2014 Chevrolet Utility enquiry

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Choppertjie

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Hello everyone. I am new to this forum business so please bear with me :)

I bought a 2014 Chevrolet Utility 1.4. When I start the vehicle, the motor gives a quick jerk and then the rev counter drops to “0” revolutions per minute. As soon as the rev counter drops the car stops to jerk. The car can still drive.

Fitted was an Anti-Hijack system. I had removed the anti-hijack on Friday as I thought this was the issue. The check engine light is still on. The guys whom removed the anti-hijack system said I need to take it for a proper diagnostic test as this will tell me exactly what the issue is.
A couple of weeks back we did run a basic diagnostic machine on the car and the error message was on the Heat Sensor or Heat Control Sensor.

Can any body please tell me what the issue might be and the steps I should follow?

Thanks in advance.
 
either
The timing is off
the anti hijack is not completely removed or damaged the wire harness
dirty injectors
plugs
throttle body sensor is known to give issues
Heat Sensor or Heat Control Sensor might effect the cold start and initiate the cold start function on a hot engine and over fuel.
 
qscwbt said:
either
The timing is off
the anti hijack is not completely removed or damaged the wire harness
dirty injectors
plugs
throttle body sensor is known to give issues
Heat Sensor or Heat Control Sensor might effect the cold start and initiate the cold start function on a hot engine and over fuel.
Click to expand...

Just to give you more info. It is not directly after starting the car. After driving for a couple of k's the jerk happens and the rev counter drops. When switching off the car I have to lock and then unlock the vehicle again for the rev counter to work again? After then starting the vehicle the whole process happens much faster than initially starting the car.
 
Choppertjie said:
Just to give you more info. It is not directly after starting the car. After driving for a couple of k's the jerk happens and the rev counter drops. When switching off the car I have to lock and then unlock the vehicle again for the rev counter to work again? After then starting the vehicle the whole process happens much faster than initially starting the car.
Click to expand...

That sounds exactly the way the anti hijack unit on my Corsa functions, that jerking is when it's cutting off the fuel, even though I have since removed mine I still remember this clearly as I had a horrid time with it after I bought my car.

Was your central locking not intergrated with the alarm and anti hijack?
 
Last edited:
your anti hijacking is not completely removed or dirty throttle sensor
 
Hi all

im need of advice on my utility 1.8 sport got 113K kms on clock bakkie got jerk when accelerating from low rev too overtake and even worse on incline, plug leads has been, coilpack been replaced services is up to date with REEDS also using GM plugs. So i was told its a burnt vavle worse case cenario from a Reeds Tech dunno if thats true coz diagnostic test was never done too confirm is there possibility that it could be one of the sensors?

TIA.
 
Choppertjie said:
Hello everyone. I am new to this forum business so please bear with me :)

I bought a 2014 Chevrolet Utility 1.4. When I start the vehicle, the motor gives a quick jerk and then the rev counter drops to “0” revolutions per minute. As soon as the rev counter drops the car stops to jerk. The car can still drive.

Fitted was an Anti-Hijack system. I had removed the anti-hijack on Friday as I thought this was the issue. The check engine light is still on. The guys whom removed the anti-hijack system said I need to take it for a proper diagnostic test as this will tell me exactly what the issue is.
A couple of weeks back we did run a basic diagnostic machine on the car and the error message was on the Heat Sensor or Heat Control Sensor.

Can any body please tell me what the issue might be and the steps I should follow?

Thanks in advance.
Click to expand...
Hi boss did you manage to sort out the problem with your bakkie bec I have the same problem
 
Clean the idle control valve and the intake, gunk from the PCV usually accumulates there causing such issues.
 
thechamp said:
Clean the idle control valve and the intake, gunk from the PCV usually accumulates there causing such issues.
Click to expand...
What I can't understand is why the rev counter drop to 0 then it's all fine and jerk is gone
 
thechamp said:
Then it drives fine for the rest of the day?
Click to expand...
No as soon as I want to start after I drove a nice distance it struggle to start but then it jerk immediately after that then I must wait a few minutes before it start normal and the process start all over again
 
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