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JCH4 Regular Date registered: Jun 2010 Location: Charleston, SC Vehicle(s): 2003 G500, LR 1972 IIA, LR 1962 IIA, Husqvarna 350 Posts: 99 | G500 stumbling and cutting off at idle. Help. Please help. MY 2003 G500 keeps cutting off at idle,when going from stop at stop light, or when coming to a stop. Basically at coming to, sitting at, or going from idle. It always cranks back up no problem and no problem under accelaration at all. Car is showing no fault codes and my independent mechanic can't figure it out. He said maybe it was a fuel problem and to add HEET fuel treatment to it but that has not helped at all. I have 180,000 happy miles with it but this issue has got to be figured out. Your help is greatly appreciated. | ||
#240638 | |||
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DUTCH Administrator Doppelgänger Date registered: Apr 2006 Location: US, GA, Atlanta Vehicle(s): 2015 Audi Q7 3.0 TDI,2018 Sprinter Posts: 9963 | RE: G500 stumbling and cutting off at idle. Help. No DTC's using the STAR System or with a simple OBDII Reader? | ||
#240640 - in reply to #240638 | |||
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AlanMcR Expert Date registered: Apr 2006 Location: US, CA, Los Altos Vehicle(s): G300DT E300DT 230SL Posts: 3500 | RE: G500 stumbling and cutting off at idle. Help. Maybe the throttle body plate sticking when it is nearly closed? | ||
#240641 - in reply to #240638 | |||
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Floobydust Veteran Date registered: Mar 2014 Location: Massachusetts, USA Vehicle(s): 1995 E320 Cabrio, 2003 G500, 2000 SL500, 1980 TR8 Posts: 284 | RE: G500 stumbling and cutting off at idle. Help. Maybe the electronic accelerator position sensor is malfunctioning (e.g., the voltage value that it is providing when your foot is off the accelerator is too low). If you press slightly on the gas pedal can you get it to idle? | ||
#240642 - in reply to #240638 | |||
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JCH4 Regular Date registered: Jun 2010 Location: Charleston, SC Vehicle(s): 2003 G500, LR 1972 IIA, LR 1962 IIA, Husqvarna 350 Posts: 99 | RE: G500 stumbling and cutting off at idle. Help. DUTCH - 5/1/2019 7:25 AM No DTC's using the STAR System or with a simple OBDII Reader? No. Nothing at all. They cleaned the throttle body and still no help. | ||
#240646 - in reply to #240640 | |||
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JCH4 Regular Date registered: Jun 2010 Location: Charleston, SC Vehicle(s): 2003 G500, LR 1972 IIA, LR 1962 IIA, Husqvarna 350 Posts: 99 | RE: G500 stumbling and cutting off at idle. Help. Floobydust - 5/2/2019 3:36 PM Maybe the electronic accelerator position sensor is malfunctioning (e.g., the voltage value that it is providing when your foot is off the accelerator is too low). If you press slightly on the gas pedal can you get it to idle? It was only at idle before with the problem. Now it is happening under speed | ||
#240647 - in reply to #240642 | |||
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JCH4 Regular Date registered: Jun 2010 Location: Charleston, SC Vehicle(s): 2003 G500, LR 1972 IIA, LR 1962 IIA, Husqvarna 350 Posts: 99 | RE: G500 stumbling and cutting off at idle. Help. The shop cannot figure out what is going on | ||
#240648 - in reply to #240638 | |||
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JCH4 Regular Date registered: Jun 2010 Location: Charleston, SC Vehicle(s): 2003 G500, LR 1972 IIA, LR 1962 IIA, Husqvarna 350 Posts: 99 | RE: G500 stumbling and cutting off at idle. Help. Good news! Just got off the phone with the shop. They figured out it was the air flow sensor. It is now fixed and back to G happiness! Thank you for your suggestions. Dutch, I missed the DTC part but yes nothing showed up on the Star diagnostic. Edited by JCH4 5/3/2019 5:07 PM | ||
#240650 - in reply to #240638 | |||
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Floobydust Veteran Date registered: Mar 2014 Location: Massachusetts, USA Vehicle(s): 1995 E320 Cabrio, 2003 G500, 2000 SL500, 1980 TR8 Posts: 284 | RE: G500 stumbling and cutting off at idle. Help. Glad all is well now! It has been my experience with the M113 engine that MAF sensors are almost a maintenance item in that they seem to need replacing periodically. | ||
#240651 - in reply to #240650 | |||
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