Golf IV / Jetta IV :: 2002 1.8T - Shifting Out Of Time / Revs When Changing Gears
Got a 02 Jetta 1.8T 5spd auto tiptronic with 100k miles. Having issues with shifting. Trying to determine if its electronic or mechanical. Had a short in solenoid 10 N283 which melted the TCM. Put in a used N283 to see if the trans is still ok mechanically. Plan is if its ok to put new fluids and solenoid pack. What do the experts think does is need a full rebuild or will new electronics do the job?
After putting the used N283 solenoid the trans works but not correct. The problem is in the shifting only. Feels like its out of time. When you start moving from a stopped position from 1st to 2nd the car takes off good but when changing gears it reves and feels like its slipping then it hits hard into 2nd. Then 2nd-3rd is a fast shift and not hard. 3rd-4th slips and revs a little then changes gears 4th-5th is fine. all down shifts are fine. Does not mater if the car is hot or cold its the same.
If I disconnect the MAF 1st to 2nd shifts fine with no problems. 2nd-3rd little rough but not bad. Problem with disconnected MAF when going in Drive at 30-40mph all of a sudden it jumped into 1st gear and felt like I was slamming on the brakes.
With the MAF connected and I shift manually in tiptronic mode each gear runs real good with no slipping at all. But same problem happens when switching gears. I can drive it smooth if i accelerate to 3000 rpm and then left off the gas a little and it shifts fine.. Same with the other gears.
I got a used TCM to rule that out and the problem is close to the same. It tries to shift at lower rpm but still does about the same problem. I did recently had a MAF go out. Put in a new bosch and no change. Did my VCDS scan and only codes I get is "17840 secondary air". I can get operational data on some solenoids but not sure what parameters to look for.
Golf IV / Jetta IV :: Weird Creaking Sound All The Time Except While Turning?
i started hearing this weird creaking noise about a month ago. When it started happening it would only occur at very low speeds and then it would stop, now it happens all the time unless i'm turning. I've heard it could be bushings but I'm not sure. What weirds me out is a lot of the time it'll stop either when I'm turning or if I shift into neutral.
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Prius (2004-09) :: Scraping Sound From Time To Time
Driving last night, I heard this horrible scraping sound from time to time, but I couldn't stop right away. When I got home, I saw that the bottom cover (or whatever the proper name for it is) had come loose at the left front -- I assume from hitting the ground once too often (damn this low clearance). I took a pic, but it's not too clear. The front edge is frayed a bit.
View 3 RepliesGolf IV / Jetta IV :: Passenger Side Thud Sound When Going Over Bumps And Left Hand Turns
My passenger side has been making thud noises on a number of occasions on my 01 Jetta 1.8t:
1. When I go over bumps, the front passenger side will make a loud thud noise.
2. When I take my foot off the brake, there will be a loud thud from the front passenger side as well.
3. When making left hand turns and I begin to turn the wheel back to return it to its original position, there is a thud coming from the front passenger side as well.
It does not continuously click like a bad CV joint would. All these symptoms came at the same time period.
Jetta - Volkswagen :: 2003 - Grinding Sound Most Of The Time When Braking
My 03 Jetta TDI wagon, with 210,000 miles, had a grinding sound about 10% of the time when I braked, BUT ONLY AT UNDER 5 mph...that is the last couple of seconds before completely stopping. The car braked fine, but the periodic grinding worried me. Two weeks ago, my mechanic couldn't reproduce it; today, however, we did and he identified it as the ABS (and I remembered that sound from the couple of times the ABS has kicked in during winter driving. But my question was safety, and my mechanic says the car brakes fine...he has checked them all around and driven with me...and the fault is the ABS system and not the brakes themselves. Need to verify this? The car runs fine (I am the original owner, and for the first 7 or 8 years had it solely dealer maintained) and I plan a road trip this summer, but I need a little more comfort that the ABS acting up won't result in a more serious problem.
View 2 RepliesGolf IV / Jetta IV :: ABS Light Has Been On For Quite Some Time
My ABS light has been on for quite some time although I don't notice anything actually wrong with the system, it brakes very well and I have done a couple 60-0's. Any common fix other than replacing the entire sensor, it's the only light in my cluster at the moment.
