Problem > Engine surges between 1500 & 2000 revs after initial warm up. Check for codes - Nil. Cleaned throttle body & MAF. Checked for any vacuum leaks - Nil.
Hi, Because of all the work you have checked on the vehicle and it's rare, but you may have one off the engine mounts broken. IE: the rubber part connecting to your engine or chassis has come apart from the metal seal. Please send me feedback to [email protected] Thanks Malcolm Campbell.
SOURCE: High idle speed- Nissan N16 Pulsar/ Almera
Battery not charging well when airconditioner on ( also engine speed not increase when air conditioner on )
SOURCE: Chevy truck '02 surges between 45 and 55 mph
you should change the tps( throtal position sensor) this can cause that problem
SOURCE: Engine surge during warm up.
Try changing your PCV valve make sure the hose is clean and not full of oil. Also check the elbow end that goes to the intake they tend to collapse from oil saturation. Hope this helps.
SOURCE: code 23 engine idles but surges when in gear
Replace the Intake Air Temperature Sensor.
Depending on your size Engine (2.4L, 3.0L or 3.3L) It should be located where the Air Filter is. When you take the cover off, it wil be mounted into the cover. It has the only wires going to the cover.
This sends information to the Computer which adjust the air/fuel mixture - causing surges.
The 2nd recommednation: to remove, clean and check is the Idle Air Control (IAC) Valve and replace if necessary.
Let me know if this helped....
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