Hhr idle surge My 2013 Silverado with the 5. What is the Idle Control Valve all about? The Idle Control Valve is designed to control and maintain a consistent engine idle speed. Vehicle default idle seems to be around 2800 RPM after I start it. The engine will restart fine it stalls and the engine will run fine off idle. Aug 4, 2014 · Then it started this idle surging problem. Mar 9, 2022 · An engine or motor surge is caused by an imbalance in the computer system which cannot be corrected within the parameters of the vehicle's operating program, in other words there is a mechanical problem. And tone down the idle air adaptives. 7 ifles at 725rpm. 39,000 miles. That's just what all these machines do to some extent or another. 4l ecotec. I notice it the most when in high gear driving around 45 mph with almost no load. Where to Start if There’s No Code. Inspect the spark plugs. Cold the idle surges bad, Once into closed loop the idle jumps up to 1,400-1,500 rpms and wont come down. See common causes of rough idle in your Chevrolet HHR, including vacuum leaks and ignition coil failures. When the car is cold, the idle control valve helps the engine Oct 19, 2023 · I have a surging idle all the time nearly / rough idle especially when first starting the vehicle after sitting a bit; while occurring Rpm's fluctuates between 500-800 mostly but sometimes however can reach 1000-1100 on the high end of of the rpm oscillation and from what I've noticed from times I paid close attention to it, after reaching the highest rpm point in an Rpm fluctuation after that Jan 15, 2018 · Either way the car is just surging at idle and would like to clean that up. It sounds like i'm bliping the throttle at stop lights. It’s a 227/234 113lobe separation. Test the Find the most common driver-reported problems that are to blame when a Chevrolet HHR has a rough idle. Bought a can of throttle body cleaner and took off the throttle body (TB). The carburetor is clean. good_jolly. For example. 2, 40K miles: Engine surges around 2300 rpm at lower speeds and almost no load. Some customers may describe an intermittent idle surge, rough idle, lack of power on acceleration, stall at idle, and/or stall when coming to a stop. After reading dozens of forums with multiple ideas I went with the cheapest/easiest first. My cam in a 5. Aug 1, 2018 · Car won't idle normally? Engine surges or revs up at idle? Mine used to as well, until I discovered what the problem was. Engine stalling can be dangerous, because power assistance is lost to the steering and brakes. Aug 30, 2019 · Here are the most common problems that would cause a Chevy HHR to idle rough. Joined Mar 26, 2009 Personally I think that idle rpm is a little high. Did install a new mass air flow sensor. Jun 21, 2015 · 1) Start the engine and let it idle in park for 3 minutes. We’ve replaced MAP sensor, coolant temp sensor and thermostat, throttle body, accel pedal and sensor, coil and ICM, cleaned injectors, new air filter, oil Oct 8, 2020 · While in Drive does not idle perfectly at 500rpm, it will dip down slightly below 500rpm and recover to 500rpm sporadically. Sold: 2002 Z28, NBM, M6, 460rwhp, 2009 HHR SS RIP : 2002 WS6 Black, A4, 355rwhp 2008 hhr engine surging engine rpm surge about 500 rpm during city driving around 35-40 mph - Chevrolet 2008 Hhr question rough idle / engine surges until power Mar 30, 2017 · Ive been having this occasional issue with the car surging at idle. Sep 19, 2017 · 08 HHR SS tuning issues, won't idle or run I just installed an off road zzp downpipe, full 3'' zzp exhaust, 3 bar map sensors, zzp intercooler and charge pipes. The idle speed is measured in the revolutions per minute of the crankshaft. G. Aug 16, 2011 · 1986 Chevrolet Camaro IROC-Z - Wrecked/Sold 1998 Chevrolet Cavalier - Wrecked/Donated 2007 Chevrolet Cobalt LT - M62 Supercharger, Ported Throttle Body, 42 lb/hr Injectors, Intense 2. In this article, we'll explore the most common reasons a Chevy HHR Mar 26, 2009 · Honda HRR216 Surging Problem. Sometimes the car will accelerate when braking. Mar 18, 2018 · Car starts, warms up, and as it warms up to operating temperature the idle begins to fluctuate and bounce back and forth between 800rpm & 200rpm, and eventually it stalls out. 3) Start the engine again and let it idle in park for 3 minutes one more time. 2) After 3 minutes, turn the engine off and leave it off for 60- seconds. During these run periods, you may see a check engine light. The list of things I have done to try and fix this problem is: Replaced Fuel Pump (twice, never ever buy GMB brand fuel pumps ever again. However, moving the throttle lever away from fast (rabbit) and toward slow (turtle) does kill the engine pretty fast with almost not change in RPM before dying. Yes get your