Questions & Answers for: causes engine idle surge

...engine, hold the idle high so the engine won't stall, then spray the can of cleaner into the intake while keeping the engine running, use at least 1/2 the can, shut down the engine and disconnect the ...

BVSV is to do with the brake vacuum servo unit, then yes, it could easily be the cause of the high idle speed. This will cause the engine to run lean too, and admit dust and particles into your engine

...idle engine surges at idle and bogs until about 5 k rpms are reached ,if you push throttle to about passing gear than it takes off like a shot ,,how ever you can;t drive in town like this (which ...

...causes the engine to have surges when idle hot engine or cold, or both??????????????????? surging or hunting idle is complex but for sure the ECU has lost control of idle speed , there are 2 macro ...

...idle up and down HOT ENGINE? (ill guess hot) idle surges.(hunts) (very simple reasons or very hard to find. the car has 2 engines. G16A and G16B they work totally opposite, (8valve and 16v) the vin ...

...causes. 1: engine running why lean causing PCM to hunt correct rpm. 2: engine ECU in limphome mode, causes loss of idle controls. 3: engine never gets fully hot, and the thermostat is bad. and lots ...

...causes the surge as well, along with the knowledge that the engine was recently replaced, I'd be looking for a vacuum leak somewhere. If you had the engine installed by a reputable shop, you should ...

...the engine or even a service light. Could this cause the surging at idle? No, remove and clean or replace the IAC valve...use trottle body cleaner or brake cleaner..IAC means Idle Air ...

...idle and power surges. A diagnostic scan of the engine management system should be performed to identify the issue. Exhaust restriction: A restricted exhaust system can cause a rough idle and power ...

...causes for this issue: Engine Load: The A/C and heat systems place an additional load on the engine, especially when the compressor engages. This extra load can affect the engine's idle and cause ...