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I have a Naza Sorento EX model 2.5 diesel bought in July 2010. When I release pressing the accelerator and slow down the car say coming to a traffic light junction (engine rpm is down to about 950-1000 rpm), the car engine is accelearted to about 1,200 rpm while I press on the brake pedal. I have to press hard on the brake pedal to keep the car stand still and the engine is still running at about
This problem does not occur very often. Sometime, once in 2 weeks
or even in 2 months.
I have send the car back to the service center to rectify
the problem but not solved.
Anybody encounter this problem ? Please advise.
Thank you for your invaluable info. I will share this info with the technician. Can
you a little bit more specific what the technician need to do to rectify this problem.
Thanks a lot.
04SorentoLX, TQVW, I had send my Sorento to the service centre and left it there for 4 days to check up. Technician confirmed that the vehicle was in order. He suspected that the problem was due to Accelerator Position Sensor (APS) as it had been shifted to the left that is a Left Foot Accelerator due to my physical disability. (APS socket, 6 wires was cut and extended by about 18 inches.) Now, the technician opined that electronic signal stability was affected due to the lengthen wire. When the vehicle was scanned, the error code appeared indicated there was a problem with APS.
The reasons given were, when the brake pedal is pressed, vacuum in the brake booster was used up and the alternator started to generate more air that lead to the runaway engine RPM's because signal from the APS was not transmitted properly to the ECM etc. (something likes this). 04SorentoLX, what do you think ? Is the lengthen wire cause all the problem ?
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