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Hunting in idle for astra 1.4H 2005

Electronics fault and hunting at idle

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Saturn Astra Fluctuating Idle at stops, intermettant problem?


possible vacuum leak
could be a vent control hose under the dash, transmission actuator hose, brake booster leak, manifold leak
run the fault codes to find the sensor that is reporting the fault

Feb 21, 2017 | Saturn Astra Cars & Trucks

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Fiat sienna rough idle


bad fuel filter, clogged injector possible bad plug-plugs. check air cleaner is new not clogged lacking air at idle can be caused bt this also.

Mar 24, 2014 | 2005 Fiat Siena

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My Astra CDTi has cut down to tickover and will not rev on throttle fault spanner comes on . It has happened before but cleared by turning ignition off and restarting. Tried this but no joy


run fault codes and check for accelerator position sensor and other related faults. Faults have to be physically fixed so turning the key off and on will do nothing to fix a problem

Dec 23, 2013 | 2005 Opel Astra 1.7

2 Answers

1999landrover freelancer...motor hunting in idle...rev counter goes up to 2 and a half in idle...revving....motor cuts out while driving


The following are the general instructions on the start of diagnosing any electronically controlled engine or transmission problem.

The engine and the automatic transmission (transmission control is only for automatics, engine is still computer controlled no matter the transmission type) in this vehicle are computer controlled and in most cases when a fault occurs a fault code is stored in the memory of the computer control module. There are exception to this, such as the Mass Airflow Meter and fuel pressure problems. What must be done is to have all the basic testing done such as a scan of the system for fault codes as well as a check with a live data scanner tool for engine functions that are not within range of normal, a trained technician is required to know what is correct and what isn't, then based on careful diagnostics done from a factory repair manual the correct part is replaced or the wiring repaired or the computer replaced (known as the PCM), which is very rarely the problem. Other basic checks must be done as well such as mechanical problems with the engine as well as engine state of tune and mileage on the engine. The transmission can have mechanical issues as well such as no gear engagement at all or a failed pump or other pressure related problems. Also engine mechanical problems ca cause many drive-ability related problem such as rough idle and other symptoms




Oct 22, 2012 | Land Rover Freelander Cars & Trucks

1 Answer

My car keeps revving whilst sitting idle how can i fix this?


could be airflow meter fault or throttle potentiometer should see check engine light flashing if either of these sensors are bad, they can effect idle and engine performance.

Aug 28, 2012 | Cars & Trucks

2 Answers

Vauxhall astra 1.4 16v Idles fine but will not rev


Some cars with an ecu have a default setting whereby they run but only at idle. Go to your local Vauxhall dealer, look sweet and ask the service people if they can offer any idea, I mean the mechanics not the counter staff who generally don't know a handbrake from a halfshaft.
Or go on line and scour the astra owners helplines to see if its a common problem.
Don't spend a penny in a garage without checking all possible areas first. Like the other answer, it may just be a cable or electrical plug come off.

Aug 17, 2012 | Vauxhall Astra Cars & Trucks

1 Answer

Igot a vauxhall astra 1.8 sri igot a light cum on the dash its a car with a spanner threw it when on the engine idles bad


This is your mechanical fault light and the lack of power is the car going into limp mode to protect the engine and its components.
Have a garage run a diagnostic check to find the fault code and the fault.
Hope this helps

Apr 18, 2012 | Vauxhall Astra Cars & Trucks

1 Answer

Will not idle at one speed wants to surge and hunt around


check the ohm rating on all plug wires. They average 28,000 ohms per foot. Of course a bad spark plug can be at fault to. These two items will cause your tack to fluctuate or hunt while idling

Feb 06, 2010 | Chevrolet C1500 Cars & Trucks

2 Answers

E46 2000 318i hunting on idle


Clean or replace idle control valve.

Jun 29, 2009 | 1999 BMW 318 ti

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