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Sedans Volkswagen Jetta Volkswagen Jetta 2005 and earlier
12742 messages, Last post on Oct 06, 2009 at 1:33 PM
You are in the Volkswagen Jetta Forum. Your Hosts are pat & karens
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Replying to: gatz84 (Aug 08, 2005 7:37 am) That one hour is time with the ignition key in the on position which means you need to drive the car for an hour. Once the code is correct your radio will go back to normal operation. This should all be in your owners manual, again your 3rd gen may have a different code system. Hope this helps, Abraham |
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Hi everyone, new member and first time VW owner. I've been quite happy with my Jetta until I've had a mysterious check engine light I can't seem to beat. I took it in for a free AutoZone scan and they diagnosed it as bad primary AND secondary O2 sensors. I picked up two new sensors from the dealer and installed them both without any trouble, yet the CEL persisted. I had the codes cleared by my friendly local non-dealer import mechanic, who found a very cracked vacuum line from my brake booster to the back of the intake plenum. This line is about 1/2" I.D. and has a built-in check valve. This leak was very noticable and in hindsight I could hear it in the car with the windows up. I STILL have a CEL showing even after the line was replaced and codes cleared... still shows up as a lean condition, I forget the exact error code #. Should I just spring for the VAG-COM and start clearing and reading them myself or is there some other common part that's prone to failure? Any assistance would be appreciated, thanks ahead of time, Abraham
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Replying to: boombasticata (Aug 18, 2005 9:39 am) What I discovered was this: There are two electric fans in this car. They both turn on and run when the A/C is on. I noticed that one of them, the A/C condenser cooling fan, was not running. One fan out was enough to cause the car to run hotter (no overheating , no steam, etc), and for the A/C to shut down due to higher coolant temperature. I unpluged the subject fan harness connector, and connected a 12 volt battery to the terminals. The fan motor turned on. So the fan was good. Next step was to check the A/C fuse and relay. they were OK. Next I found out where the condenser fan realy was. That was my problem. Something was rattling inside the relay. $ 10 for a new relay and everything is back the normal. Each electric fan on this car has its own relay. The A/C was shutting down when the coolant temperature rose to high level. I guess this is built-in protection feature in the system. I hope this helps a bit in your case. You can test the fan easily by using two leads, connecting them to a 12 V battery and connecting the leads to the fan harness plug terminals. If the fan motor is good, it will turn on. You can also test the relay by using an ohmmeter and a 12 Volt battery source. You just need to know which terminals to check the continuity on in both energized and deenergized position. A shop manual helps here.
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| yeaterday, i put down a deposit on a jetta 2.5 .got in the car with the salesperson and check engine light went on when i put it in drive car jumped and changing to other gears the same. he had it checked out and told me transmission sensor needed to be changed but no 2005 specialist available so it is buying me a couple of days to decide....not sure what to make of this or if he is even telling me the truth, does this sound like a big problem or a reason to walk away ,,,this is the last 2005 automatic on their lot and wonder if this is reason | |
I have a '99 Passat which leaks in the driver side floor when it rains or even when I wash my car. Water is not visible at first, but it collects under the carpeting and soaks the floor after a big rain. I try to never leave it in the rain now and take care washing it, but I have already sustained damage to the electrical systems including the power door locks and the fuel door lock release button. I paid VW dealer $340 for diagnostic work to tell me that the comfort module (which is under the left driver's side foot panel) was submerged in water. Further diagnostic would be expensive and I decided not to pursue. Anyone experience similar problems?
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Replying to: dpas (Oct 25, 2005 2:59 pm) |
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Replying to: p100 (Aug 22, 2005 7:29 pm) |
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Replying to: jettabiker (Aug 21, 2005 4:58 pm) The good news is that your 99.5 MAF is covered by an extended warantee for 7years 70,000 miles. Any VW dealership should honor that factory warantee. They will have to hook your car up to their diagnostic computer and if the MAF is the problem... everything is FREE OF CHARGE. Obviously, if they find some other issue that is NOT the MAF, they will charge you for the diagnosis.
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