04 Jetta GLI 1.8T... Just picked this girl up last week and I love it. Super smooth ride and shifts cleaner than any car I've driven and owned.
Originally wanted a TDI, but I couldn't resist this deal that fell in up my lap. Occasionally the EPC light comes on and goes away. Working on diagnosing it in the mean time...
2002 1.8t Jetta Wagon with the automatic transmission. They've had it for about a week now and we've been trying to iron a few problems out. Mostly cosmetic until the last couple days.
The coil pack harness is trash. I bypassed a couple of the extreme cracked wires in attempt to keep it going until the new one comes in hopefully at the end of this week. We put new plugs in but only afterward did we find out that NGK or VW is the way to go. We put autolite iridiums in.
New fuel filter, however, the line connecting the tank to the filter will not click into place completely. We are able to start/drive the car without the line popping off from the pressure, but you just have to tug on it with your hand to get it off, no need to depress the clip.
The car seems to run better cold. Once it is warmed up and you've been driving around town for 10-15 minutes is when the shuddering starts. It ONLY dies when in Drive or Reverse while at a complete stop. The idle drops down to 400 rpm or so, you can't rev the motor/drive. Sometimes it will come back up to normal and you can go, sometimes it will go back and forth but you can't get any power to the wheels. Sometimes it will drop the RPMs and shudder at 400 for a couple seconds then just die. It always starts right up without hesitation. In park/neutral the idle is still slightly erratic, occasionally bumping up to around 1300 rpms for a second or two then back to around 900 or so.
When we bought the car, we test drove it and it was fine. Of course that is how it works out. They drove the car for about a week. In that time, it shuddered and died once, and would occasionally shudder at a stop light but there was no issue driving it or loss of power when accelerating.
What I'm wondering is if we should go ahead and order the R8 coil pack and spark plug kit from HSTuning. I'm hoping that the harness fixes the issue, but if it could be cheap spark plugs or a coil pack going out, I'd like to get it all done at once. My main concern is the possibility that it could be the transmission. The symptoms feel like loss of power, not slipping, but still, I'm worried that maybe it could be the issue.
I've searched the other "screaming" problems but they don't seem to fit, they're either when starting and/or cold, or when flooring it.
My car screams occasionally after I start it. Get in, crank car, let go of key, good beat of pause, and then SCREAM! It's fairly loud. Doesn't do it every time, does it whether hot or cold. Once or twice it screamed again after I had backed up and stopped (no it's not the brakes, they do squeal but it's a different sound).
While I'm in the engine troubleshooting the AC system, I figured I may as well get into a few other issues I've noticed.
I have a stock 1.8T and my turbo feels like it's surging occasionally. A few months ago my diverter valve started making the "blow off sound" when I shifted (manual transmission).
Is it possible for a faulty diverter valve to dump the boost overboard and cause the turbo, and engine hp, to surge? It almost feels like I let my foot off the gas for a second or two (i.e., engine power is very peaky).
A second thing that comes to mind is a clogged fuel filter. I know VW does not recommend ever changing it so it's never been done. Is this a possibility as well?
Air filter is clean, by the way. There's a K&N washable one in the stock air box and I can see daylight through it so it's not too dirty.
The cruise worked perfect before I lowered the car and now it works occasionally.. It was on most of the 10 hour drive to this part of Florida and around town it's worked but has started to act up a bit again now.. Sometimes the cruise light will flash and then won't work but other times it's fine any input? The car is an otherwise stock AWP at 107k miles..
View 2 RepliesMy car is stored outside rather than in a garage in winter. I do notice bogging or "gargled" acceleration maybe 4/10 on occasional days and sometimes the engine light will come once this happens and then other times it doesn't come on when it occurs. Engine light usually comes on rarely but when it does, it's when the bogging is really bad.
Question is what would be the most cost effective way to solve or find out what the issue is? And/ or, what would you think the underlying issue would be for starters? Also, does my year car have a MAF sensor? BTW the cabin filter and air filter were just changed a few months ago but unsure if this would include the shop cleaning the MAF if I do in fact have one.
So I just noticed now that my car is popping slightly at idle occasionally...It doesn't do it all the time and the idle is kinda lumpy but always holds at 800-900. Sometimes it drops a bit lower.
Also when starting it up in the morning, or when the engine is cold it doesnt rev up to 1500rpms it just starts and immediately drops to 800-900??
When I press on the gas and keep the pedal at one spot, say 2000rpms, it slowly drops down to 1500??
I have an '04 Jetta TDI that stalls occasionally for the past 9 months. The stalling almost always occurs when I am stopped in traffic and then it restarts immediately. Recently it also stalled as I was driving down the street. Any clues? Seems to me like it might have something to do with the battery or alternator but I really don't know anything about diesel engines.
View 2 RepliesGot a 2001 Jetta 2L automatic 200k miles with gremlins. possibly multiple unrelated problems. First problem that presented is that the transmission will occasionally not shift into 4th gear. I discovered that if I stop the engine, then restart it, it will again return to normal operation, hence the thought that it is electrical. After a year or so of this, second problem pops up: the engine will die while the car is driving, or some times idling at a light. I've also noticed that the interior lights flicker somewhat in intensity when on and the engine is operating, so there could definitely be a grounding issue somewhere. I have heard that the ECU/ECM connectors could become corroded, but haven't yet dug into it to look. Any guesses as to where to begin?
View 2 RepliesMkIV 2.0 ... My 4th cylinder will occasionally misfire if I release the clutch at too high of a rev. It is intermittent but happens if I do a burn out or something. How to fix this other then stop doing burn outs and such.
