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.
I have 2002 Camry 2.4L (2AZ-FE Engine) Japan built. Lately, I noted the temperature gauge stay at the 4th mark when engine fully warm up (first mark is at bottom and slightly longer than the next few marks), is this normal? Which mark it is at when fully warm up.
View 1 RepliesLast 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.
I have a 93 accord ex sedan, 4 cylinder, automatic that I bought in August. I live in South Dakota & it's starting to get cold here. When I first bought the car the temp gauge was working fine in that it would move to the middle of hot/cold range. Recently, I've noticed the interior doesn't get warm for awhile, even after driving 20 miles. It blows warm air but it seems like it should be warmer. I've also noticed the temperature gauge barely moves, if it does at all. Most of the time it doesn't move or just stays on cold. I did some research on here & thought I would try to change the thermostat, upper & lower hose and the antifreeze. I'm hoping this will heat up the interior better because it's starting to get cold here & fix the temp gauge.
Previously, I had a 91 accord & that would warm up great, even when it was bitterly cold here. What would cause the temp gauge to do this? I'm even thinking about changing the transmission control module because I read on here that could cause the gauges to have wrong readings. The speedo & rpm gauges also seem to have wrong readings, especially in the mornings or when I first drive it. I used my gps & found the speedo to be off by as much as 10 mph. The other item I've noticed is that I only get around 23-25 mpg highway & on my other accord I was averaging 28-30 mpg highway. Not sure if this is related or not but thought the more info the better.
I have done all the basic maintenance-oil & filter, plugs & wires, valve cover gasket, air filter, tranny fluid but have never done anything with the heating/cooling system.
Tempature gauge on my 2001 sierra (4.8) has been running low for awhile. The highest it will reach is round 160. It's currently running rough/rich and bad mpg. I replaced the ECT sensor but didn't work. I'm not sure if there are two ECT sensors on this model. I don't think it's the cluster. Is there a second sensor I'm overlooking?
View 13 Replies1991 Ranger STX, 4.0. Had a leak from the rubber seal on the thermostat. Changed the thermostat (stat 195) and seal. Now my temperature gauge is not showing a constant reading, goes to half way and when the thermo opens the gauge falls down to a quarter. The gauge is cycling this way every time the thermo opens.
View 2 RepliesMy 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.
MY 2000 300M has a problem with the fuel gauge. When over 1/2 a tank and just under the full mark the gauge will randomly drop down to empty and turn on the low fuel light then go back to the correct reading and will do this over and over again. my mechanic has looked at the car believes it's the sending unit. Just wanted a second opinion before I spent the money for a fuel pump module for the car.
View 7 RepliesI have an 02 f350 7.3 power stroke...Yesterday I noticed the outside temp was reading wrong,it was jumping from 67 to 86 to 92 back to 67..Temp was prob around 90 with high humidity and my a/c was on..So I got to where I was going and when I restarted my truck to go home the fuel gauge dropped to empty(I just fueled the day before) and fuel light came on and outside temp still wrong on the overhead digital display...Are these two things related???
Stopped the truck restarted it and fuel reads correctly again....Went out today and fuel light back on and on empty...Outside temp wrong again,a/c is on .....I disconnected the batteries when I got home to "reset the system"if there is such thing, fuel gauge working but outside temp wrong..?? Where is the outside temp sensor ?could condensation be running onto the sensor and throwing off my temp gauge? Just strange that both these things happened at the same time......I don't think its a fuse or they wouldn't work at all. I should mention all the other gauges work correctly...
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.
View 4 RepliesI 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?
I borrowed a friend's small Toyota truck for a few days of easy chores, and made a point to check the fuel at the beginning: the gauge showed 3/4 full. Four days and only 25 miles later, when I got in to return it, I noticed the fuel gauge was not working, I'm certain there's no fuel leak, I would have noticed that: the truck had been parked on my property the entire time, driven only a few hundred feet from one spot to another moving firewood around, so I would have smelled the gas if there was a leak.
When I added a couple gallons of fuel, the gauge didn't budge. Once on the road, I realized that the engine temperature gauge was also dead - no change on the gauge after 10 miles. So I have two non-functioning gauges which failed on my watch. This may not be directly my fault, but as my friend is kind enough to lend the truck whenever I need it, my contribution is to provide maintenance.
