Passat (B5) :: 2004 - Temperature Gauge Seems To Bounce Up And Down A Bit
Dec 11, 2010
I just picked up a 2004 1.8T 5 speed 4 motion. It drives well, however i noticed some bugs. For one, the temperature gauge seems to bounce up and down a bit. I check the vag, and the car never gets abobe 75c, and usually sits around 70c when im cruising on the highway. So i changed the green top sensor to start, and I think it may be wrong, cause now the engine fan always stays on, and the temp problem is still there. SO now I have this fan issue, and still a temp problem. Did I change the wrong sensor totally? Is it my thermostat?
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I have a 99 Passat GLX VR6 and the temperature gauge basically works when it wants to. Of course the darn thing works when I take it to the dealer to get checked.
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Recently (3 months ago) I had the timing belt, thermostat , water pump changed . Just yesterday I noticed that the engine temperature gauge was all the way to the left and did not seem to be functioning. I do not know if it had been like this for the 3 months since the maintenance work....maybe not. But, the guage is not working.
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I have a 2012 Passat 2.0 TDI (140) DSG
Sometimes the engine temperature stays low for an entire drive. Regardless of speed - it has happened while sitting in traffic for hours or while sitting at 70mph.
When this is happening, the engine temperature gauge will go up and down, but never reach 90, and the oil temperature reading fluctuates from around 60 to 80. Also the air into the car doesn't get hot enough, but now we're out of winter that doesn't matter too much.
But then other days it will be 100% fine - it rises up to 90 within 10 minutes of a cold start and stays there the whole day - and the oil temperature sits between 90 and 100.
I've taken it to a couple of VW dealers but obviously it behaves perfectly on those days! I remember reading something about a thermostat that circulates coolant to the DSG box, which can cause these kinds of symptoms?
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Typically after driving for 5 minutes or so my temp gauge is in the middle at 200f. After about 15 min of moderate 35-45 mph driving it went down a notch below the 200 mark after it had reached 200f. I've noticed this happen a few times recently. I did notice that it happens while coasting downhill. I guess i'll be taking it it to my mechanic to take a look.
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02 Passat 4Motion with the 3.0L V6. I just had the car at the dealer 2 weeks ago for the 50K service and to have the temperature gauge fixed. Otherwise, the car was running just fine. At the service, they replaced the water temp sensor, performed a fuel injector service and radiator flush (both recommended).
Now two weeks later, her car rough idles, dies and has to be towed to the same dealership. They first diagnose fouled plugs which they replace gratis. They then tell me the plugs fouled because the ignition coil and wires have gone bad and need to be replaced. They want to do an additional injector/intake cleaning service. They are offering to discount the services slightly. I'm still going to be out another $850.
I called Volkswagen Customer Service and they confirmed that the ignition coils were not covered under the recall.
Something sounds "off" to me. The car was running fine before the initial service. Was the dealer just being "nice" in comparing the plug replacement or did he think that they initial fuel injector service may have fouled the plugs? I don't really want to pay 2x for the same service and now the coil/wire replacement.
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For the past two days, the coolant temperature gauge has registered cold (far left) all of the time. Just the day before, it registered about center when the engine warmed up, it's typical location.
The vehicle seems to run just fine, and the coolant level looks good. Is it safe to drive it to a shop (~35 miles) to be fixed?
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I have a 2003 Passat and the engine temperature gauge will read 190 normally and then suddenly drop to almost zero, stay there for a while then head back up.
I purchased a temp sensor to replace the old but for the life of me I can seem to locate it. I know it's in the back or rear of the engine somewhere.
BTW, the car has the 1.8 engine.
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Last fall I had my radiator flushed and at the same time my coolant overfill canister with built in temperature guage sensor was replaced with a new unit. (The service station replaced the resevoir canister with a new unit in the engine compartment, because they felt the sensor is prone to failing after 7 years.)
Ever since, my temperature gauge needle on the dash will randomly drop (even when the car is up to FULL OPERATING TEMPERATURES) showing the engine being cooler than it out to be. In other words the needle drops signifying to a much lower water temperature. After a period of time the needle will recover back to the normal full operating temperature mark on the dash gauge.
What could cause this? Inside my radiator do I have a "diafram" temperature valve that could be failing /"sticking?" In other words could a temperature valve in the radiator be sticking at odd or random times??? I also notice that my heater does not put out the usual full furnace heat that a Passat is know for. The temperature is about 1/3 cooler now that we are into winter temperatures.
Is my heater core clogged?
Could the new coolant sensor in the new coolant overfill chamber not be working well? This whole situation began AFTER my radiator was flushed, and AFTER I had the coolant reservoir canister and sensor replaced.
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I have a '99 1.8T Passat. The coolant temperature gauge normally reaches operating temperature of 190 degrees within about 5 minutes and stays there. For some reason, after reaching 190, it sometimes drops by 20-30 degrees and is running cooler than normal. Once time it dropped down, then came back up again, while driving a steady 65 mph. The coolant level is full and nothing else has changed.
I guess there are a few possibilities: a thermostat stuck open too far, a failing temperature sensor, bad gauge, or loose connection at the sensor. The car has 145K miles and the thermostat and water pump were replaced at about 100K miles. What is going on? If it runs a little too cool, is that a big deal? How would I diagnose it? Where is the temperature sensor?
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Something strange started happening to my '04 Prius yesterday and it happened again today. We are experiencing unseasonably warm temperatures here in Western Oregon for October and when I left my house this morning at 6:30 am, it was about 55 degrees. I have a half hour drive to work on a mixture of expressway, freeway, expressway again and then the two-lane highway.
