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Sedans Volkswagen Jetta VW Jetta TDI
3707 messages, Last post on Nov 30, 2009 at 6:14 PM
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Replying to: swalsh19 (Jan 11, 2009 7:31 pm) You did not say what year your TDI is so we do not know which engine you have. HOWEVER... failure to start most often points to one or more burned-out glowplugs. Depending on the year of your TDI... some of the GPs may not be "monitored". Newer TDIs actually run diagnostics on all the GPs each time you start the engine. Hard-starting usually points to your IQ (Injection Quality) being set to improper value. A combonation of IQ being wrong and some burned-out GPs would really be hard to start in cold temps. Keep im mind that IQ can 'drift' out of spec as the TB (TimingBelt) wears and should be checked at the same intervals as the TB.
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Replying to: bpeebles (Jan 11, 2009 7:38 pm) My cars year is 2002, sorry about thiis little tidbid it would help. 
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Replying to: swalsh19 (Jan 11, 2009 7:44 pm) There is also possibility of GP harness or GP relay issues. For more details...you may also wish to read GlowPlugs 101 (All 9 pages of it.) If you do end up pulling them, be VERY careful. Especially if they have never been out before. Make certain that the engine is STONE COLD. You may have to 'work' them out a little at a time, spray with some lube and re-tighten every 1/2 turn to keep from galling the threads in the aluminum head. As you install each one, apply thin layer of antiseeze compound designed for aluminum. |
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Has anyone found decent instructions on use of this option for a 2009 Jetta TDI. Instructions provided are not very informative e.g. moving from one playlist to another using the CD changer buttons. I actually visited local dealer in order to get the IPOD to work and they were not well trained on its use. This option is not the cable instead it is the socket in the console. Thank you for any light you can shed on this PS - The manual did not have anything there was a two pager white insert but it was not very helpful.
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Replying to: hlcastelo (Jan 14, 2009 1:28 pm)
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Replying to: swalsh19 (Jan 14, 2009 5:07 pm) With that said, there is a plethera of information about TDI fuelpumps on tdiclub.com site. The most common cause of leakage is from using BIOdiesel which can cause seals to soften. |
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I have 2002 TDI. I cleaned the EGR this weekend and since then I have a whistling/squeel sound when I accelerate in lower gears, it goes away when I hit 3rd or 4th gear. I hoping it has something to due with what I have cleaned on the EGR and not something to do with the Turbo. I have inspected the EGR area and don't see anything wrong. Has anyone got any suggestions for what I can look for?
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Replying to: swalsh19 (Jan 18, 2009 4:44 pm) if you observe/listen with hood open while someone revs engine gently to whatever rpm, you may be able to see/hear the exact location of possible vacuum leak. |
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Replying to: swalsh19 (Jan 18, 2009 4:44 pm) Any leaks in the intake plenum will sould like a "whistle" as the turbocharger builds up pressure in the intake system. Check all connections from turbocharger, thru intercooler and into the intake manifold are correctly fitted. |
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| This is our first message. We have a 2004 Jetta TDI. We live in Colorado and are having some cold weather. We had trouble starting it and the mechanic replaced the glow plugs (which did nothing) and then replaced the fuel transfer pump. It now starts ok, but when you step on the throttle, nothing happens. We have to restart the car numerous times and then it will finally throttle up and drive and start great the rest of the day. What the heck is going on? | |
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