I got a mk4 where the temp gauge starts to climb to 3/4 instead of halfway when I'm idling for a while.
1. fans don't come on
2. if I turn on ac, fan come on and temp stays at 1/2
I tested low and high speed on fans. both operational. Is it the fan control module, temp sensor green top, or radiator s/w?
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).
I am trying to troubleshoot an overheating problem so that I may fix it myself. Not sure if it's thermostat, sensor, or a blockage.
'04 Jetta tdi with about 200k miles. Temp sticks at 190 usually for about ten minutes then starts to climb, varying between the 207-225F mark. Hasn't gone any higher, even in high 90sF ambient temps after 30mins driving. Holds fluid fine, pink G12 mix, and no bubbles or milky appearance to oil dipstick. Recently installed new AC compressor, txv and dryer so I imagine I can tackle thermostat or sensor if need be. Where to start?
I have a 2001 Nissan Frontier Crew Cab XE with a V6 (without the supercharger). I bought it on Halloween night with only 42,000 miles. It now has 112,000 miles on it. I moved from Georgia to Kentucky and heard that I needed to have the cooling system flushed/filled to prevent it from freezing in the winter time. I then noticed that it would periodically "overheat." The temperature gauge would climb up to the line just below the "H" and then I would turn on the heater.
I read online about a "bleeder valve" on top of the intake manifold. I loosened it, squeezed the radiator hoses to get all of the air out and then tightened the bleeder valve. I then let it run until the thermostat opened, revved it up to 3,000 to let all of the coolant flow. Now, at various time with no specific reason, it will run fine and then just "decide" to overheat.
I can drive it on the interstate for fifteen minutes, park it in front of my house and then have to "tack it up to 3,000" just to get it cool. I've changed the thermostat and had the water pump tested. Neither of them are faulty. My mechanic vacuumed out all of the air from the system with a special tool the dealer recommends using and it still does the same thing. What's going on with this vehicle?
I have a 2002 Volkswagen Golf 2.0, I was driving and the temperature gauge starting raising pretty quickly. I stopped, checked the coolant and oil, both were at normal levels. The car cooled down pretty quickly, and I drove a little and it raised again. The heat is coming out cold despite the hot temperature. Overheating, normal coolant levels, no heat.
View 8 RepliesAt idle, on hot days (90+) after about a minute, the A/C cuts out and the temp gauge begins to rise. Gets about 3/4 of the way to the red zone, but never reaches it. I changed radiator cap, but still does it. Fluid level is fine; no coolant leaks that I can see. Called a mechanic and asked about a radiator flush. He said he'd do one, but it probably wouldn't work and I should just bring it in for a diagnostic.
View 7 RepliesGot my 1979 Ford Bronco (351M engine) from my father. He had it in Colorado, mostly in a garage. Had 82,000 miles when I got it and has 67,000 miles now. Runs fine when the outside temperature is less than 80F. Above 80F, the will get hotter and hotter and the temp. gauge will climb. When the temp. gauge is 2/3 of the wat between Cool and Hot it will start to buck and cut out. Eventually the engine will stop. Then I have to wait for it to cool down to repeat the cycle. I have replaced all hoses, radiator, thermostat (3 times), radiator cap, carb. I have installed SS louvers in the hood. Heck, I have even "burbed" it (see Internet).
View 14 RepliesI have a 2003 vr6 with about 60,000 miles on it and it overheats. I can drive between 35-40 mph and make short trips no problem but when going any faster or accelerate faster than an old lady in a buick, the temp gauge slowly rises(or fast if i accelerate fast.) Until the "stop, check coolant" warning comes on(which i don't let get to that point.) it blows heat all the time, all the hoses get hot, I am no professional by any means but i have dealt with many different overheating issues with other vehicles but I am kind of stumped at what to try first so i don't end up replacing something that doesn't need to be because i do not have the extra $ to do so. The problem started when someone put dirt in my coolant, I flushed out the system twice, the second was just to see if anything else had loosened up that I may have missed the first time..
View 2 RepliesI have a 2004 Grand Prix and it is displaying the symptoms of overheating but the temp gauge is not going above normal operating temp. I replaced the thermostat twice, and after driving for about 10-20 mins coolant comes out of the overflow. I'm at a loss, I'm thinking temp sensor(?) But I don't want to keep throwing unnecessary money into it. The fans work fine, the heater blows as it should.
View 8 RepliesSo to start off, its 10 degrees here with a -7 degree windchill. With that in mind, I was driving home just now from dropping off a friend, and noticed my engine temp was slightly about 190. Didn't think much of it, but within a mile down the road the temp was crossing the final line before the red 260 degree line. I pulled over and let it get down to 190 (luckily didn't take long) but in the next 3 miles home it rose again, then fell, and then rose again as I drove through my neighborhood. I'm thinking maybe the thermostat is going bad...? There's no way it went from normal operating temp to almost overheating as cold as it is....
