Idle fluctuations
10-17-2018, 12:59 PM
#2
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Battery doubtful. Intake leak possible. It might help a bit getting an intelligent answer if we had a clue what model your 2010 Cayenne is (engine and such..)
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10-17-2018, 01:58 PM
#3
2nd Gear
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10-17-2018, 08:37 PM
#4
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I'm not that familiar with the V6 models, so I can't really suggest where to look, but I can suggest how to look.
How mechanically skilled are you? On a scale of 1=don't let me near a hammer to 10=I rebuild Ferrari engines just for fun ?
If you're mid-level, capable of doing your own oil changes, brake pads, that sort of thing.. I'd suggest looking for an intake leak. How? There are several ways I've used.
I DO THESE OUTSIDE MY GARAGE WITH A FIRE EXTINGUISHER AT HAND!
You probably will need to remove any "beauty covers" you can to get to the guts of things..
- WD40 - spray it around any of the black accordion looking plastic pipes running around the engine - while the car is idling. ANY change in idle speed means there is a leak, and since WD40 isn't particularly reactive/combustible - it's a gross leak.
or
- Take a propane torch - and with the engine idling - crack open the valve and wave it in the vicinity of the same hoses, and the intake. An increase in idle means there is a leak. This is a bit more precise than the WD40 technique.
or
- Flammable carb cleaner. With the red plastic straw. Once you generally located an area of concern - using tiny spritz's from the carb cleaner can - you should be able to really narrow down where the leak is. DO not soak the area. DO keep the fire extinguisher handy. TINY sprays. This can be quite sensitive. A leak will result in a temporary increase in idle speed.
NOTE: I'm not suggesting you do any of these things. This is what I'd do.. (actually I usually jump right to the carb cleaner) and I do it outside the garage. If you do it - it's at your own risk. If you feel uncomfortable doing this sort of thing - then I'd suggest taking it to a dealer or an independent Porsche mechanic.
Good luck, and let us know how it works out.
How mechanically skilled are you? On a scale of 1=don't let me near a hammer to 10=I rebuild Ferrari engines just for fun ?
If you're mid-level, capable of doing your own oil changes, brake pads, that sort of thing.. I'd suggest looking for an intake leak. How? There are several ways I've used.
I DO THESE OUTSIDE MY GARAGE WITH A FIRE EXTINGUISHER AT HAND!
You probably will need to remove any "beauty covers" you can to get to the guts of things..
- WD40 - spray it around any of the black accordion looking plastic pipes running around the engine - while the car is idling. ANY change in idle speed means there is a leak, and since WD40 isn't particularly reactive/combustible - it's a gross leak.
or
- Take a propane torch - and with the engine idling - crack open the valve and wave it in the vicinity of the same hoses, and the intake. An increase in idle means there is a leak. This is a bit more precise than the WD40 technique.
or
- Flammable carb cleaner. With the red plastic straw. Once you generally located an area of concern - using tiny spritz's from the carb cleaner can - you should be able to really narrow down where the leak is. DO not soak the area. DO keep the fire extinguisher handy. TINY sprays. This can be quite sensitive. A leak will result in a temporary increase in idle speed.
NOTE: I'm not suggesting you do any of these things. This is what I'd do.. (actually I usually jump right to the carb cleaner) and I do it outside the garage. If you do it - it's at your own risk. If you feel uncomfortable doing this sort of thing - then I'd suggest taking it to a dealer or an independent Porsche mechanic.
Good luck, and let us know how it works out.
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