View 7 RepliesGolf IV / Jetta IV :: Mk4 GTI - Fluctuation Of RPM Every Time Car Is Idling
Every time my car is idling I get this weird fluctuation of rpm. What it might be. [URL] .....
View 7 RepliesGolf IV / Jetta IV :: Fans Staying On All The Time
I have a 1.6 8v mk4 Golf, and my fans started staying on all the time. There are 2 coolant sensors on this model, one is the green one, and the other is the black one which seems to be hardwired into the thermostat housing. Anyway, I changed the green one, and that didn't solve it, so changed the whole thermostat, which obviously came with a new sensor build on....Hey, it worked, for 2 weeks, and then the fans started coming on again as soon as you turned the ignition key...and the temp needle doesn't move much, as before.
My suspicions have moved to the sensor wiring loom, that was fiddled with, while changing the thermostat...I hear they can become brittle over time, and so behave as if the sensor is unplugged, i guess.... Do these wires unplug anywhere in there so I can test the loom properly?
Golf IV / Jetta IV :: Flashing ABS Code For Long Time?
My car has been throwing an ABS code for a long time now and I've finally decided to actually deal with it.
The code is: 00285 - ABS Wheel Speed Sensor Front Right (G45): Electrical Fault in Circuit
After reading that this could be due to a bad sensor, I replaced the front right sensor, but I am still getting the exact same code. I used measuring blocks in VCDS-Lite to check out what was going on with the wheel speeds and found that at speeds less than 20 km/h, the front right sensor reads 0 km/h, while all the others continue to read the proper speed.
Golf IV / Jetta IV :: Replaced Thermostat Now Alarm Going Off All The Time?
So I replaced my thermostat today... to do that I unhooked the negative terminal of the battery, removed the hose off the thermostat housing (I think that's what it's called) and disconnected the switch to the alternator as well as take off the 13mm jam nut holding the wire to the side of the alternator. I reconnected everything up, put the key into the ignition and just turned it before starting the car and the alarm started going off. I disabled the alarm from controlling the lights and horn by unplugging the electrical connector just behind the fuse panel so I could do some errands today. I then disconnected both terminals on the battery and touched them together to reset the ecu.
After reading that holding the key into the door lock until the windows roll down would reset the alarm; this weekend I'm going to hook up my driver side door lock mechanism (been a little lazy) and give that a try.
Golf IV / Jetta IV :: CEL 2 Codes P0420 And P2181 Came Up At Same Time
I just picked up a MK4 gls 1.8t jetta for a project car.... I wanted to keep the miles off my MK6 gti.... The jetta has 92k miles and the first thing I had done was the timing belt service done as well as a new alternator clutch pulley and oil change... 1 day after I got the car i was driving to work and the CEL came on took it to auto parts store... 2 codes came up
P0420: catalyst system. efficiency below threshold bank1
P2181 cooling system performance
I have the green sensor and I think its time to change the thermostat... My question is is it just a coincidence that both codes came up at the same time or is i possible it is a sign for something else... i just had the thermostat changed 10 min ago...CEL light is gone so i will wait to see if the cat code comes back.
Golf IV / Jetta IV :: Possible To Have Cold Start Mode Every Time?
Strange question but is there a way to have the engine start up in this mode every time its started?
Just wondering for show purposes trying to make a video, as my GTI has a big ass cam and sounds evil in cold start mode and doesn't have that opportunity as its 90-100 degrees here all the damn time...
Golf IV / Jetta IV :: Radiator Fans And AC Stopped Working At The Same Time
A few days ago I was driving around. I get back in my car and when i turn it on no air blows and the radiator fans aren't working at all. My car hasn't overheated but have stopped driving until I can figure the issue out. I have since replaced the fuse box on top of the battery to no avail. I was thinking that it could possibly be the fan control module but in all the posts I am reading not one says that theirs don't work, they just keep running. So is there something else i should be looking at?
