TrailBlazer :: 2005 - Low Coolant Temp Light / Gauge Sits Right At 210
Apr 4, 2012
I have been battling this for some time. The check engine light comes after a period of time from reset. I have changed the thermostat, temp sensor, coolant flush and added per MFG.
I am down to clutch fan. The temp gauge sits right at 210.
From what I can tell is the check engine light comes on because the engine reaches operating temp to SLOWLY. Im guessing because the clutch fan is spinning to early in the game.
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We have a 2005 Chevy Tahoe. Been running great. Has 140,000 miles on it 80% open road. Couple of weeks ago was highway driving and noticed the coolant temp gauge went all the way down to nothing, and then back up to normal (middle of the dial) This happened 5-6 times and each time as the temp rose back to normal, the transmission would lurch.
I took it to a mechanic who could not figure out what was wrong, but acknowledged it was running terribly. He said that was what he would try before going to a dealer. I agreed and the car instantly seemed to be running perfectly. Now a couple of weeks later, the coolant temp gauge is dropping again. It is not going all the way to nothing, and the transmission is not lurching. It goes down from half to a quarter and then back again. So something still seems to be wrong. Otherwise all seems to be well.
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I have a 2004 3.0 V6. The dash temperature gauge doesn't move just sits at the bottom 50C. (Canadian metric)...
I would like to locate the sender for the gauge to do a little testing. I removed a whack of plastic but nothing was obvious.
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The daughter calls and says her '06 Trailbazers oil gauge goes to zero and then the oil warning light comes on. The gauge then comes back up in pressure and the oil warning light goes out. No engine noise according to her. Oil changed a month ago.
This happened several times yesterday on her trip to town but then started working normally and didn't act up again. This sounds kinda like a sending unit issue except for the intermittent part. Maybe the wire to the sending unit?
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Coolant temperature gauge bounce up and down.
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I got my car back finally and on the way down the belt way i started sliding around a big turn and I get home to see my temp gauge way up and all the coolant went all over my engine .
I took it to a shop the did pressure test and that was fine, But the also found jell around the thermostat. The other thing they said is that it had air bubbles in it too. They said exhaust bubbles. But when they ran it it didn't heat up any more. They said its the early stages of blown head gasket ..
I took it to the dealer right away and they are telling me they cant find any thing wrong. Both places asked if i put stop leak in there but I never added anything to my car. So I am lost and don't know what to do.
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Lately my engine/coolant temp gauge has been screwing with me. It is either been almost at 190* or dead 90-100*
It seems to go up when in the lower RPM range (idle-2000) and goes down when in the higher range (4000-redline I suppose).
I stayed at or above 4000rpm on my way home from work for 3-4 minutes and it was almost at 90*...went to 5000 for 2 minutes, same thing. I shifted to 6th and it rushes to 190*.
So is my sensor bad or what?
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Got a '98 rodeo 3.2 with 160k. A couple weeks ago when stopping at red lights I noticed the temp gauge creeping up to the hot when stopped. This happened about 4 years ago and I was just low on coolant. I kind of figured that was the problem this time and added coolant. Then I started noticing coolant on the ground dripping from the skid plate a little toward the passenger side. The vehicle is parked on the street in front of my house so the vehicle may lean slightly to the passenger side. This rodeo is only driven during the week and then sits for 2-3 days on the weekend.
Over the last couple weeks I have noticed that it doesn't really leak during the week when it's being driven daily and if it does, it's just a drop or two. Now when it sits for 2-3 days there is a pizza sized leak under the vehicle probably about 18 inches wide. Since the overflow wouldn't hold coolant, I figured that it was cracked or had a leak. I removed the reservoir and didn't find a leak. I seen no evidence of a leak anywhere else, however since it's dripping from the skid plate, I assume that it's leaking on the front side of the engine. What to check. Seems strange that it doesn't really leak when running or hot, only when sitting for a few day.
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I have a 2002 supercrew 5.4 triton. My coolant temp gauge is acting up. When it starts up its obviously in the cold range but when the truck begins to get up to temp, the gauge only goes up 1/4 full. What it can be?
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Have a 2000 subaru outback 2.5l, automatic, with about 245k, I replaced the thermostat,water pump, the radiator and the car is still overheating. both fans are working. no leaking coolant. Maybe this is related- over heats mostly when driving on the highway. But if a shift the gear to neutral and coast for a minute the shift back to drive the temperature gauge goes down. Whats wrong, running out money fixing the car, but love it driving it in the snow.
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So a couple weeks back I'm on expressway home and I look down and and temp gauge is pegged out overheating I immediately pulled off and shut it down and towed to a buddy of mine's shop he flushed it filled it up w antifreeze and checked for leaks and couldn't find one. I drove it for about a week and got out to for a quick stop , Ex parked on a slight decline and came out to prolly half gallon of coolant on the ground..I limped it to my buddies shop as it was not running hot .. he has checked it out but can't find any leaks, even after having it run 30 or so minutes..
