01-28-2016, 07:41 PM | #1 |
VW Direct Injection engine problems [This is why you use Top Tier Fuel...]
My wife has a VW CC and has 140,000 miles on it, she has used ARCO premium gas 100% of the time since it was new. Her company pays for her gas with an ARCO credit card that's how I know she has only used ARCO. Anyway, it started running rough and fuel mileage dropped. The VW mechanics had to clean the valves, they said it was because she did not use Top Tier gasoline. I hope everyone learns from this. It cost me $1200. Below are photos of the valves.
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01-28-2016, 07:42 PM | #2 |
Another photo
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01-28-2016, 07:47 PM | #3 |
Drives: 2015 2SS/RS vert, Spring Green Edtn Join Date: Jun 2014
Location: Sarasota, FL
Posts: 1,284
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Pretty nasty looking!
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2015 2SS/RS vert, Spring Edition Green Flash (2015 - present)
2014 1LT vert, Blue Ray Metallic (2014 - 2015) |
01-28-2016, 07:47 PM | #4 |
Drives: 2010 RJT 2SS Join Date: Dec 2009
Location: SE Penn.
Posts: 175
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Hmm coming from a rep from a company just caught with emissions fraud
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01-28-2016, 08:16 PM | #5 |
Drives: Exige, Miata, Ghia Join Date: Jun 2011
Location: CA, Bay Area
Posts: 2,309
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Is her engine a direct injection engine? If so, not surprised. Has nothing to do with the gas.
Just looked it up. Yup not the gas fault. This is a known problem with direct injection engines. VW has some literature on this and people over at vwvortex has documented this through and through. This is a very common problem. In fact, her car is one of the worst and most known. http://www.autoguide.com/auto-news/2...-engines-.html Do a Google search, it's all over the web. Last edited by Nessal; 01-28-2016 at 08:27 PM. |
01-28-2016, 08:48 PM | #6 | |
Drives: 2013 2SS (sold) Join Date: Jan 2016
Location: Seattle, WA
Posts: 602
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Quote:
So, Chevy's new LT1's (C7 Corvettes, 2016 Camaro SS) and LT4's (C7 ZO6) have direct cylinder fuel injection. We'll have to see if Chevy found a way to keep this from happening. In a direct cylinder injection engine, it is way WAY more critical to have a catch can or something to keep oil particles from entering the intake manifold/intake runners. Because no matter what fuel cleaner you put in, it won't do anything at all but clean your fuel lines and injectors, won't do anything for the valves or intake runners. |
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01-28-2016, 08:49 PM | #7 | |
I used to be Dragoneye...
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Top Tier gas is a good thing to keep in mind when possible, but as has been stated - there are other factors at work here. I can't imagine "bad gas" alone would result in THAT much sludge. Not to mention that the fuel never sees the backside of the valves, anyways.
Unfortunately, it sounds as though the VW mechanics don't know how their own engines work. Quote:
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01-28-2016, 08:55 PM | #8 | |
Drives: 2013 2SS (sold) Join Date: Jan 2016
Location: Seattle, WA
Posts: 602
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And yeah, good call on that |
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01-28-2016, 08:58 PM | #9 | |
I used to be Dragoneye...
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Quote:
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01-28-2016, 09:00 PM | #10 |
Ret AF, cancer survivor
Drives: 2013 Camaro 2SS/RS & 2006 Corvette Join Date: Jul 2015
Location: Mesquite, NV
Posts: 2,741
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Agree with other's, there is something else at play here to cause that much damage.
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01-28-2016, 09:04 PM | #11 |
Drives: 2013 ZL1 A6 #7860 Join Date: Apr 2014
Location: CO, USA
Posts: 1,279
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Direct Injection. The fuel has nothing to do with it as there is no fuel until AFTER the Intake Valves...
It being a VW with 140,000 miles is to blame. Last edited by 2013 ZL1 #7860; 02-04-2016 at 06:36 PM. |
01-28-2016, 09:11 PM | #12 |
Okay, so everyone please explain to the dummy in the room (yes me) what this thing about a catch can is and what direct injection has to do with anything. You are talking over my head.
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01-28-2016, 09:13 PM | #13 | |
Doing what I like to do
Drives: 1963 Landrover Join Date: Nov 2013
Location: Almost at the corner !
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Quote:
I did the numbers , and if you had paid for the gas yourself for 140000 miles at 25 miles /gallon = to 5600 gallons , X $0,35 different between ( TOP) tier BS , and the lower shelf gas = to $1680 savings - $1200 to fix the engine , you still ahead by $480 Just take those $480 and take your lady for a nice Valentines Day dinner You will be surprised what that can do for the two of you ! |
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01-28-2016, 09:15 PM | #14 | |
BCS Auto
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Quote:
An Oil Catch Can is a device that allows PCV gases to enter the catch can before feeding into the intake (and across the valves), allowing oil vapors to condense and collect in the can instead of down the ports, causing buildup. With DI engines, the dirty vapors coming from the PCV system are leaving deposits on the valves, and there is no fuel being sprayed across the valves to keep them clean (fuel wash).
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Last edited by ghosted; 01-28-2016 at 10:22 PM. |
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