Golf IV / Jetta IV :: Error Code P0501 Even If Speedometer Is Working
My car (jetta 2002 1.8t) have the error code p0501 even if the speedo is working. I replaced the speed sensor just to make sure.
If I erase the code, and drive no matter how far/fast I go, the check light doesn't turns on. But as soon as I turn of the car and drive again it does comes on.
Golf IV / Jetta IV :: MAF Sensor Fault Code - No Crank Or Start
I bought an 05 golf GL with a 2.0 and 5 speed in January for commuting to work.
Well, recently. I was on my way home from work, I'm an engine tech for Cummins Inc, and I notice my CEL came on and the car stalled multiple times at red lights. So I limped it home, connected my scanner and the fault was "Implausible signal from Mass Air Flow sensor". I cleared the fault code and tried to start the car. Nothing, no crank no start. Just an audible click from under the hood.
I disconnected the battery for 5 min reconnected it and it started fine. Drove it to work the next day, no issues. I tried to start it again and nothing, CEL was on again for the MAF sensor. I pop started it, car ran like hell, rough idle, low power, etc. luckily I have a dualy that I can drive in the mean time.
Golf IV / Jetta IV :: Engine Will Turn But Not Fire / P0441 Fault Code And Gas Cap Warning Light
After running to operating temp, if the car is turned off then restarted (like you would at a gas station, which is where I notice this) the engine will turn and turn and turn but not fire. I have noticed that stomping on the acceleration will cough it into life during this procedure. This doesn't happen every time and I have recently run high octane gas during a long distance trip.
106K miles...
Recent p0441 fault codes and gas cap warning light...
No other problems or codes...
Golf IV / Jetta IV :: CEL Code For Bad Coolant Temp Sensor?
So my check engine light came on in my 04 jetta sw, and when I had the car read, it gave me a code that tracked down to be a bad coolant temp sensor. I bought the replacement part from my local VW dealership, installed it and the check engine light went away. Now about 2 weeks late it came back on, and I am getting a reading of "Coolant temp sensor high voltage". So it goes from needing replaced, then the replacement is running high voltage?
View 3 RepliesGolf IV / Jetta IV :: 2000 - Coolant Is Leaking
When my 2000 GTI VR6 sits for a week or two the coolant will run low. There are no leaks that I can find. No coolant in the oil. The crack pipe looks dry. Nothing from the thermostat hosing that I can see. The carpet by the heater core is dry. Nothing that I can see. The thing that is funny is I can drive the car with it 100 degrees outside in Georgia and have no problems with the coolant getting low, or any signs of a leak, smoke or smell. The head gasket and every gasket except the oil cooler and oil stand gasket were replaced about two years ago. The heater core was also replaced at the time. I gave the front pulled loose so I can pressure test the system and look more today.
View 1 RepliesGolf IV / Jetta IV :: Code P2181 Come Up Twice - Small Coolant Leak And Some Oil Mix?
Had a P2181 come up twice now... both on startup on a cool morning. Came on again this weekend. Monday morning I noticed a small coolant leak under the front of the car directly in line with the passenger headlight, but it only leaks if I park the car with the front down a slope. I parked uphill on Monday night and no leak in the morning, but I backed in facing downhill on Tuesday and had a small leak when I checked late last night.
So, last night I broke out the UV/black light -- G12 seems to fluoresce yellow'ish. I couldn't see much, so it is a small leak. There is some wetness on the bottom passenger side of the rad that's dripping over the back side of the front bumper/lip. No wetness around any other hoses, thermostat housing, temp sensor, turbo lines. But that's all from the top view. No time yet this week to get it up on stands to pull the bumper/splash shields for a closer look either.
I am little concerned tho as there's some wetness around the valve cover and when I pulled the oil cap my eyes suggested a bit of fluorescence under the cap and inside the valve cover. I'm a little worried oil and coolant may be meeting up somewhere... And to think... I was just in the process of getting geared up to do brakes and plugs before getting a modest tune (stage 1).
Golf IV / Jetta IV :: CEL On For Code P2181 Coolant System Performance
Like the title states, I've got P2181 (coolant system performance) CEL on again. I've had this code before and finally had everything serviced. It was off for 5k miles! I've spent a lot of time diagnosing this on the previous occurrences, and was 99% certain it was the thermostat due to the coolant temp dropping a notch or so when engine braking* on the interstate for more than a few seconds.