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My '97 F250 5.4L is pumping coolant on to the top of the motor which is burning off causing it to smoke like it's overheated but the temp gauge is operating in normal range. I'm losing coolant but can't see where. It's not going to the ground. It just pools up on the top of the motor. I've already replaced the water pump in the last 2 weeks because of the same issue. It stopped for a few days but now it's back again. Bad water pump from O'Reily's or is there some other issue here? I've checked while the motor's running and can't see where the coolant is coming from and there's no coolant coming out of the bleed hole in the top of the new water pump. I need this truck up and running.
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For a while now, my coolant temp gauge in the instrument cluster would bounce according to the bumps on the road, only when engine is fully warmed up. So I disconnected the ECT sensor to see if there's anything unusual. Nothing suspicious found, so I plugged it back in. Now my temp gauge is at "Cold" all the time. OBD reader shows normal coolant temp rise.
I shorted the ECT connector to simulate a hot condition--gauge still shows Cold. Checked the yellow/red wire against ground--5 ohm. Disconnected battery for 30 minutes--no change.
Now, it looks like I'll have to pull the instrument cluster, which is not something I want to do since I don't really have a place to work on the car, but I take this drastic measure.
Mine is a 2001, with the analog cluster.
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Bought this truck, and the engine coolant temp gauge does not work, so I replaced the sender, still don't work.
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Okay so recently I was driving my 2000 Jetta and the coolant temp light came flashing on, when I went to check the coolant I was surprised to discover that it was like a mud brown color, almost looks like peanut butter. From everything I have read this can be from a few things, either rust build up that is gunking everything up and oil getting into the coolant somehow. I'm pretty sure its rust build up but I was wondering what everyone thinks about this, I was also not using G12 coolant which I'm told now is the premier brand for VW's.
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The outside temp gauge on my '05 Treg has never read correctly. It reads approx. +5 degrees F. throughout the range. Can this be recalibrated, by Vag-Com or otherwise, or is it a faulty sensor, needing the dealer's attention? Where is the sensor, anyhow?
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2002 ford sport trac.I have been having an ongoing issue that started with the engine cranking but would not turn over until an hour passed. After replacing multiple parts (cam shaft sensor, crankshaft sensor, ignition pack) I am now down to poor fuel economy as the last of the issues (roughly 12 in the city and 15 highway). I was told the issue may be the engine coolant temperature sensor going bad so I decided to replace it. I found this was very difficult due to it being a plug and locking pin design and in a very tight spot in the engine.
I tried to purchase a replacement and the parts store kept trying to insist on selling me a part with threading. I finally found someone that figured out the issue and found the part for the 2001 sport trac had the same plug style with clip that did fit but was shaped a little different on the sensor end which I assume was due to being aftermarket. I noticed that there were two plugs side by side and the one easiest to access was on the left and I was told the one on the right was the sensor that gave the temperature reading to the gauge.
After installing the engine coolant temperature sensor I found the temperature gauge on the dash now will not respond and is sitting below the cold end of the gauge completely off. Is it possible this is because the part was for a 2001? Is the sensor on the left (passenger side) the engine coolant sensor?I would hate to put the old sensor back in just to test if that's the issue due how difficult it was to put that locking pin back on. What to check that could resolve the gauge issue before pulling this sensor back out?
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I have a 2009 Avalon XLS with about 60,000 miles. While my wife was driving home from work today the following happened:
AC compressor off (blows hot air), temp gauge not operating, abs light on, brake light on, avg. mileage and distance to empty display displays blanks, shift indicator on dash not lighting.
Rest of dash works fine, audio works, lights work, car runs fine.
I tried finding a common fuse, but really don't know what to look for.
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At idle temperature is above middle. Upper radiator hose, which is connected to the thermostat is hot. Lower radiator hose that feeds back to the engine is cold. Radiator fan will not stop running if the temp guage is at middle to needle above middle. When running the temperature reading is normal at 30 mi/hr (middle to just below middle). Temperature will also go down if at high rpm idle, about 2,500 RPM.
New thermostat replaced last week. Water pump replaced less than one year ago. Upper radiator and lower radiator hoses are pressurized when running and off.
I suspect the thermostat was installed incorrectly. Pressurized hoses mean excess air in the cooling circuit/system. If so, does it mean I have to bleed out the air? How do you bleed out the air on a cooling circuit of a car, I thought the reservoir tank already does that naturally? I think the normal range for the temp guage should be 1/3 of the whole range of the guage, right?
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I have a 2005 Toyota Matrix with 250k on it. It has run like a champ so far, with the only problem being an ECM recall last year. I have noticed a few problems recently; the heat blows cold air for quite awhile, and the temperature gauge, while not reading hot, sort of fluctuates between normal and a little warm. When the ECM was being replaced, the dealer said the serpentine belt was overdue for replacement, and I know he's probably right about that. He also said the water pump needed replacing, although I have never seen any signs of leaking. This car has been a champ, and I'd like to try and get another 100k out of it if possible. I'm pretty handy around a car, I've replaced an alternator and radiator before, and I'm working on a limited budget, so if any of this is doable by me, I'm up for it.
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