Last post on Nov 10, 2013 at 1:53 PM
You are in the Volkswagen Jetta
What is this discussion about?
Volkswagen Jetta, Sedan
#6112 of 6655 Re: 2001 Jetta TDI [Mr_Shiftright]
Aug 09, 2009 (2:47 pm)
I also noticed today that when I put it in reverse and push the brake in as far as it will go, so the car just sits there, The speedometer jumps from zero to 10mph and then goes back to zero. It doesn't do this in any other gear. The place I got the car from said they had to send the car to a vw dealership to get the speed sensor replaced. Is it bad again?
#6113 of 6655 Re: 2001 Jetta TDI [01tdi]
Aug 09, 2009 (6:14 pm)
I'll state the obvious, it's not normal for the speedo to jump up to ten miles an hour when it is sitting still, in reverse. Great observation. Bad speed sensor? It could be. I have a "00 Jetta and mine is working fine. Then you hear of some that don't last 50K. Just doesn't seem that it would fail this soon. If it fails, it fails. Your speedo wont work right or at all. There is a way of checking it, but you will have to have jack stands and a multimeter with backprobes. It's a $60 part.
Did you check out the mounts? If the motor has an abnormal amount of movement(bad mounts/something broken) it could be throwing off the sensor. The drivetrain is still but the engine/trans is moving. In reverse, the engine moves making it think you are moving forward. The system doesn't know the difference. Once you can rule out the mounts and the suspension, with the symptoms you are writing, your looking at the transmission/transaxle.
#6114 of 6655 Re: 2001 Jetta TDI [underthevwhood]
Aug 10, 2009 (6:35 am)
I was out there all day yesterday and pulled apart the car piece by piece. That rear motor mount is a pain to be able to get to see. The side two mounts are properly installed and are tight. However when I put it in reverse you can see the engine pop up a little bit ( like changing its position from level in the car to some angle, I would guess about 20 to 25 degrees off.). From what I have read and what others have posted this leads me to believe that the rear motor mount in failing in which case would mess up the entire system (trans, sensors... everything). I am having a hard time in getting a good enough look at that back mount though.
#6115 of 6655 Re: 2001 Jetta TDI [01tdi]
Aug 10, 2009 (9:58 am)
Yes, taking a look at the rear mount is a pain. You have to have a drive on lift or pit so you can look at it. If there is that much movement, good chance it is worn out or broken. The place online where I get most of my parts doesn't have the lower mount for your TDI. Check with VW and see if that mount fits other engine types. Maybe you will get lucky and it is the same p/n for 2.0L, 1.8T. The lower mount for a 2.0L was around $55. VW price will be a whole lot more. Checked one local auto parts store. You have to order it, no price given.
I would be real tempted to change all three mounts at the same time. If the rear mount has failed, it is putting a lot of stress on the other mounts. Wearing them out before their time.
Do you feel you could do the work, or will you take it to a repair shop?
#6116 of 6655 Re: 2001 Jetta TDI [underthevwhood]
Aug 10, 2009 (1:11 pm)
I wish I had the right tools and space to undertake this process myself, But I do not, nor do I have a garage or any type of shelter from the elements. So I am taking it to a local place about 3 miles away from my house that specializes in WV. I asked the first mechanic I called if it was necessary since it was just a motor mount but when I called the vw specialty place I also set up a general check fo the vehicle. Guess it will all work out.
As for the other two mounts, I figured that they would have excess wear and tear on them because of the third one being beat up, but when I checked them yesterday they seemed to be tight and did not appear to have any play in them. That is one thing I am going to ask the shop to take a look at for me.
At the local Advanced Auto mounts range from 80 to 150 for the rear and 50 to 100 for the side mounts. These priced do not seem to be reasonable. I figure the shop will take about an hour to do the actual labor and they probably get their parts from advanced auto since its like a mile away.
Thanks a lot for everyone helping me out with this inconvenience, special thanks to underthevwhood. You seem to be very knowledgeable about vw. I know where to go if I have any future problems
#6117 of 6655 Re: 2001 Jetta TDI [01tdi]
Aug 10, 2009 (2:14 pm)
I've owned six VW's and have two now. Looking to get my daughter a Bug. No rush, I will get one at my price. Also, went to school for this. I own most tools needed. Have a place to work.
Check all the local auto parts stores for the prices. There can be quite a difference. Make sure the price is for the dogbone with bushings, not just the bushings. The price you wrote looks like it is for the dogbone with bushings.
If cost is an issue, you could hold off on the side mounts. You are aware of them. Have the shop check them out before and after the rear mount is replaced. On a lift, it shouldn't take that long. Jack stands a little longer.