Anyway, yesterday (and today) when I'm almost to work, my temp. gauge drops down to 37 degrees. This causes that yellow light to start blinking indicating that the engine will not shut off because of cold temps. It will warm back up to 45 degrees a minute or two later. Why is this happening? It for sure is not 37 degrees outside. Is my temperature sensor going bad? Is this exhibiting the behavior of a sensor going bad?
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I have about 45,000 miles in my R and all of the sudden the fuel gauge is doing funny things. It seems that when i have about 1/4 of a tank of fuel left, the gauge will bounce around from almost empty to 1/4 on perfectly flat ground. Example i get out of the car with 1/4 of tank left and 60 miles till empty.
When I come out a few hrs later. It shows 20 miles, refuel and the gauge bounces. Yesterday it did it just below 1/2 a tank. The R is going to see my local friendly Vw dealer to see if they can figure it out. A few months ago had the 40K service done and I don't think this had anything to do with it.
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When taking our 2007 RX out of say a 72 degree garage to say a 90 degree day, it takes at least 10 minutes for the outside temp gauge to finally creep up to the ambient temperature. The gauge feels very sluggish at all other times.
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I have a 2009 Prius. Last summer I noticed that the outside temperature gauge was not working properly. I asked at the wonderful dealership I go to and no one knew anything.
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I've owned this Toyota Camry 2004 LE for two years now and this issue started couple of weeks ago , I the tempreture gague is always at cold , mean less than 25% . where it used to be always in the middle and at the 50% right in the middle . heat still works , have not tried AC yet , it is still in the 20-30s here in Minnesota . I am suspecting maybe a thermostat or some other heating cooling sensor somewhere .
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I have a 2004 Pontiac Montana with about 107500 kms on it (VIN: 1GMDX03E24D183870) and the coolant temperature gauge is not working properly. Sometimes when I start my van, the temp gauge is pinned at MAX temp and stays there the whole trip...other times it's pinned at MIN temp...and other times it seems to work OK.
When it's pinned at MAX temp, I check the actual temp that the on-board computer is seeing, by using my OBDII scan tool...and I get about 87 degrees C when I'm halfway into my trip (i.e. - when the van is at operating temp), which seems OK. All the other analog gauges are working perfectly.
I read a lot about the issues with "connector C305" on the Internet on the Montana vans...could this be the problem?
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I have a 2004 Honda Civic that has about 183,000 miles.The problem is that when I start my car in the morning, the car never totally warms up when it's cold outside (I live in VA), until I press the gas pedal and rev the engine. Until I press the gas pedal, the temperature gauge stays at cold, and the heater blows cool air. I've taken it to the dealer 12 times for the same issue, but they can never find the real problem.
They flushed the A/C hoses and radiator, replaced the radiator cap, installed an upper hose, installed head gasket, water pump, and while there, the timing belt. They've also "burped" it numerous times. Also, when I have the heater on and fan on high, the temperature gauge drops as I'm going down a mountain and not pressing the gas pedal. After driving, and I stop, it also slowly drops while idling for about 5 - 10 min.
When it's warmer outside, I don't have any problems, because I don't have the heater on. This has been going on for about 1 1/2 years now, and it's starting to get cooler again, so I need to get it fixed or sell it.
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I am having an issue with my speedo and the fuel gauge on my 2002.5 24v vr6. First it started with a speedo that would bounce and dance around. it went away then came back and so on for awhile. Then i notice the fuel gauge would go up or down and would flash that i need to fill as I would go around turns. Also the odometer doesnt work either. I know that the vss could be the cause.
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I have a 2007 f150 with the 5.4 in it and today I was driving it and my tempreture gauge randomly shot to cold and check engine light came on. Also can't even find the dam radiator cap due to too much plastic!!!
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My girlfriend has a 2004 Toyota Camry SE, 2.4, 4 cly, with 198k miles. All maintenance has been done per book guidance since she has owned the car. The other day the car began running really rough on her way home. as soon as she put it into park and lowered rpm the car stalled out. temperature gauge did not read hot, but noticed white steam comes from hood when i seen she pulled up, Opened hood let cool down and coolant looked nasty as heck. So I did coolant flush and replaced the thermostat as per advised from parts store. Did not make a difference because during test drive, half mile down the road, car temperature gauge was reading hot. Shut the car down waited 10 to 15 minutes and drove back home.
Altogether drove roughly 10 miles max in hot condition is stop and cool down and go again mode. Also note, this is the first time using a forum of this sort. Along with, I'm not a mechanic as some are, but I know my way around a tool box no problems. I'm on the verge of just ordering new water pump, belts, fans, fan relays switches, radiator and all since I'm going to be in there to fix it anyways.
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My 2004 RX330 which has gone many years without a problem suddenly has instrument panel gremlins.
I started the car a couple of days ago (it had rained during the day), and the airbag light did not turn off. Then the TPMS warning light came on, the water temperature gauge dropped to zero. The AC controls stopped responding. Since I needed to get home, and the car seemed otherwise fine, I drove home, after a few minutes the transmission "D" drive light went blank and the instrument back-light went to full brightness.
A few minutes later, all the warning lights went off and the back-light went back to normal. The AC controls still seemed to be off. A few minutes later the airbag warning light came back on, followed by the TPMS light and the back-light went to full brightness again. This cycle kept happening all the way home.
The next morning, hoping the problem had been some errant water getting into something, I started the car, opened the driver's door to get something and got back into the car, closing the door. The light showing the door was open stayed on. I put the car into reverse, the doors did not automatically lock as they usually do. I turned off the engine and restarted it, most of the other lights were off, the doors would lock; airbag & TPMS light came back on.
It has stayed that way, except I also get the A/T temperature warning light coming on periodically, and after some cycle it goes off.
I borrowed a car code reader, it does not seem to show any error codes. In reading some other postings it has been suggested that the Brake light switch is the cause, but the brake lights come on/off without any problem.
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