View 2 RepliesGot a Vr6 a couple weeks ago and recently the gauge has been acting strange. Few days ago the gauge went from normal to showing completely empty and did that for a couple days (gauge would just display normal and occasionally just drop straight to empty and sit there until restart) but yesterday it started just sitting on full. Even when restarted just goes to full. I assume its the sender unit ....
View 2 RepliesMy 2003 Jetta GLI was making a terrible grinding/knocking noise when i would turn and occasionally make this "Bong" sound especially when reversing. I took it to my local shop and they say my spring in the front left is "either broken or unattached" and that i need spings/struts. I have like 150k miles on this car so the timing is probably right. So my question is, how much should they charge for this? Also, what should i have them order and install? Im not trying to lower or anything like that, OEM or a slight upgrade is what im looking for....
View 9 RepliesDriving home from the mountains the other day my EPC light came on for about 1/10 of a second and then went away. Anything I should be worried about or is it no big deal?
View 3 RepliesThis morning i went to start my car and threw a flashing engine light. common sense says its a misfire. i know it's probably smart to check my spark plugs first but here's my dilemma. if it isn't the plugs and turns out to be my ignition coil, where the hell is that even located? I have an 04 Jetta 2.slow engine
View 2 Replies2004 VW jetta 2.0 ... So my vehicle stalled on me i replaced the battery, the alt, and then when i started it after installing the new alternator it didn't sound right so i checked it out and saw a spark plug wire was in very bad condition and was causing a spark where the spark plug and the spark plug wire connect so i bought a new set of spark plug wires and swapped the old ones for the new ones. Now when i start my vehicle the check engine light is blinking and the car definitely does not sound right. i am positive i did everything correct when swapping the spark plug wires but i am lost as to what could be the issue.
View 1 Replies2004 VR6
my right rear tail light is not working. I tested the tray on the left side and the brake light works, so the problem must be from the right connector or right wiring back somewhere.
any tips on how to find the problem from here?
I've got a 2004 Golf 2.0 GL.....and for some reason this morning out of the blue when I tried to start the car to go to work it fired right up....and then about 1-2 seconds later immediately dies. I tried several times to start it....but every time it fired right up, then dies in a second or two. I also noticed that I'm getting the Immobilizer light on the dash....I'm guessing this is the problem.
Why would I get this all of a sudden? Did something happen to the chip in my key? Could the sensor in the steering column by bad? I don't want to have to load this thing on a trailer and take it to the dealership. Why would this happen out of the blue??
My 04 GTI 1.8T got the infamous codes P0300, P0303 and P0301 yesterday morning. The check-engine light flash when I drive it. It is a little rough when the check-engine light flashes, but it is drivable and nothing major. When the car idle or when it come to a complete stop for 15 seconds or so, the check-engine light goes away and it comes back after 15 seconds or so after took off from stop.
I cleaned the MAF last night, but the check-engine light still acts the same way as yesterday on the way work this morning. The codes refer to miss-fire. This is my first VW.
Since I can easily get sparkplug from Checkers, I'll try it first. Checkers carries Autolite, ACDelco, NGK and Champions. Which brand do you prefer for VW engine? I hope that it is not the coil pack. It is expensive for $30 each at ECS Tuning.
I have a 2004 Jetta GLS with 125K miles and standard transmission. Just had the clutch completely replaced. After I picked the car up, I ran some errands, turning the car off and on a few times. Then the ABS/traction control light came on. I tested the brakes, which seem fine, and accelerated on some ice, with no flashing light like usual, so that's a concern. Came home and used the VAG software - no fault codes came up. Went back to mechanic, who said the clutch and this new issue are not related, but he checked my wiring, checked for fault codes, and took it for a test drive. Said he did make the flashing light come on. Turned the warning light off. It came back the next day.
My questions:
- Could this be related to the clutch being replaced?
- Is this something I should worry about, or just live with the light on?
Ok...so I drove my car last night about 120 miles and all was well. Got up this morning to go run some errands and the car started acting weird, sputtering. The check engine light was blinking on and off, then it came on solid and stayed on. I haven't checked the code yet.
2004 Jetta GLI1.8 T Manual Transmission
The vehicle is a 2004 Jetta MK4 1.8t.
Last thing I had replaced about 2 months ago was the Solenoid valve, the MAF and Solenoid hose. Car ran fine for about a month, and bam...engine light came back on, along with the ASR light. At first it was saying "cat converter" so I researched that, and what a surprise, it spoke about being a $1k piece to replace. NOTHING HAS BEEN CHEAP ON THIS CAR, and I'm losing my mind.
The latest adventure happened today coming back from the gym. Car started jerking (which has been normal since every now and then the ASR light will come on, which I'm told is the traction control light. Causing the car to jerk. Simple fix is pulling over, shutting the car off, and turning it back on. That always clears it, and then I'm back on the road.) but instantly it lost power. It wont shift, but the traction control light didn't come on. I plugged my OBD2 tool up, and came back with these fault codes:
P0420: Catalyst System Efficiency Below Threshold (Bank 1)
P0753: Shift Solenoid "A" Electrical
P2637: Torque Management Feedback Signal A
I'm going to go to these guys tomorrow, but I would just like to get an educated guess on what might be going on, so I don't look like a lost dog while they're figuring out what to do next. These guys seem knowledgeable, but they're missing something since I've been in and out of their shop several times and still getting my traction control light on at random times, and now all 3 of these codes.
Does that Solenoid code have anything to do with the Solenoid valve they put in? I was told that cleaning the throttle body and the cat converter might work. Would those be cheaper options to consider, and see if that works?
I also read that unplugging the alternator and plugging it back in, then cleaning the male and female with electrical cleaner might work. I was told about a month ago that my battery barely passed. Could this be causing any of my issues? I also did a log while I was driving, but all that's showing up is a google map document.