Nissan - 240SX :: 1991 - Overheating Intermittently - Temp Gauge Needle Rise To Danger Zone?

My 1991 Nissan 240SX (only 85K miles!) has an intermittent overheating problem that began last November. Needle usually right in middle, but occasionally would quickly rise to danger zone. In Nov., I got new radiator and pump, as well as all new spark plugs. Was OK for about 3 months, then started overheating occasionally. In shop a day and a half while they tried to find the cause. Gave me a new thermostat. Then test showed there was a leak in head gasket. Instead of expensive repairs, I put 8-oz bottle of K-Seal in cooling system. Reviews all over the web gave me confidence it would seal all leaks. But within 5 minutes, it overheated. Tried again later, same result.

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Nissan - Frontier :: 2002 - Temp Needle Near Danger Zone While Climbing Hills At 40mph / 2500 Rpm

I have a 2002 Nissan Frontier with a non supercharged 3.3L v6. The truck is a crew cab, long bed and 4x4. I have had this truck since I bought it used in 2004 with 26k miles. The truck now has 196k miles and I have done a little modifying to make it a bit more off road capable.

I have done all the work to the truck myself, until last fall when I finally broke down and took it to a dealer, who was not able to find my problem, but I will get to that...First of all, the truck has steel bumpers, a winch, a tool box, onboard air system and large tires, all of which make the little 3.3L work hard. However, for three years since I quit making modifications, the truck ran perfectly cool and the temp needle never once went above the normal operating position, even through thick sand at the beach, mountain trails and towing heavy trailers, until last summer.

Late last summer, on 90+ degree days, I noticed the temp needle would start riding above normal when I had the AC on. It didnt matter if I was on the highway, the city streets or idling in the driveway. When I turned off the AC the needle went back to normal. This started happening occasionally at first (once every 2 weeks) then towards fall it started happening more frequently, almost every 90 degree day. Soon after I noticed the problem, it would happen even with the AC off, but not get quite so hot.

After a few weeks of this, I started chasing the problem. I replaced the radiator cap, the thermostat (tested the old one and tested the new one before installing,) I took the radiator to a rad shop and had it boiled and flow tested, I replaced both coolant temp sensors, and then finally the water pump. When none of those repairs made a difference I built new radiator fan shrouds and that made no difference. At this point I was starting to get discouraged so I borrowed a scan tool from a friend and drove around for a few weeks with it plugged in. I was reading live temperature readings of the coolant and verified that the gauge was working correctly.

The truck ran about 200 degrees with the AC off most of the time, then, when I turned the AC on, no matter if I was sitting in park or driving on the highway, the temp would steadily climb until it got to 222 degrees and I would shut off the truck, at that point the needle was near the danger zone and according to several nissan dealership, the highest normal operating temp is 204, but it should stay around 195. At 205 degrees, the needle would start to move above the normal position, so the gauge seems to be fine. As summer turned into fall, the truck started running cooler as the days began to drop into the 70's. I finally got fed up with chasing my tail and took the truck to a dealer with my main concern being a blown head gasket or cracked head.

The dealership inspected the head and tested the coolant for hydrocarbons and said that the head and gasket are not the issue. They advised that the only other thing it could be is my fan clutch. After that dealership visit, the days were cool so I drove the truck all winter without changing the fan clutch. Then, 2 weeks ago, on a 70 degree day, I hooked up my truck to an empty trailer (maybe 1000lbs) and towed it 15 miles. When towing up hill with the AC on, the temp needle started moving. I immediately went to napa and replaced my fan clutch. Confident that was the issue, I drove the truck to the mountains for a camping trip last weekend. While climbing the hills at 40mph and about 2500 rpm, the temp needle climbed to the near danger zone.

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Elantra XD (2001-06) :: Temperature Gauge Needle Is Moving Up And Then Back Down

The needle is moving up and then back down. This mostly happens while at a stop and simultaneously the ac compressor kicks off.

Recently new radiator and temp gauge, plus coolant flush.

