Jetta - Volkswagen :: 1996 / 2.0 - Temp Gauge Falls Below 150 And Heater Gets Cold
Dec 9, 2011
My Jetta runs great in the summer and all seasons around town... the temp stays around 195 or so, the heater works ok, etc. When I get on the interstate however (now that the temp has dropped) , the story changes. The temp gauge falls below 150 and the heater gets cold. I assumed the thermostat was stuck open, so I replaced it but it didn't solve the problem. I called a local dealer and on his recommendation, I replaced the Engine Coolant Temperature (ECT) Sensor. That also didn't solve the problem. I have had cars overheat in the past, but never one that overcooled! Wy my car cools too well at highway spheeds? It affects my gas mileage and makes for an uncomfortable ride on cold days!
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On my way home from work I noticed that my heater was blowing cold air. then I checked my gauges and noticed that the temp gauge was moving toward hot. pulled over on side of road car died on me. Husband pulled car home replaced top water hose. Now my car will not start.
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I did an engine swap for a junkyard motor my 4.0 ohv had a very bad rod bearing so I got one from the junkyard with 117,000,or so they say.Anyhow, after its all said and done it runs perfect except the temperature gauge seems to not get as high up on the gauge as before after sufficient driving(it used to run about middle of the gauge) it drops low at idle then goes up and stays up then goes down.it still has good heat, doesn't seem as good as before tho.I changed the thermostat also.
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I have a 1996 VW Jetta GL 4 cyl. 2.0L. When the temp. start to warm up the car won't start. I don't know if its the temp. outside, or in the cabin of the car. all the dash lights turn on, and accessories turn on. sometimes I hear a clicking noise, which I think is the sound of electricity going to the starter. I have replaced the starter, alternator, & battery. I had a family friend mechanic look at it for about 3 hrs. and he couldn't figure it out. I have a suspicion that it might be the ignition switch faulting out, but how would I know for sure with out taring apart the steering column?
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02 6.8 4x4 excursion. When I start the truck cold, the trans temp gauge immediately moves to "running" temp. Not really sure how this happens, I'd figure that if the xducer was trash it would ride all the way high or all the way low. What's happening here? I'd sure like a functional gauge...
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Ford crown vic, 1999, 125k miles, no engine work has been done, did flush cooling system in spring of 2013 and put in a 50/50 mix of coolant and distilled water (from a jug). No problems for the summer of 2013, have been using heater with no problems until around Tuesday of this week.
Car runs fine, no leaks, coolant checks out good. BUT now.. My temperature gauge hardly moves (up) and the heater blows warm air only. If I am driving the gauge will not move, if the car sits running for awhile it will move up some and the heat will get warmer inside of the car. My guess maybe a stuck thermostat?
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The other night I passed a car overheating (Subaru) and checked my temp gauge and saw my needle was gradually climbing towards the half mark. This is not normal for my 96 Honda Accord. No lights coming on, so I blasted the heater and needle immediately returned to it's normal position. Filled the coolant, it was low, but the problem remains if the heater isn't turned on to at least 3. This doesn't seem extreme enough to be the thermostat. Could my fan be out?
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My 2002 Volkswagen Cabrio won't start when it is hot, only when it is cold. Several times in the last few months, similar experiences such as the following has occurred. Yesterday, I drove approximately 15 miles, ran into a store for about 10 minutes and went back to the car and it started. Then drove about 10 miles and shopped for groceries for about 45 minutes, returned to car and it started. Drove about 10 more miles and went into a store for about 30 minutes...car wouldn't start. The engine does turn over. As the temperature gauge descends each line, I try to start the car and it will not start again until the gauge is completely at the cold line. My husband has replaced the battery, both temperature sensors, changed the fuel filter, changed the ignition coil and the starter in March.
One other time it gives me problems which is different than the above scenario is I have driven the car just one or two miles and had it off for only two minutes to five or ten minutes and could not start it for an hour or so.
An OBD scanner at an auto parts store gives several code readings, some of which say it is the fuel pump primary circuit, cylinder 1,2,3 & 4 injector circuit low, secondary air injection system relay A control circuit, evaporator emission system purge control valve circuit is shorted and, finally, evaporator emission system leak detection pump control circuit low. I have had readings done before by an OBD scanner and the problem didn't have anything to do with what the scanner said so I don't have much trust in those readings.
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the car 07 passat wagon fsi auto value edition.. This is my first winter in Maine and I've noticed by 35 degrees F and colder when vehicle is at operating temp and then I use the cabin blower say 72 degrees or hotter on fan speed 2; causes engine temp to drop maybe 10-15 degrees. Car reaches operating temp quickly! And coolant concentration seems right!
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I recently replaced my alternator. I thought I was very careful not to make anything worse but now when I'm driving I have temperature issues. When stopping or slowing down my temp. gauge goes all the way to cold, then as I accelerate the temp gauge rises to the middle. It has not gone past the middle and has never done this before the repair. Also, the truck has never overheated or had any thermostat or cooling issues before.
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Alright so noticed the other day that my temp gauge was staying pinned at cold. every once in a while it will jump up to the normal range but not for more than a few seconds to a minute before it drops back to cold. I just bought the car so I've still got a warranty from the dealer and im fairly convinced that I don't have to bee too concerned with it over heating because when the gauge DOES register its saying normal. just thought id ask here before i drive the 2 hours back to where i bought the car.
