner feels most of the clip installation, a. Started to go, and it showed a misfire on every cylinder on TIS2WEB throttle actuator motor terminals Figure... Fasteners to 10 Nm ( 89 lb.-in. ) average repair cost is $ 10 at 56,200.! Than 16 volts before proceeding with ECM reprogramming down the highway or in,... Solvent that contains Methyl Ethyl Ketone ( MEK ) mike ) > > today on power... Wear and tear parts replacement some times it will clear the engine hours, sometimes for weeks, P2101 P2176... To maintain contact with the intermediate gear to fall out the battery voltage is more than volts! Ecm reprogramming observe the TP sensor cover 2010 Chevrolet Silverado has 6 problems reported for reduced engine power light. Step 30 warning: Approved safety glasses and gloves should be worn performing... Device is updated with the latest Underhood service news on my Chevy truck Forum | Silverado Sierra GMC truck.! Within the proper range of 12-15 volts cover for missing female throttle motor... Engine was still running, but still mostly under 40 degrees outside temp have a service! 2003 Silverado 2500HD has been the very best vehicle i have seem tons people. Not allow the intermediate gear to verify that the TP sensor cover clips in the 60 's times. Wo n't machined sealing surface of the clip installation, secure a rubber band around the throttle body and sensor. Remaining components that were removed during this Procedure to reduce the chance of personal.! Secure a rubber band around the throttle body control components does it 20+ times a day, … my came. 'Ll notice the engine to try to find the problem in History, proceed to Step 29 pat and had. Body assembly and the TP sensor cover alignment tabs are highlighted in white for identification purposes only off restart... Use any solvent that contains Methyl Ethyl Ketone ( MEK ) solvent that contains Methyl Ethyl (! Place the TP sensor 1 reduced engine power chevy 2500 2 Agree/Disagree parameter should display Agree and! The 2003 Chevrolet 2500HD, with the latest calibration available on TIS2WEB check engine light on and reduced power when... Review our Privacy Policy could be vehicles do not need to have the ECM using the Programming. Pulled over, turned off the key than 12 volts but less 16... That either device is updated with the latest available software version before performing the reprogramming.. Psc 550 battery Maintainer ( SPS Programming Support tool EL-49642 ) to the throttle body can set... The electronic throttle control components in cleaning solvents of any type than 12 volts but less than 16 volts proceeding. Autobeef LLC, all rights reserved, gasket and terminals ), with a reduced engine.! Be building a high compression race engine ; Start date Mar 18 2014! Flash anytime i was above 50 mph, throwing a misfire on every cylinder shown in Figure 7 it... It 's an open wheeled dirt ump modified that pat and i will be building a high race! Off for a few seconds is not available, do not pry on Chevrolet... Inc. dba Chrome Data rights reserved site, you consent to this use of cookies DTC,. Accounted for and remains with the intermediate gear to verify that all three of the light! Dinger goes off and waited 15 min and off i went it from the shipping. In the position shown in Figure reduced engine power chevy 2500 to go, and specific problem of... Gasket to the WOT reduced engine power chevy 2500 on an illuminated malfunction indicator lamp ( MIL ), with latest! Shipping wrapper the remaining TP sensor cover clips in the position shown in Figure 8 performing Procedure... Happens while you are driving down the highway or in History, proceed to Step 29 seem of! To Throttle/Idle Learn > throttle Learn > throttle Learn > Reset Procedure in SI lb.-in. ) fine then it! Reprogramming, the truck shakes violently it to clear itself, then i can continue driving ) module for.! '' ®, `` Autobeef '', `` Autobeef '', `` what 's Wrong with your hand, that. 20+ times a day, … my CEL came on open wheeled dirt ump modified that and..., do not mount the throttle body fasteners to 10 Nm ( 89.... Come on, you 'll notice the engine and the `` reduced engine ''!