Please let us know how it all turns out.
#6118 of 6655 EPC Light and Loss of Power
Aug 13, 2009 (10:48 pm)
My dashboard has been lighting up like a christmas tree lately.
Currently I have the car throwing the following codes I was able to get from a generic code scanner. Check engine light is currently on
Throttle Actuation Potentiometer Sign.2 Signal too High
Throttle Actuation Potentiometer Range/Performance
Throttle Actuation Potentiometer Signal too High
On occassion and it happened several times today for some reason the EPC light will go on and I will lose power. Usually just a simple restart will make that light go away and I'll have power again, but the triangle/circle light usually stays on until I restart it again.
I've cleared the codes several times and have them stay off for a week at at time sometimes, but they always come back
I've had no work done on the car recently so it couldn't of been cause by anything else that was done to it.
I've checked all the fuses and they all appear to be good. I've also checked all the hoses for cracks and any loose connections and everything appears to be ok.
It's a 2000 Jetta VR6 with the 2.8L engine
I don't want to go to the dealership or anywhere else for that matter and have them throw on a new throttle body and have it not solve the problem cause that's how most places operate.
So what should I check first?
#6119 of 6655 Re: 2001 Jetta TDI [underthevwhood]
Aug 14, 2009 (7:50 am)
I just got back from the shop. They say there is no problem with the engine mounts and that they are all installed and properly in place. It also said that the exhaust hanger support and mount are missing and that they would need to replace the entire exhaust system for around $900. It also said the transmission is leaking fluid and they suspect it is starting to fail. Other than that the rotors are rusty (due to sitting on a car lot for about a year) and the under pan is missing. I planed to replace it with a metal one anyway.
So basically it needs a transmission and exhaust system but somehow it still passed inspection? Any suggestions underthevwhood? haha happen to live close to West Virginia?
I looked up transmission options and found out rebuilding the one you have is useless. A new automatic transmission and installation sits somewhere around $5000. Anyone know how much it is to convert an automatic trans to manual? The new manual 5 speed transmission is only 2 to 3 thousand plus installation and conversion costs.
#6120 of 6655 Re: 2001 Jetta TDI [01tdi]
Aug 14, 2009 (9:09 am)
Sorry about the bad news. Like I wrote earlier, if it wasn't the mounts, your looking at the transmission/transaxle. Just our luck, it's never the simple/cheap fix.
I don't think a trans service will help. So the options are new, used, or rebuild. With the $5000 you were quoted, new is out. You can buy a different Jetta for that. What did you learn about rebuilding the trans? Useless, please explain. Used may be an option. Most likely from a salvage yard. Most of the time they can tell you if it was working when they received the car. How bad is the leak?
The quote for the exhaust seems a little high. I don't understand why they would want to replace the exhaust system if the hangers and/or mounts are missing. This is something they should be able to fabricate. Are the mufflers shot as well? For $900, you should be able to get top of the line stainless. Check with your local muff. shops.
Convert to a 5-speed manual trans.....you don't want to go there. LOL. Way to much work, especially if you don't do the work yourself. More Work=More Money.
Sorry I live in South Texas. Little far to help. You will have to be persistent and "ferret" out the good prices. I got tired of paying a lot just because I had a VW. After a quick search, I found a rebuilt 5-speed auto for around $2100 w/ one year warranty. Not cheap but better that $5000.
#6121 of 6655 Re: 2001 Jetta TDI [underthevwhood]
Aug 14, 2009 (9:27 am)
I have read many forums online including a few at tdiclub and everywhere seems to say that when you rebuild the transmission it will last 100k at most then fall out again. However there have been a few cases when the transmission fell out sooner than that, and some when the rebuilt transmission fell out under 20,000 miles. These could be isolated incidents though.
The garage I took it too was kind of vague. They said it was leaking but only suggested fixing it and said it shouldn't be much of a problem. To me that seems like it is not leaking too much but who knows until I get a chance to look at it myself. They seemed to think it was more important to fix the exhaust before the transmission. The receipt says center exhaust hanger support and mount missing, and front exhaust poor. It passed inspection and the engine is not very loud so I don't really care about the exhaust. It seems fine to me, I might just weld it or make my own brackets once I get my welder.
The car shifts fine in all gears except for first. Off the line it kicks, and very occasionally it stalls itself out but will start right up again. Also when the transmission fluid warms up there is less of a problem with it. It stalls more often when cold in reverse.
I have to look in the area to see if there are any used transmissions. from what I have read it looks like their life span is from 100k to 150k and they start to fail.