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Buick - Century :: Overheating - Temp Gauge Keeps Rising Until It Is In Red Zone And Warning Light Comes On

I have a 98 Buick Century, with about 250k miles on it. Recently when I first start the car and drive a few miles the temperature gauge keeps rising until it is in the red zone and a warning light comes on. When I pull of to the side of the road after a bit it begins to slowly drop and I can begin to drive again. The gauge will then normally stay a bit above halfway for the remainder of the trip, the gauge has sometimes done a bit of jumping around between 3/4 and half sometimes though. The only work that I have had done on it recently is to have some work done on the ac system.

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Hyundai - Tucson :: 2006 - Temp Gauge Going Into Red Zone When Idle Or Drive Slow Without AC On

Just had a new timing belt put in with water pump. Drove it home and the temp gauge flew up to red zone. Took it back they said air pocket in system. Bled the system. Drove home and same thing happened. Nothing changed. Temp gauge elevates past normal and into red zone when I idle or drive slow without air conditioning on. The weird thing if the air conditioning is on the gauge stays at normal longer. What is the issue? Is it a bad water pump or thermostat? Or something else.

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Sebring - Chrysler - Overheating :: Temp Gauge Starts To Climb Above Halfway Mark And Toward Danger Zone

Having an intermittent problem on my 2002 Chrysler Sebring LX (about 132,000 miles). Often I can drive around and everything is okay. However, it seems like every 11 days or so, the temperature gauge starts to climb above the halfway mark and toward the danger zone. Only once has it gotten all the way up to the red danger zone and illuminated the warning light, and that was the very first time. It was fortunate that this happened the exact moment I reached home and parked in my driveway.

When the temperature gauge starts to climb above the halfway mark, I've tried to turn on the heater to cool it down, but this doesn't work. The heater just blows cold air. So far I have been taking the following steps:

1) Stop driving and park the car for 10 minutes or more.
2) Fill the coolant tank under the hood with coolant. I'm putting in about half a gallon each time.
3) Continue driving.

After this process, the heater is again blowing warm air and the temperature gauge is staying at a safe level. It seems to persist for about 11 - 14 days then the cycle starts all over.

It happened last night following a drive of about 5 miles home from the gym. Since I had no more driving to do that day, I just parked it overnight to see if this was a fluke and if it would be necessary to add more coolant.

This morning I drove the same 5 miles. Temperature gauge stayed pretty low for about half the trip, but then rapidly shot up. I got to the gym before it reached the danger zone (it was probably about 3/4 of the way up). I parked for a little over an hour while I went inside to exercise. Then I again added half a gallon of coolant and drove home without problems.

The last time I had overheating issues, the coolant rapidly spilled out of the bottom and the overheating was not preventable. I got the radiator replaced. This was in October 2013. I've also tried some of that stop leak fluid. It didn't work, but I'm not so sure I used it correctly. I didn't flush the tank and I think I might have poured it in on a normal driving day (coolant pretty full).

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Elantra XD (2001-06) :: Fuel And Temp Gauge Would Either Be High Then Go Low

I replaced my battery. Once I connected my new battery, my fuel and temperature gauge started working strangely. They would either be high, then go low, then go back high. My interior lights, clock, and radio stopped working. Could it be a relay? I checked all the fuses with a test light and they all looked good.

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Hyundai :: Smells Hot / Temp Gauge Needle Always Stays Mid Point

After about a 5 mile drive my '05 6 cyl Santa Fe always smells hot. The temp gauge needle always stays mid point. Coolant is good and is changed regularly. No oil in coolant or coolant in oil. No cracks in recovery bottle or hoses. All hoses tight, has been pressure tested and is ok. No heater core leak, no visible leaks anywhere in the engine compartment or under the car and no green patches on the radiator. After about a week of driving the recovery bottle level is down about 3/4" but the radiator is full to the neck. Where the coolant is going and how to locate the source?

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Elantra XD (2001-06) :: Temp Gauge Goes Over Normal Line But Car Never Actually Overheats

Fluctuating temperature gauge? In the past few weeks I have noticed that my temp gauge goes over the normal temp line but the car never actually overheats. This doesn't happen all the time and only every once in a while. Today however, the gauge went very high and I immediately put the heat on high and it slowly dropped to normal again.

