2003 tdi automatic transmission seems to be not shifting properly
We use biodiesel and have been running b99 consistently since 2003. That (I hope) is not the issue but I suppose it could be the fuel filter since the engine does feel like it is not getting fuel/ power. It happens mostly going up hills. Gets to 3500 rpms and seems to rev there too long before shifting...which it eventually does but it sounds like it is straining.
We need to travel 150 miles - we're on the last 3rd of a road trip, gone about 240 miles so far - and well be on the road tomorrow. Seem like we'll make it home and then I will schedule with my tdi specialist.
Re: 2003 tdi automatic transmission seems to be not...
It will not be a clogged intake if you have been using b99 since 03. But it very well could be the fuel filter or the injectors. People that drive these cars, including me, carry a spare fuel filter. this is not dependent on using Bio. When these filters clog power loss comes on suddenly and with out warning. The use of strictly b99 can cause problems with the injectors over a long period. Pitting in the injector causes an inconsistent steam of fuel.
If it was my car, first thing I would do is change the fuel filter and run 2 cans of diesel purge through the engine it. It is very good stuff.
Note:this does not go in the gas tank or through the filter.
You can clean it yourself by removing the intake and powerwashing it out. If a dealer does it they will way overcharge you. You might need a new EGR valve too since that might be clogged up too. There are a lot of tutorials on the web and it isn't that bad of a job. Just make sure you wear gloves.
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I would think it has something to do with
Automatic Transmission Shift Lock Control System
The automatic transmission shift lock control system is a safety device that prevents an inadvertent shift out of PARK when the engine is running. The driver must press the brake pedal before moving the shift lever out of the PARK position. The system consist of the following components:
• The automatic transmission shift lock control solenoid.
• The automatic transmission park lock solenoid (Regal only).
• The automatic transmission shift lock control switch.
• The transmission range switch.
With the ignition in the ON position, battery positive voltage is supplied to the automatic transmission shift lock control switch. The circuit continues through the normally-closed switch to the automatic transmission shift lock control and park lock solenoids. The transmission range switch provides a path to ground in the PARK position. With the automatic transmission shift lock control and park lock solenoids energized the shift lever is locked in the PARK position. When the driver presses the brake pedal, the contacts in the automatic transmission shift lock control switch open. This causes the automatic transmission shift lock control and park lock solenoids to release. This allows the shift lever to move from the PARK position.
Do the brake lights work ? If not could be cause by bad brake light switch .
Ira, Depending on your vehicle, some modifications may have to be made, it use to be all diesel engines could, now with the new injection systems they say you have to be careful of contaminating engine oil, and emission problems. It seems in newer diesels, the Bio fuel does not vaporize as well and contaminates oil. Check the attached links,instruction and guides, last link may list your engines compatibility. Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info." Biodiesel Barriers Why New Diesel Engines Aren Compatible With B100
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Since there is no dipstick to check your fluid level, I recommend changing your transmission fluid and filter and make sure that it is filled to the proper level with the proper fluid. I believe the capacity is 3.2 qts. and I use Castrol Transmission Fluid for Imports. You can double check the capacity and use another brand of fluid that is compatible at your parts store. Just make sure that the fluid you get is compatible and that it is filled to the proper level. To refill your transmission there is a dipstick tube adapter on the front side of the transmission. It is just an elbow with a red or black cap that is o-ring sealed and will have a lock ring on it that you can remove with a small screwdriver. Use a funnel that has a "Measuring cup" and a hose on it so you can measure out the fluid. Hope this helps.
YOUR TRANSMISSION SOUND LIKE LOW IN TRANSMISSION FLUID. YOU HAVE A FACTORY SEAL TRANSMISSION IF SLIPPING SHIFTING HARD TRANSMISSION COULD HAVE FLUID LEAK. YOUR TRANSMISSION DONT HAVE OIL FILLER TUBE AND DIP STICK.THE VOLKSWAGON DEALERSHIP HAS TO USE EQUIPMENT TO ADD FLUID THROUGH TRANSMISSION FILLER PLUG ON UPPER SIDE TRANSMISSION PAN. IF TRANSMISSION FLUID HAS NEVER BEEN CHANGED LET DEALERSHIP CHANGE TRANSMISSION FLUID AND FILTER AND TRY TO LOCATE LEAK IF FLUID WAS LOW. ALSO MAKE SURE ENGINE FINE TUNED AND TRANSMISSION SHIFT CABLE ADJUSTMENT IS CORRECT.
THE 5 SPEED AUTOMATIC TRANSMISSION At the bottom of the automatic gearbox (tiptronic) you will find one threaded plug on below surface, (follow red arrow in the picture below). This is for emptying.
The oil level threaded plug is placed on the car front lateral automatic gearbox surface, (follow yellow arrow in the picture below).
The filling oil plug is placed on the upper automatic gearbox surface, (follow green arrow in the picture below).
Automatic Transmission Fluid (ATF) checking: 1. Requirements for check: 1.1. Vehicle standing on level surface. 1.2. Transmission must not be in fail-safe mode. 1.3. Shift lever in "P" position, parking brake applied. 1.4. Engine idling. 1.5. Air Conditioner and heater OFF. 1.6. ATF temperature must not exceed 104 Fahrenheit degree (40 Celsius degree) at start of test. 1.7. Automatic gearbox oil capacity: 2,5 liter. Only ATF with VW designation may be used. Do not use any lubricant additives. 1.8. Automatic Transmission Fluid ATF - part number: VW G 052 990 A2 1.9. An ATF level check when transmission oil temperature is too low results in overfilling, when too high results in underfilling. 2. CAUTION: Too much or too little ATF will affect the operation of the transmission. The ATF level must be checked at regular intervals.
Sounds like the shift cable is out of adjustment. I have to admit that I am not totally familiar with the TDI set-up but the automatic transmission cable moves a linkage on top of the transmission. If the linkage bushings are worn, the cable may not be able to "push" the linkage to park. If the car shifts fine and does not slip in any gears, the transmission is not bad.
There's no tappets adjustment needed for this engine as they are hydraulic lifters. Try using 10w40 instead and see what happens or otherwise try using Moreys oil treatment with your current oil as it seems to me that the noise is more at startup and for a short period. Cheers.