View 1 RepliesGolf IV / Jetta IV :: AC Works Some Of The Time - Compressor Wouldn't Engage
03 Jetta 1.8T AC is giving me fits. When the compressor comes on the AC is nice and cold. Problem is that it isn't on very much. Today was a good example. No AC for about the first 30 min drive to get an oil change (local driving). Next 40 min highway drive, AC only got cold for the last 20 minutes and then started to warm up before I got to work. Drove to auto parts place at lunch, AC cold from start to finish. No AC all the way back to work.
So, this evening I started the car with the hood up and watched. Compressor wouldn't engage. Pushed the AC button a couple of times and clutch engages. Compressor stayed on for 7 minutes and ice cold air. Clutch then disengaged and immediately both fans went to high speed for about 5 minutes with warm air out the vents.
Fans cycled back to low speed and compressor clutch engaged again for about 2 minutes this time. Fans to high speed again for 3 minutes, then compressor engaged for only a minute. Each time the compressor shut down, both fans would go to high revs. The minute they would go to low speed, the compressor clutch would engage and I'd get nice cold air..
Just had the expansion valve replaced and r134a charged by and AC shop last week. I have had the on/off AC problem for months and then could not get the compressor to engage at all for about one month. Of course, just as I was getting to the shop, it started blowing cold air.
Not sure whether I'm looking at an electrical problem or what. Just seems odd that both fans suddenly speed up and slow down and the compressor engages only on low speed.
The only other odd thing I've noticed is that cold or hot, as soon as I turn the ignition on (engine off), one fan continually starts cycling on and off. It does that continuously. I've checked the fuses on top of the battery and they all look fine. No appreciable drop in RPMs when the compressor engages. Fan control module?
Golf IV / Jetta IV :: Front End Clunk Almost Every Time When Suspension Flexes
So I've always had a clunk coming from the front end of my car since I bought it last year. It happens almost every time the suspension flexes. I'm pretty sure my steering is okay as I can turn the wheel quickly and/or forcefully back and forth with the car either on or off and there is no noise; the steering feels solid.
Here is the list of things I have done so far:
-Poly sway bar bushings
-Poly end link bushings
-Poly dog bone bushings
-Cup kit (Springs and shocks)Upper strut mounts & bearings
-Ball joints
-Raxles
After a quick look at my Bentley manual, it seems the only things left to do are control arm bushings (most likely in my mind) and sub frame bushings (less likely). Is there anything else I should check for possible causes that I'm missing?
Golf IV / Jetta IV :: Gear Takes Time To Pop Back In After Disconnecting
I'm bench testing my starter and wanted to make sure that it's working as it should before I install it. The plunger comes out and the gear spins as expected, but it takes a second for the gear to pop back in after I disconnect it. I'm worried that it might get stuck on the flywheel if the return spring isn't working as it should.
View 4 RepliesGolf IV / Jetta IV :: MK4 1.8t - Hard Time Starting When Temp Is Below Freezing
So I've had my car for 3 years now. I've done an emissions delete, replaced maf, diverter valve, coolant temp sensor, thermostat, timing belt kit, fuel filter, air filter, starter and battery (for another issue) have a 3" DP and replaced the O2 when I did that, valve cover gasket, spark plugs, tested another n75 in my car.
The problem: the car sometimes has a really hard time starting when it it way below freezing. When it's around cold, at freezing or under the car will start fine. But the problem starts after I back out of my driveway and take the clutch out and put on the gas. When I try to accelerate the car will not accelerate. You can have your foot pressed to the floor and the car will act as it's stalling out and sputter but it actually won't stall because the call will keep driving and then all of a sudden power will come back and it will take off. The situation can be remedied by either pushing the clutch in. The car will idle no mall or if when the car is sputtering I can tap the gas quickly an it will build up speed and the problem will go away.
Golf IV / Jetta IV :: Door Open Light Is On All The Time On Display
My door open light is on all the time. Doors are closed and no interior lights on.
View 3 RepliesGolf IV / Jetta IV :: Auto Transmission Does Not Seem To Shift After First Time When Speeding Up
I have an 04 jetty with an auto Transmission. It doesn't seem to shift after the first time when speeding up. What might cause this?
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