I had a water pump replaced several years ago and last year had the thermostat replaced as well. The only thing I have had done recently was an oil change at one of those convenience stations. During the check-point, I was asked if I wanted the filter changed that filters the air coming into the car. I said no, but now wondering if they actually disconnected something when checking for this. The reason I'm bringing this up is because sometimes I don't get hot air when the heat is on or cold air when the a/c is on.

After reading online more about this, I read that a faulty Temperature Sensor can give a false reading. Just added some water to the radiator but not much...so no leaks that I can see.

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Honda - Accord :: Overheating After A Trip Of About An Hour - Temp Gauge Needle Going Way Up

After a trip of about an hour to the Fryeburg Fair yesterday I noticed my temperature gauge needle was going way up. I was able to park my car and went to the fair for about 4-5 hours. Before we left I checked the coolant level as the car had cooled off enough to take the cap off. The coolant right to the top and was green. I checked my oil level and that was fine. On the way home my son suggested that I turn the heat on. I did so and the temp gauge went down to normal and stayed that way all the way back home to Lewiston, Maine. I'm thinking it might be the thermostat but thought I would for any other possible reasons my car is doing this. The car has about 216,000 miles and I did have the thermostat replaced a couple of years ago.....???

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Civic - Honda :: 1998 Overheating - Temp Gauge Needle Popping Up Higher Than Usual

Well, I'm still driving the same old 1998 Honda Civic DX two-door coupe, and I've got a problem with overheating. The temperature gauge needle doesn't get quite to the red, but it's popping up higher than usual, and I'm concerned to see it getting anywhere near the red. It usually spikes when I get off the highway and stop at a light, but it also does it occasionally in a drive thru, and recently, I discovered that when I give it a little gas in neutral, it brings the temperature gauge needle down to normal.

Here is the history of recent repairs and troubleshooting:

-About 3-4 years ago, I had a leaky radiator replaced, so the one that is in there isn't very old.

-Last year I had a mechanic replace the thermostat, the radiator fan, and the radiator cap when I started having this problem.

-A few months ago, I had the timing belt serviced (the entire kit, not just the belt), but since the water pump looked fine and the car has so much mileage (275,000 miles), I opted not to replace the water pump. (I regret that now. I usually replace the water pump with every other timing belt, but I've learned my lesson.)-I've been to several shops to get a diagnosis, but they have a hard time getting it to overheat at all, so they can't diagnose it.

One guy suggested the water pump might be worn out (inside, without leaking outside). Another guy suggested that "if it was the water pump, you would know it's the water pump." Each mechanic has done a pressure test on the cooling system and a flow test on the radiator, and they all say they are fine. One mechanic theorized that I might have a very small head gasket leak, but nobody else thinks that is the case and there is no sign of coolant and oil mixing. Besides, the temperature gauge has never been in the red.

-One mechanic who tried to diagnose the problem recommended replacing the plugs, plug wires, rotor, and distributor cap. After doing that, it is running better than it was, but that didn't resolve the overheating problem. He also retarded the spark timing, but it is self-adjusting, so it re-advances itself after a couple days of driving. I can hear what sounds like minor knocking, but it's always made that noise since it was new.

-Everyone who has tried to diagnose the problem says the thermostat is opening and closing as it should, and the radiator fan comes on and shuts off when it should.

I'm done getting second and third opinions, and I'm ready to start throwing parts at it. Do you think I should start with the water pump? What are your thoughts? Don't tell me to replace the car. I just bought a new motorcycle.

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Elantra XD (2001-06) :: Temp Gauge Spikes At Long Idle In Hot Weather But Drops Quickly Upon Driving

My 2005 Hyundai Elantra GLS has had 0 problems. It has about 132K on it, but it's still awesome.

I was stuck in some nasty traffic the other day in 95 degree NC weather, and was idling for about 15 minutes with the AC on. Out of nowhere, it felt like my AC got warm and I saw my coolant temp gauge spike from just under midway to 3/4 of the way. Unsettling.

As soon as I got on the gas and drove for about 5-10 seconds, it dropped precipitously back to normal. I was able to recreate this behavior once I got home. Normal driving results in normal temperature. Both fans appear to running.

