…competitively with models Ford Super Duty, and Ram HD. Incoming search terms: 2020 2500 gmc at4 high idle switch what is the rebates for chevrolet 2020 3500 high country trucks… Extremely High Idle 05 Chevy Impala. Maintenance/Repairs. kube212. July 4, 2016, 8:25pm #1. I have an 05 Impala with 3.4L engine. From start-up the engine idles as if ... Extremely High Idle 05 Chevy Impala. Maintenance/Repairs. kube212. July 4, 2016, 8:25pm #1. I have an 05 Impala with 3.4L engine. From start-up the engine idles as if ...

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There's one of two options to fix the high idle. 1) Take it to the dealership and let them do the 'idle learn reset' with the Tech II. or 2) Take the truck on about a 200 mile road trip. (Over that period of continous miles, the truck will relearn the throttle positioning again from what I've read through many threads.)
It could be your intake manifold gaskets are shot. This would alow for air to pass through your intake manifold where the intake meets the the rest of your engine causing a high idle how high of and idle depends how bad your gaskets are. Had the same issue I replace them (it was a pain in the ass) but it fixed the issue
The High Idle Switch, also known as the "Fast Idle System With Switch" in the manual, is described on page 2-25 of my 2008 Silverado manual. What manual do you have? The quote above is a direct copy of that information. I will be interested to learn how yours works.
The High Idle Switch, also known as the "Fast Idle System With Switch" in the manual, is described on page 2-25 of my 2008 Silverado manual. What manual do you have? The quote above is a direct copy of that information. I will be interested to learn how yours works.

Chevy high idle

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What do you mean high idle ? (what rpm), both answer's are correct. Your engine should idle high (1000 - 1200 rpm) until either the choke warms and shuts off the high idle cam on the carb or like stated you hit the pedal to reset the high idle cam. I am assuming your carb has an electric choke.
Nov 25, 2012 · ^^ +1 to disconnecting the battery. I had the same issue. Cleaned the throttle body and had high idle after. I didn't run mine without the intake though, didn't want to upset the fuel/air ratio by bypassing the MAF. So my idle was somewhere between 1000-1500 rpms. I unplugged the battery for a few hours and it dropped to around 800-900. There's one of two options to fix the high idle. 1) Take it to the dealership and let them do the 'idle learn reset' with the Tech II. or 2) Take the truck on about a 200 mile road trip. (Over that period of continous miles, the truck will relearn the throttle positioning again from what I've read through many threads.) I have a 96 s10 vortec that idles up when you are driving it and when you stop or push the clutch in it goes to 2000 for a few seconds then drops to normal ive replaced the tps when the check engine light was on it is now off and still idling high this is aggrevating but looks like a lot of...
Nov 18, 2008 · HelloCustomer. Your idle problem is not going to be found in the 0/2 sensors or circuits.The Powertrain Control Module controls idle speed as per inputs.A vacuum leak at the engine (anywhere on the intake & throttle body) & the air intake tube after the MAF will cause an uncontrolled idle.A scan of your computer system will help to diagnose this problem.An incorrect coolant sensor,air intake ...
Started right up but the idle is way too high. 1300 rpm's!! The curb idle screw is backed out as much as possible and the linkage cannot go any further forward. Rpm's stay up even after the choke is open. I sprayed wd40 around the carb base and intake manifold and found no increase in idle speed identifying a vacuum leak. I have a 96 s10 vortec that idles up when you are driving it and when you stop or push the clutch in it goes to 2000 for a few seconds then drops to normal ive replaced the tps when the check engine light was on it is now off and still idling high this is aggrevating but looks like a lot of... Discover Chevy Performance Crate Engines from small and big block V8 to the high-performance LSX series and find options for all your project cars. Important: During the drive cycle the check engine light may come on with idle speed DTCs. If idle speed codes are set, clear codes so the ECM can continue to learn. If the engine idle speed has not been learned the vehicle will need to be driven at speeds above 70 km/h (44 mph) with several decelerations and extended idles. 7. Hows do I fix the high surging idle on my 2000 chevy silverado? I know this sounds nuts but I just did this to my Granddaughters truck and it works. Turn the key off open the door for 90 seconds close the door turn the key on but do not start the truck, press the gas pedal to the floor three times and shut the key off and wait 10 or 15 seconds ... Nov 10, 2017 · My Chevy S10 4.3 truck has the service engine soon light. I think because it's idling high and I'm constantly putting gas in it. I changed the cap and rotor. I'm thinking it's the throttle body gasket but before I poor anymore money in it. I need to find the problem. Please help. Shop says it's the ECM. I don't think it is though. Dealer added the high idle switch option to my 2018 Sierra HD. Just asked service manager and he called GM for a reflash code. The did charge me $160 but it was the only option that the truck did not have that I wanted.