View 18 RepliesI am having a overheating issue with my 1.8t AWP gti, it goes as fallows, start the car, engine warms up go for a drive (short 5-8 mi), park the car and temp gauge starts to rise, (turns off car)... I began to check some things with the system, I checked both rad hoses bottom is hot top is a bit hotter and fans work when ac is on; here is where it gets interesting i took off the coolant return hose on the reservoir (cold start) and nothing was flowing ...water pump?... So i turned the heat on and air full blast and all of a sudden coolant starts to flow.
It also seems like air is being spat out as well. Soon after the flow beginning my coolant in the reservoir starts to fluctuate (rising and dropping) with air bubbles and beginnings to over flow so i shut the car off. Now I know what the possible issues are its either the water pump, air in the system or bad autozone thermostat. Here is some history of the car TB was replaced at 70,000 by Previous owner, i bought the car had the belt inspected and was told it was good, about 2 months ago i had a coolant leak and had it misdiagnosed as a thermostat housing leak; it turns out it was a coolant bypass hose that was leaking so i ended up fixing it. I lost a lot of coolant but topped it off with g12+. My mechanic doesn't think its the water pump and recommended changing the thermostat for an VW one another mechanic recommended to bleed air of the system.
My temperature has been randomly dropping, them back to middle, and recently my engine was overheating because I'm guessing the fans didn't turn on, because I'm also guessing, the engine didn't know it was overheating?
Anywho, during my replacement, I made sure to get rid of the pressure, and the car was cold. I tightened the cap again, but when I took the sensor out, all the coolant spewed out.
Now if I understand this correctly, do I have a leak? I figured the leak I had was coming from the temp sensor as it is.
Here's some pictures for those who'd like to see ....
My 99 2.0 jetta tends to flash the temperature light on cold starts and when the cars running for a while and im not moving (traffic) the light flashes and starts to overheat. Whats the problem? The previous owner had changed the radiator begire i bought it but can it. I need a new radiator fan or is it my thermostat?
View 6 RepliesI have a 2.0 auto city golf. The wife claims when she's sitting at a light the temp gauge drops to nothing, it sounds like it stalled and starts to roll back and then comes back to life when she pumps the gas. Every time I drive it it's fine.
View 2 RepliesI have a 2005 mk4 gli and the other morning I went out to start my car for work and all I got was crank no start. I then realized my fuel pump wasn't priming when I opened the driver door. After work I came back and checked the fuel pump fuse and swapped the relay with another I had, still nothing. A buddy of mine came to me and decided to check the connector at the fuel pump for power, using a power probe I believe he hit all or the majority of the wires with 12v of negative and/or positive power. He then unplugged the connector and plugged it back in and the car fired right up. But I noticed that my fuel gauge, engine temp gauge, and outside air temp readout were all not functioning.
View 1 Replies1.8 jetta... Seems to do this when at idle only on occasions it goes above 190F. Waterpump was changed about 5k ago so I'm sure its not that. Thermostat still needs to be changed. It seems like if I turn the heat on it stays at 190F.
View 2 RepliesI have a 04 jetta 1.8t that just randomly started having some overheating issues. I just got the car two days ago, and the first day I had it I replaces the coolant temp sensor due to a check engine light. Drove 50 miles and the light shut off. Just yesterday I was sitting in traffic and noticed the temp going above 190 (which it hadn't done in the 200 miles id driven it so far). I brought it home and once I was out of traffic and moving along the temp went right back down to 190. The only time it tries to overheat is when its sitting still or at idle (after reaching operating temp). which is weird.
I was parked in my driveway and let it sit at idle for a few minutes until the temp started significantly rising. i revved it to 2000 rpm (thinking it would rise even more), but to my surprise it instantly went down to 190 again. my big fan isnt running either, but my friend said he doesn't run fans in his and that it shouldn't overheat because of the fan. also, my top hose is warm to the touch, but the bottom isn't. I know your thinking thermostat, but if that was the problem it would :
1: always overheat, or
2: never overheat.
The temp wouldn't fluctuate the way it is.
2.5 months ago I had a coolant flush in my 2007 explorer Eddie Bauer. The last 3 days last week the temp gauge went from the middle where it usually sits, to maxed out in the red. Stays there for about 45 secs and then drops back down.
Is it coincidence that I had a flush and maybe they didn't fill it all the way back up or is it somthing else ?
One other thing- even when it sits in the middle of the gauge I can sometimes hear the engine sucking in air like a vacuum so I guess at certain times its running hot but just doesn't raise the gauge just yet.
My 01 passat is telling me to check my coolant when it's working fine and its not overheating I think it might just be a sensor because my check engine light is on and it's reading thermostat.
View 6 RepliesYesterday when I started my car the coolant temp was near 100 (from a previous drive several hours prior) and it was over 80 degrees outside, yet the car went into high idle mode as though it was cold outside. It does this sometimes, but not always, and if I dont let it idle down and just start driving, it'll stay in high idle for a long time (i.e. even after a couple miles of driving, if I put it in neutral it'll rev back up to high idle).
Air temp sensor and coolant temp sensor are working properly, but it doesn't seem like a normal thing to do, but its done it for years. Anything else that might cause it, or any way to stop it?
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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