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Elantra XD (2001-06) :: 2002 - Speedo Needle Jumping While Driving

I have been reading alot about the speedo needle that jumps on the 2002 elantra gls while driving. My speedo is doing the same thing and I have been told it could be the VSS , the auto trans sensor, the vss sending unit. speedo gauge etc. Which sensor to start with or how to test ? I assume they are on the tranny cover which I have not looked at yet.

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Elantra MD (2010-15) :: 2012 GLS - Temp Gauge Fluctuating And Overflow Was Really Low

My son recently bought a 2012 GLS. The temp gauge was fluctuating and I noticed the overflow was really low. I added coolant and warmed the car up with no change. After it cooled a little, I cracked the radiator cap and heard bubbling air. Upon complete removal of the cap, I saw no fluid, however, the cap is above the radiator where the hoses connect. I added coolant directly to this opening until I could see it. Closed everything up and warmed up the car. Temp gauge is now steady 1 mark below half way. The question is, did I add enough coolant? and should I see coolant inside the radiator cap when the vehicle is cold?

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Golf/GTI VI :: Temperature Gauge Go Up Into The Warning Zone

I JUST got my brand new 2011 gti this wednesday, which I am obsessed with. When I was driving around earlier yesterday however, the temperature gauge started to go up and into the warning zone. a message on the dashboard then sed "check engine coolant see manual".

So i did, and according to the manual everything should be running perfectly fine. So i pulled over till the engine cooled down to normal, then after about a mile it happened again, and it kept overheating every mile. I got the car towed by vw to a dealership nearby, but they're closed on sundays so i have to wait till tomorrow.

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Ford - Taurus :: 1995 - Within 5 To 10 Minutes Overheat / Temp Reach Red Zone?

I own an old 95 Ford Taurus and have been having problems with it over heating. We have replaced head gaskets, there was a small crack got that repaired. We also replaced the radiator cap. I just replaced the whole radiator. Has new radiator hose too. The needle reaches all the way to the top line right before reaching the red zone within like 5-10 minutes of driving. It will eventually go back down but maybe just to between the o and r the gauge is vertical. I don't know what else it could be and can't afford to get another car at the moment. When i get home the reservoir is full and radiator is hot. After maybe 15-20 minutes of having the car shut off the water is sucked back in to the radiator.

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Trans Sport :: 3.8 GT - Low Oil Pressure On Dash Gauge Stays In Red Zone At Idle

I just noticed the oil pressure gauge on this Pontiac TS GT stays in the red zone at idle and climbs a little out of it at 2000 rpm and higher (never over the first unit). There's no other warning light or error in the dashboard - just the scary oil pressure gauge.

We brought this car home for repairs after a 600 km trip (370 miles) without any issues in mountain roads or hot weather. Engine temperature was well below the first quarter mark, acceleration was great and there was no strange sounds whatsoever...

When first started cold engine has no lifter or tapping noise. What would be the most obvious sign of oil starvation/low pressure on this engine?

Is there any way to confirm it beside the dash gauge? With this 3.8 engine what would be the most probable cause for this:

1. defective oil pressure sensor
2. failed oil pump
3. worn crankshaft bearings
4. worn camshaft bearings or other cause

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Eclipse - Mitsubishi :: Temperature Gauge Went Close To Warning Zone - Coolant Leak

I was driving and noticed that my temperature gauge went close to the warning zone so I blasted the heat and it went back down. When the car cooled I popped the hood and noticed that the coolant reservoir was pretty close to full but I couldn't see any coolant in the radiator. I filled the radiator with water for now but it looks like it gone again. I cannot spot any actual cracks or leaks on the hoses but I did spot a puddle of coolant in the groves on top of the transmission. The closest hose I can spot next to the puddle is the lower radiator hose but I really do not know too much about cars. I also noticed a hissing sound today coming from the radiator cap, which I am going to replace. Where the leak could be which is causing the puddle on top of the tranny?

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Malibu - Chevrolet :: 2001 - Temp Gauge Not Working

My 2001 Malibu v-6 temp gauge is not working. I have replaced the temp sending unit and it works for a few weeks unit it goes out. What keeps killing the temp sendor?

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