The current issue is mainly that the car will not heat up quite as fast, but it will not go lower from engine braking for a good chunk of time. I'm getting fairly poor MPG compared to what I was getting a month or two ago. The major changes are winter fuel blends and winter tires, which I'm sure affect the MPG a little, but I would hope not as much as I am seeing. Old average was around 27mpg combined and 30 or so for mostly highway, now I'm getting 24 tops. This is likely due to engine temps not being up to allow for most efficient fuel burning.
First plan is to change the CTS and see if that will fix it. If the code comes back after that, I'll have to check the thermostat and coolant mixture, but I wouldn't expect it to last only 5k miles.
Current: 105k
Thermostat and coolant changed at 100k
Water pump at 80k
CTS sometime around 70k
Engine braking lowering temp due to no fuel being ignited and coolant still circulating through the system if thermostat open.
Golf IV / Jetta IV :: 2000 - Coolant Leak When Driving?
My 2000 jetta glx is leaking coolant fast enough to empty the reservoir from full in about 10 minutes but only does it while running. Why this is or what I should look at fixing?
View 2 RepliesGolf IV / Jetta IV :: 2000 VR6 Started Leaking Coolant And Getting Way Too Hot
So over the weekend my 2000 jetta VR6 started leaking coolant and getting way to hot. So i parked it at work and eventually got it towed to a friends shop. I haven't looked at the car since then so bear with me on the descriptions I'm giving as they are just what he told me over the phone. I'm going to try and get to the shop in the morning to check it out some more. He says I have a leak in 2 hoses that look like they are just rotted out.
First hose he says "Comes from the back of the head and is about a half inch wide. it goes into a Y and then the top half goes into a smaller hose." The 2nd hose he says "on the top of the coolant bottle there is a line that goes across the back of the firewall then comes into a rubber hose and from that hose their is a T going into other places."
Obviously that's not a lot to go on. and when I'm looking at replacement hoses at shops online I'm not seeing ones that match these descriptions really. I've been looking for a diagram or some kind of illustration of these hoses so that i can send it to him and he can figure out which ones they are but I have not been able to find one.
Golf IV / Jetta IV :: 2000 AWD 1.8t Overheating - One Side Of Coolant Line Hot
After finally getting some issues sorted this weekend (needed a transmission flush) I was driving around a bit to make sure everything was good. On the way back to my house, the car started overheating. I replaced the thermostat this winter (~4-5 months ago) because it was stuck open making things run a little cool.
I was thinking the water pump is probably shot but not 100% sure. the radiator fans both work and when I turn on the heater, it blows hot. Any good way to check if the water pump is dead? I have a little point and shoot infrared thermometer and one side of the coolant line was way hot and the other was fine (cold ~90 deg F).
Golf IV / Jetta IV :: 2000 - Coolant Boiling Inside The Engine?
VW Golf 2000 2.0 GLS engine auto. 158,000 km
Observation 1: The coolant flange broken 3 times, which appear to be caused by pressure inside.
Observation 2: I drove it today to see the problem. During normal driving upper hill, the temperature turned to be higher than normal. 1 or 2 minutes later after red light, I turned off the engine. And then driving for 2 minutes after the green light, the temperature read appeared to go back to normal (a tiny bit higher than normal). Further driving 5-7 minutes, the temperature reading went to the high end again. So I stopped, opened the engine cover and can hear water boiling sound inside the engine. The coolant in the expansion tank was much higher than normal (above the maximum). The coolant is Prestone (not G12).
I would guess that coolant is not flowing inside. But the problem appears to occur randomly. A water pump issue? (replaced at 90,000km) Or could be the thermostat? Why cannot the pressure be released automatically?
Golf IV / Jetta IV :: 2000 - Loosing Coolant - Loss Of Water?
My mate has bought a mk4 golf and it is loosing coolant. There is no obvious signs of a water leak the car starts fine, goes up to temperature fine, only time the temperature rises is when the car has to work harder. (going up hill) then returns to normal.
Left the car today for a couple of hours and went to check the coolant level and the system was still under pressure when opening the expansion bottle top. There is signs of rusty water around the cars panels where the expansion tank is located. Previous owner said that it used 4 litres of water on a 330 mile round trip. previous owner said it could be the head gasket but there is no cream on oil filler cap.
There is no sign of water leaking from the heater matrix inside the car.
