Lots of shaking
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Lots of shaking
My 2007 X with around 115000 KM started to shake when idle a couple of days ago. As soon as I start it up it shakes or when I'm at a red light. I can feel it through the drivers seat. My RPMs are stable and the same as usual, nothing weird happening there. Yesterday it was shaking so much when I first started it up in the morning that I heard something rattling from underneath the car.
A couple days before all this started I was experience really bad fuel economy, I don't know if that is related to this. What could be causing this?
A couple days before all this started I was experience really bad fuel economy, I don't know if that is related to this. What could be causing this?
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ITB11-018a ?
2007 – 2008 G35, 2008 EX35 AND 2009 – 2010 FX35;
ENGINE HESITATION OR STOPS RUNNING AT IDLE OR VERY LOW SPEEDS
APPLIED VEHICLES: 2007 – 2008 G35 Sedan (V36) 2007 G35 Coupe (CV35)
2008 EX35 (J50)
2009 – 2010 FX35 (S51)
IF YOU CONFIRM
The customer reports any of the following:
• Engine hesitation at idle or very low speeds,
and/or
• Engine speed drops lower than expected when decelerating or coming to a stop,
and/or
• Engine stops running at idle or very low vehicle speeds (parking lot maneuvers), but can be restarted.
NOTE: this incident may occur immediately after an oil change. ACTIONS
1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on.
2. If this bulletin applies, reprogram the ECM.
2007 – 2008 G35, 2008 EX35 AND 2009 – 2010 FX35;
ENGINE HESITATION OR STOPS RUNNING AT IDLE OR VERY LOW SPEEDS
APPLIED VEHICLES: 2007 – 2008 G35 Sedan (V36) 2007 G35 Coupe (CV35)
2008 EX35 (J50)
2009 – 2010 FX35 (S51)
IF YOU CONFIRM
The customer reports any of the following:
• Engine hesitation at idle or very low speeds,
and/or
• Engine speed drops lower than expected when decelerating or coming to a stop,
and/or
• Engine stops running at idle or very low vehicle speeds (parking lot maneuvers), but can be restarted.
NOTE: this incident may occur immediately after an oil change. ACTIONS
1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on.
2. If this bulletin applies, reprogram the ECM.
Is it a constant shake or comes and goes? My car would sporadically shake at idle when I had a vacuum leak. Do you have access to something that can show you real-time data?
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No I don't. What type of vacuum leak? Could you smell anything?
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Well, in my case there was a leak between my brake master cylinder and brake booster. This caused additional air to be sucked into my engine messing the fuel trims up. You don't really smell anything, but if your car runs with no loss of power it could be a vacuum leak.
You'd want to check your connections between the plenum, intake tube, and vacuum lines.
You'd want to check your connections between the plenum, intake tube, and vacuum lines.
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Well, in my case there was a leak between my brake master cylinder and brake booster. This caused additional air to be sucked into my engine messing the fuel trims up. You don't really smell anything, but if your car runs with no loss of power it could be a vacuum leak.
You'd want to check your connections between the plenum, intake tube, and vacuum lines.
You'd want to check your connections between the plenum, intake tube, and vacuum lines.
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