Is there anything in common between the two gauges which would explain the synchronized failure? Or is this total coincidence? This one is outside my experience, so don't know where to start. It's a 4 cylinder, 5 speed manual, base model truck, about 150k, generally runs just fine. There are no other gauges, and I don't recall what warning lights there might be, but I didn't see any after I realized there was a problem. Would the whole instrument cluster die at once, or could this be something like a bad ground for the cluster? I don't mind investing effort into tracking down and solving a problem, but if it needs a new cluster, that will cost more than I'd like to contribute, yet the problem occurred while I was using the truck (gently). My total use of this truck for all the times I've borrowed it is certainly less than 300 miles, so I'm reluctant to fund the entire repair if this is something that just comes with age.
Having problems with the fuel indicator not reading full after a fill up. I have slowly filled my 2012 Passat TDI SEL till I can see diesel in the filler neck and the gauge still only shows 7/8 full?
View 9 RepliesHave a problem with the coolant gauge on their Passat? The temperature gauge on my 02 Passat sometimes reads normal (190) when I am driving and then all of a sudden it will drop back to 90. My first guess was the sending unit, but the dealer says it might be the gauge cluster too. I would think that if it was the gauge cluster the other gauges would act up too. ?
View 7 RepliesEvery now and then when I slow down the temp gauge drops about 1 notch below its normal 200 reading. It's nerver done this before. Car runs great and heat is strong. Is this a sign of a failing thermostat? If so, where is the thermostat located, is it hard to replace, and should I get OEM or is OTC ok? Car has 89K on it.
View 11 RepliesIt's been quite a while since I was here - which shows that my Passat has been pretty reliable recently. But now I have a problem. WHen I was driving home about a week ago, I saw the temperature suddenly drop all the way to the stop. I put on the heater, and the air continued to come out at regular temperature, so the problem was in the reading/display. I have a Scangauge, which I connected, and it showed the correct temperature (around 190), confirming a problem with the display.
I contacted the dealer, who first insisted that it must be the thermostat (then why do I get a reading of 190 with the Scan Gauge and why is the heater still hot). When I disagreed, they said it must be the sensor. When I pointed out that the Scan Gauge correctly shows the rise in temperature for cold and then show the temperature maintained at between about 185 and 195) , then they said it must be the gauge, which requires a new instrument cluster.
I went to a another service place I've used (not a dealer) and they insist that it must be the sensor, based on past experience. For this to be true, the engine must have different temperature sensors for the instrument cluster display than it does for the computer.
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.
View 3 RepliesI was recently given my first Volvo. Its an 88 240dl. While driving my temp gauge climbs up to the red and sometimes hovers inside of it. It normally climbs up at stop signs and comes down on straight always then climbs right back up close to red. When the gauge was in the red i stopped the car and popped the hood open to see that the engine was not actually overly hot.
first i replaced coolant. nothing
then i replaced the thermostat. nothing
flushed radiator. nothing
Today i finally had enough and decided to switch out the water pump with a new one hoping that it would solve the problem seeing as it still had the factory one on. It did nothing. the gauge continues to climb up. I did replace one of the two senders in hope that it would fix the gauge reading but nothing.
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?
View 13 RepliesI have a 2007 Sante Fe with the 3.3 engine. Having a problem with the Fuel gauge not reading correctly and a check engine light. The engine code indicated that the problem was with the sending unit in the tank on the "A" side (behind the driver). I checked with Hyundai and with a tech line service and they indicated that it was a common problem and I needed to replace both the "A" & "B" units to correct the problem. I did that and cleared the codes and it set another code indicating that the "B" unit was the source of the code. I pulled the "B" unit again and checked the wiring and the problem still was there. I switched out the units on the "B" side again with the old unit and the problem is still there.
View 4 RepliesI was going up a little grade a couple days ago and the engine suddenly quit, the temperature and oil light came on, the heat gauge buried on hot, and it threw a code. I pulled over and it was still idling so I made a U-turn but it was in limp mode and would only go about 10 MPH, so I made it home and put water in it so it's good now but it still says service engine soon. What is the code going to say and am going to have to pay to get rid of it. (the light). I have a new cap coming.
View 14 Replies