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Sedans Volkswagen Jetta Volkswagen Jetta Maintenance and Repair
6290 messages, Last post on Dec 04, 2009 at 7:48 PM
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Replying to: tdrewke (Aug 20, 2009 7:02 pm) Free at Autozone. Loose or corroded connections on battery. Loose belt on alternator. Bad alternator. Bad diodes in alternator. Bad dashboard dimmer switch. These are the things I would look at. Might be other things that other people might come up with that is more specific to VW. |
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Replying to: underthevwhood (Aug 06, 2009 2:22 pm) We took the car to a different mechanic and he replaced the plugs and wires. The car ran great for about 100 miles and then went totally haywire. The mechanic says that there are about 10 different codes in it now. If we can't get it running, I guess I'll have to have towed back home (yuck). The P0606 code said a PCM processor fault. I'll have to try and narrow down the clicking. It sounds like the ECU may be a good place to start. Thanks again... Mud |
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Replying to: mudpup33 (Aug 22, 2009 9:47 am) |
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Replying to: mudpup33 (Aug 22, 2009 9:47 am) Grounds would definitely be a thing to check. You wouldn't think it would cause so much trouble, but they do. I'm not sure if the ECU is self grounding or not. If it is, you will have to clean up the contact points. It's probably the mounting bolts. Over the years they can corrode. If not, then it is grounded through a wire coming into the unit. Check around for a shop (to include VW) that can check the ECU. The check would rule out or confirm the ECU is bad. Tracy
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| i changed my belts and it seemed to run great after driving it for a while i noticed it slow to start. a while after that it started bucking when i let the gas off and will continue to buck until the pedal is let out all the way or if i start to give it gas again. i also added a fuel injector cleaner that day. what is going on? | |
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I'm a new Jetta TDI owner -- love the car -- but encountering a couple of issues and wonder if someone has experience or knowledge of them. First, my automatic transmission makes a slight but percteptible thud as it downshhifts into first gear when I stop. I took it to VW service, and they told me that all the electronics on the transmission check out fine. They will not say if this "thud" is typical or not, or if it should be happening at all. Anyone have experience with this '09 six speed automatic? What should I expect? Second, on two occasions I have turned off the engine only to have the fan continue to run at high speed. In each casse, after waiting about three minutes, with fan still whirring, I re-started and shut down the engine and the fan stopped. Is it normal for the fan to do this? |
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Replying to: doctordc (Aug 23, 2009 1:17 pm) We had that happen a few times on our gas Jetta 2.5. Then we had CEL on with the code 2181 and there was some pretty extensive and expensive ($600-800, IIRC) repairing done (under warranty) to some cooling system sensor(s) and associated wiring harness(es). I figured the fan staying on was related to the failing parts that eventually set off the CEL. The fan has not done this again in the 6 months since the repair. |
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Replying to: underthevwhood (Aug 23, 2009 6:16 pm) Well, I'm off to try and figure out where the heck an ECU is on this car? This sounds silly (sorry), but can you take the ECU out of the car and take it somewhere to get checked? I would surely rather do that before I buy a new one. Thanks again! 
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Replying to: doctordc (Aug 23, 2009 1:17 pm)
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Replying to: doctordc (Aug 23, 2009 1:17 pm) HOWEVER: I would not expect this to happen very often except in extremely hot weather or you did not allow the proper cooldown of the turbocharger. REMINDER: With a turbocharged engine, it is ESSENTUAL that you allow engine to idle for awhile to circulate cooled oil thru the turbocharger before shutting off. This is especially true when you pull off highway traveling 65+ MPH into a "rest area". turbocharger can be RED HOT at that point!! If you do not allow idle-time for turbocharger to cool off, the bearings can 'cook' without flow of fresh oil for several minutes. Personally, I always watch the clock and allow 2 full minutes of idle-time when I pull into rest-area before shutting down. Do not forget... unlike some other turbocharged engines (Subaru).... the TDI turbocharger is OIL OOLED ONLY.. (not watercooled)
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