"2000" y reg mk4 golf 115bhp 1.9 gt tdi all standard
Golf IV / Jetta IV :: 2003 - Code P0118 / Coolant Temp Sensor Replacement?
I recently got the solid check engine light for my 2003 VW Jetta 1.8T GLS. I used a bluetooth OBDII dongle and Torque Pro to pull the code P0118. This seems to coincide with my symptoms:
Car idle at start in park stays around 1100RPM then in reverse it drops to 1000RPM then back into park and it stays around 900RPM and keeps that at idle.
If I start the car then immediately reverse out of my driveway then the car has a very rough idle but if I wait around 5 seconds in park idle then reverse out of my driveway it is smooth.
My car dash thermometer stays pretty close to the bottom low then after about 4-5 minutes it shoots up to 190F and stays. Gas mileage is also very poor.
I looked up a tutorial which shows the parts needed and how to replace the sensor : [URL] .....
I removed the engine cover and believe I found the coolant temp sensor in the spot the tutorial shows. My question is if there is anything I should be aware of before attempting to replace this sensor that this tutorial doesn't cover? I took a screenshot of what I believe is the coolant temp sensor.
Golf IV / Jetta IV :: 2000 GTI VR6 - Coolant Leak / Smoke And Starts To Overheat When Idling
I have a 2000 vw Gti vr6. It leaks coolant smokes and starts to over heat when idling. Does fine when driving down the road. It has a new radiator. When pressure tested I can see a little stream of coolant coming out. But there's no space in the engine bay and I can't see exactly where it's coming from. Like I said it only happens when it's Idling for an extended period of time. It does fine going down the road.
View 3 RepliesJetta - Volkswagen :: 1990 - Idling Very High - Leaking Coolant - Speedometer Stopped Working?
Ok, I own a 1990 Volkswagen Jetta GLI that I bought from my neighbor about 4 months ago, and recently, it started having problems. It's idling very high, around 1,500-2,000 rpms, it's leaking coolant, not from the bottom of the reservoir but from the top, and it's slightly overheating. Oh yeah, the speedometer stopped working. I've recently taken it to the shop twice, the first time to get the reservoir replaced, and the second time to get radiator replaced.
I have had problems with it stalling in the middle of the highway during traffic because it over heated. I commute daily to and from college and I want to make this car last as long as possible as I do not have the means to buy a new car. I have noticed that there seems to be a build up of air in the reservoir. I witnessed it leak, and there was a hissing sound coming from it. Also with the speedometer, the light doesnt turn on for it and that there is a clicking noise coming from it. Any tips?
Golf IV / Jetta IV :: 2000 VW 2.0L - Code P0102 (MAF Circuit Low)
I keep having the P0102 (MAF Circuit Low) code come up. I've replaced the MAF twice already. I also have the P0113 (Intake Air Temp Sensor) which has been replaced as well. Could the breather hose coming off the Intake Air Duct leading to the oil cooler cause this.
View 1 RepliesGolf IV / Jetta IV :: 2000 - Low Rough Idle But No Code
I have a 2000 jetta 2.0, and the idle seems to rough and when I start the car it seems like I might stall.
View 9 RepliesGolf IV / Jetta IV :: 2000 - Cylinder 2 Misfire / Pending Code P0302
2000 Jetta 2.0 cylinder 2 misfire. Replaced plugs and wires. No check engine light but code is pending and there's still a misfire. Need to smog
Replace coil pack?
Swap fuel injectors and recheck?
Golf IV / Jetta IV :: 2000 GLX - Intermittent Start And Stall / Pending Code P0321
My wife drove the car to work, and it ran good. She got a check engine light, but it was not on when I got home from work. I started the car and it idled fine for a couple of minutes and then it stalled. I check the codes and there was nothing locked in. There was a pending coding P0321. I am not sure what a pending code is, but I assume not enough to trigger the check engine light.
After work each night this week I tried troubleshooting but I have not gotten anything accomplished. Each night the car would start fine but if I turned it off it would not start until many tries if at all. It turns over strong but won't start. I drove it around the neighborhood today and it stalled and wouldn't restart.
The fuel pump primes. When the car won't start the fuel pump relay clicks constantly. Is this normal? I replaced the fuel filter because it has been 50k miles. Is the crank shaft sensor the problem? I hate to throw money at parts that aren't the problem when I can't get a code to trip the check engine light.