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I have a 1991 Silverado C1500 and when I push the heater button to on, the thing just goes absolutely crazy. Instead of one little indicator light, that is suppose to show hot, it lights up all the way across, like a pinball machine that has tilted. The heater air does not get hot and the temp indicator on the dash (separate guage) will not move off of cold. I am going to replace the thermostat, but what is going on with the darn temp gauge?
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I have a 2001 Excursion Limited V10. 146000 miles 2 wheel drive. I have had it about a year and this is my first winter to really have experience with her.
When the outside temperature is very cold and the engine is cold from sitting all night, at start up, the oil pressure gauge reads nothing and the oil pressure/temp idiot light is on. Only does this during the first very cold start up or after sitting and engine getting very cold again.
I can drive just a short distance (2 blocks) and both gauge and light go to normal and stay there for the rest of my drive. I am using a quality 5/20 oil and filter and the level is good. Warmer days it has never happened. Truck runs fine, smooth idle, no "limp mode". She has not had any recent work done. All the other dash gauges read fine.
There is something about really cold temperatures that have to be causing the issue , I think. ??
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I have a 95 ford f350 when u run it with the heat on the truck temp gauge says its overheating the heat will go from nice and hot to ice cold as soon as the temp gauge goes up to the red. I replaced the thermostat also checked for coolant leak cant find any but truck has strong anti freeze smell and the radiator keeps going low on coolant.
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I just bought a 1997 Toyota Tercel 5-speed stick, with 175,000 miles, and the temperature gauge moves from its lowest possible position to its highest possible position when the key is turned on, although the engine does not overheat, and no coolant is leaking or being burned. I replaced the coolant temperature sensor, but the actions of the gauge were not affected. I don't know if it is somehow related, but the heater blows cold, regardless the setting of the temperature dial on the dash. What I might try next?
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On my 97 X SOHC, I have a temp gauge that is rather erratic. It reads high even with the engine off and cold and rises when the engine is running to the point the "Check gauges" light illuminates. Then bounces to normal then back near red line. This cycle continues.
To evaluate this, I bought a scan tool and the ECT reads as expected, around ambient to start, gradual climb till the thermostat opens, then hovers there while the radiator does its thing. Heater works as expected. So I'm fairly confident that my X doesn't have a cooling issue.
What my questions are: Can I disconnect the temp sender so I'm not watching the gauge bounce around and then the Check Gauges light is available for other issues that arise?
Does the check gauge light also send a signal back to the PCM?
Can I do any damage to the truck or will the PCM throttle the power back and flash the Check Engine light if a real cooling issue materializes?
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I am trouble shooting my temp gauge. I have a 1997 f350. I brought the truck a year ago and i have still not fix this problem. I install a new temp gauge and nothing changed. When ever the truck is running it reads cold and doesn't budge. Ive read that the gauge can be broken its self but during a few hot times over the summer. The gauge began to rise slower, never reaching normal temperature. A few times i messed with the heat and the gauge would shoot over the normal temp. The truck seems to run at a good temp sometimes hot though. The tube on top of the radiator is hotter than the bottom also.
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My 94 Ranger 3.0L 5speed 2wd temp gauge is staying on the cold side but the heater is working good and I used a laser pointing thermometer at the thermostat housing and got 180* after running for a while and I also noticed that the fuel economy had gone down along with the power. I was getting 340 miles to a tank but now I'm getting 280 per tank.
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I have a 2002 F-350 6.8L, 4x4, crew cab, 8' bed, SRW, trailer tow pkg. I purchased it new in the fall of 2001. The truck currently has 54,000 miles on it (only gets used when I need to tow/haul something). It's kept in the garage and is in near showroom condition.
Everything on the vehicle is 100% functional except the transmission temperature gauge. Even when the truck sits for weeks, the needle will move to mid scale as soon as the key is switched on - haven't even started the engine yet! Put the scanner on it - no codes stored.
I'm attempting to trouble-shoot the TFT (transmission fluid temperature) sensor. Found some documentation online on the 4R100 transmission. It shows an electrical connector on the solenoid body with pins for the thermistor (so I can measure its resistance). However, I can't find a connector anywhere on my transmission that even remotely resembles the diagram I found online.
Question 1: When you first get in your vehicle and turn the key, does your tranny temp gauge read "cold" just like the engine temp gauge?
Question2: Does my truck have the 4R100 transmission? How can I verify that?
Question3: Looking for documentation on what connector and which pins are for the thermistor?
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I noticed on cold mornings (40-50s) the gauge does not go half way even driving 30 minutes, about a bit more than 1/3. In the afternoon or most of the time it points to about middle.
Is the gauge that sensitive or there is a problem with the thermostat? The thing is I don't feel the car is slow to warm up normally, I rarely heard of thermostat problems on a Toyota until a whole lot of miles. I wish I have one of those ODB2 logger now and maybe it reads the coolant temperature.
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I have a 2001 Miata. It's been over 100 degrees daily lately. The AC will blow sort of cold for about 30 minutes and the temp gauge will move towards the H hashmarks. If I turn the AC off, the gauge will slowly drop. I've also noticed that the amount of cold air is decreasing as time passes. In fact, the other day, the system was blowing air hotter than the outside temperature after about an hour drive.
The viewing glass has bubbling stuff flowing thru it. The recently flushed radiator is full as is the overflow reservoir.
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