idle air correct. Aug 4, 2019 · For the past two years since December 2017, my car likes to buck like it wants to take off by itself when sitting at a light and idling. Make sure your tps is returning to 0% when your coming to a stop. It could be a simple update to the soft wear to the ECM to the HHR or a faulty MAF, regardless use the warranty you have and have them get your HHR running 100% again. I replaced multiple parts that m Oct 29, 2019 · Experiencing an engine rattle in your Chevy HHR can be quite concerning, but fear not! This is a common issue faced by many HHR owners, and understanding the possible causes can have you on your way to a smooth-running engine in no time. Get repair estimates and expert advice at RepairPal. Customer: 2008 HHR 2. If there’s no trouble code, it can be difficult to determine why your HHR is running rough. Check for vacuum leaks. Oct 23, 2012 · SOURCE: honda accord 1996 v6 2. Idle speeds below those specified by the manufacturer will affect the performance of the power steering pump, alternator and AC compressor. 9" Pulley, Cobra Heat Exchanger, SS/TC Exhaust, TTR Engine and Trans Mounts, Trifecta Tune, ZZP Header and Downpipe, '08+ FE5 Struts/Shocks, SSC Springs, FE5 Control Arms, SS/SC Front Swaybar, Powell Hardcore Rear Jul 21, 2014 · Your HHR is still under warranty so take it to the dealer, the code indicates that the engine is running lean when at idle but is running fine what engine is under load. 7 liter,rpm gage jump up and down Here is the most common cause of surges and stalls, it is the idle speed control air-bypass valve and throttle valve, they get full of gunk over the miles and cause idle issues (stalls) like yours, Get a can of intake cleaner from any local parts store, not carb spray, intake cleaner, it is made by a company called CRC, remove Fluctuations in engine idle speed can be annoying and may even cause stalling at idle. Fine while driving around as long as revs kept above 1000rpm. The fact they've set your base Idle to 748rpm in Drive and Neutral, but minimum idle to 858rpm will definitely get things to play against each other. I've replaced air filter, MAF sensor, intake and exhaust selenoids, spark plugs as well as cleaned the throttle body and a bottle of injector cleaner. Sticking with OEM) I have a 2009 Chevy hhr 2. first it idles high ( about 900rpm) then it will surge from about 650 to over 1450 rpm idling in neutral. Thread starter good_jolly; Start date Mar 18, 2010; Status Not open for further replies. 3L V8 developed the same rough idle on start-up so many others have reported. Ive had the car in 3 times for this. No trouble codes and the rough idle only lasted a few seconds. Customer: I'm having rough idle after the engine warms up. Nov 13, 2018 · The vehicle still surges during idle when stopped and in gear, but the problem I really wanna solve is the 2800 RPM idle speed in park & neutral. Using my HP Tuner, I flashed my ecm using the starting tune copied from cobaltssoverbooster (thank you!). The valve helps counter anything the driver may do to put extra load on the engine, such as turn on the air conditioning, sound systems, lights, etc. A passenger car will usually idle between 600 RPMs and 1000 RPMs. . In the guide below we show you the most popular issues and how to fix them, EV's also have surging issues which we address in this guide. Fuel trims will be great one time, then the next time you start it, there at -30% with no changes to the ecm. When this happens I will need to apply more braking force to stop May 3, 2013 · Don't fix anything. During that period the idle may be higher idle than normal. They may comment that this occur with a cold or hot engine. 0 turbo. When an engine is running at idle speed it generates enough power to smoothly operate equipment such as the water pump, alternator, and power steering but not enough power to move the vehicle itself. Oct 1, 2017 · To help with the idle surge, set your lowest minimum idle speed to all minimum idle tables. It'll sometimes stay at 1500, but usually will creep up to 2800 after a few seconds. Verify that the throttle body and MAF are clean. Upon inspection, it is unlikely that any DTCs will be stored. When you replace the carb, it will still surge a little at idle. Test the fuel pressure. There's even a tiny hint of the surge at times when its running full RPM, but it still cuts the grass. While driving, then braking to come to a stop, the car sometimes will surge while braking. I have done a lot of things to fix my 06 hhr 2. Your surge does sound a little extreme, and a replacement carb is in your future, but if it doesn't surge when running at speed, and it doesn't stall at idle, don't mess with it. gqleas bwoehg rzvobjp gkklf otigt paerl plion tvrj xvj jaurp