What does high cold idle, surging warm idle mean?
High Cold Idle, Surging Warm Idle: Four Cylinder Two Wheel Drive Four cylinder two wheel drive manual 170,000 miles. Hello, the truck has a 22r-e engine and recently I installed a new head, cam, timing cover, and water pump. The problem is that when the engine is cold it idles very very high, and when the truck warms up the idle will surge.
Why does the idle surge when in neutral?
This went away the next day or so, but every time I’ve made that 4 hour drive, it happens for longer and longer each time. Now its really bad, and on top of the idle surging while the brake pedal is pressed, it ALSO idles really really high when in neutral and even sometimes surges but in fewer intervals when in neutral.
What to do when idle surges like crazy?
1. Warm up the engine completely. 2. Remove the intake boot at the front of the TB (throttle body). 3. Duct tape the big hole shut on the lower right hand corner in front of the TB plate/butterfly. Please make sure you clean where your gonna tape so the tape doesn’t get sucked in. 4. Connect the boot back.
What does it mean when Toyota pickup surging idle?
They are activated by coolant temp to open and close for quicker warm up. When they stick then you get this surging up to 1400 RPM or so then a rapid drop in RPM’s and the cycle continues as long as you are on the brake pedal! In other words it’s the IAC that’s bad. 7 people found this helpful.
Why does my car idle at 1500 revolutions per minute?
Older cars will try to compensate for worn spark plugs or a failing ignition coil by increasing the engine idle. An engine with a problem that is idling at 1500 revolutions per minute is far more likely to stay running than the same engine trying to idle at 800 RPM.
What causes high idle on a Nissan truck?
You can usually figure out what’s causing a high idle problem and estimate the cost before you open your wallet. Often it’s as simple as tracking down a vacuum leak, which is far cheaper than replacing your car’s engine control unit (ECU). This question came from a reader who owns a 1997 Nissan pickup truck.
What does it mean when your engine idle is too low?
If your idle is too low, it could be the IAC not talking to the computer correctly. Disconnect the IAC connector for a couple seconds while your engine is idling. If your engine idle didn’t change, you can suspect it to be the IAC. If it is working properly, unplugging it would cause your idle to freak out.
What to do about warm idle on 4 wheel drive?
Clean out around the butterfly in the throttle bore with carburetor cleaner and a rag. This should help stabilize the idle. There is also an idle air screw on top of the throttle bore, try screwing it in half turn at a time to see what happens.
What’s the difference between high idle and low idle?
Step by step automotive repair guide on how to troubleshoot and fix an engine that is idling high (fast) or low (slow). (Note: The engine idle speed is controlled by the computer and is NOT adjustable.)
How can I check the idle air control?
To perform a rough check of the idle air control, remove the valve while reconnecting the wiring harness. While observing the valve with a flashlight, turn the key to the “ON” position, (DO NOT START ENGINE.) the valve should move slightly.
Is there a 22R / 22RE engine ready to ship?
Jim builds engines specific for each customer, so we do not have engines on a shelf ready to ship. Quality engine building takes time. Our version of a stock replacement 22R / 22RE. Built with the same attention to detail as any of our engines. No corners are cut. Designed and built to get the most out of your stock fuel system without sacrifices.