What causes poor idle and stalling on a Silverado?
Carbon & varnish build up will cause poor idle. If after a cleanup you still have the problem have a tech check with a scanner. Engine hot in “D” IAC counts should be 15-30. Beyond the cleaning above, check for an air leak from either a vacuum hose off or a loose clamp, etc. between the airfilter box and the throttlebody.
What to do when your car engine is idling?
Idling issues can be frustrating, but with some patient troubleshooting, you’ll have a real chance at figuring it out. Remember to always check your engine idle with the air conditioning and defroster turned off, as both of these systems are designed to change the idle when they are on due to the demands they place on the engine.
Is there an idle air control on a Silverado?
Your truck doesn’t have an Idle Air Control since it has an electronically controlled, drive-by-wire throttle. One can get MAF cleaner at the auto parts store. Spray the tiny filament wires inside the MAF with the cleaner.
What does it mean when your car is stalling at idle?
Problems with idle speed —things like slow idle, fast idle, rough idle, or stalling after idling for a few seconds—are symptoms that something is wrong with your engine. These should be investigated, diagnosed, and repaired as soon as possible.
What’s the average idle speed of a Silverado?
In the last month, noticed that idle is lower than normal. In Park or Drive when stopped at a light, the idle gets pretty rough and stays around 300-400 or say and often stalls when turning a corner as well. Always have the A/c on as I’m in Florida. At speeds of 15 MPH up to highway speeds, all is good.
Why does my Chevy 6.0 stall out at low idle?
A poor idle sometimes happens after working under the hood as guys have a tendency to lean on the air intake piping pushing it down slightly. Which causes air to leak in around the clamps.
Your truck doesn’t have an Idle Air Control since it has an electronically controlled, drive-by-wire throttle. One can get MAF cleaner at the auto parts store. Spray the tiny filament wires inside the MAF with the cleaner.
What to do if your Silverado is stalling?
There is a small hole in the throttle plate spray it in there. Load the engine up with the stuff and shut it off. Hook every thing back up, wait about 10-15 min then crank it up and give it a ride. Listen to me I hvae been fixing these trucks with this idle stumble and a/c inop since the electronic throttle body came out on the trucks.