Bmw - X3 :: Electric Radiator Fans Run On High After About 10 - 15 Minutes Of Cold Start Drive
Dec 2, 2013
After about 10-15 minutes, following a cold start, this 2007 BMW X3 3.0 six does the following:
1) automatic cabin fan behaves erratically, jumping back and forth between low and high speeds;
2) cabin air does not heat;
3) electric radiator fans run on high;
4) coolant temp rises to normal, but then will suddenly jump up to full hot.
At this point, driver of course pulls over and shuts off engine. The amazing part is this: the engine can be re-started IMMEDIATELY and all of the above problems vanish instantly. Radiator fans shut off, temp returns to normal, cabin fan works normally, and cabin heat comes on. I'm thinking sticking thermostat, but why does shutting off the car momentarily fix it? Change of water pressure when coolant pump stops running?
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The two Radiator fans are always running even at start up on a cold day. I have not had time to investigate as yet but I am assuming it is the temperature sensor located near the thermostat or a relay. No CEL on. What it likely is and how to approach the trouble shooting?
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Both my radiator fans run all the time, even if the engine is cold. Soon as I fire it up, even if it's 0 degrees, they are running. To be clear, as expected, the fans do not run if the car is off.
Based on these symptoms, what components could be the culprit?
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Lately, I've noticed that when I start the car in the morning, the radiator fans come on at full blast, even though it's around 20 degrees F (not all the time, but most days). My temperature gauges all show (what I assume are) correct temps as it starts out cold, water first goes to 200 and stops, then oil slowly climbs and stops at 200 I believe.
They don't climb any faster or slower that I've seen, and usually by the time I get to work (around 20 minutes), the oil temp has probably climbed about 3/4 of the way to normal while the water is steady at 200.
Is this normal? I don't recall this happening, as I would've noticed as the fans are quite loud at full blast. I haven't had a chance to run a diagnostic scan yet, but the car hasn't warned me of anything either.
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I have a 98 Toyota Camry, when I drive it for about 30 minutes both radiator hoses expand and seems like they want to burst.I removed the thermostat but still acting the same. Seems like the car is building a lot of pressure from the engine.. What could this be? Already replaced the water pump and have a new. radiator... The car does not overheat with or without the thermostat.
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I've read a lot on hear but can't seem to find what I need. I just replaced one of the battery cells. Now when I drive for about 20 min the engine idles high and the energy read out stops charging the hybrid battery. The AC recirculation turns off on its own. I have a few codes. the O2 sensor and cat code. The p3006. I had one cell that i didn't replace that was reading 6.9 volts. I thought that it would charge back up on its own. We went of vacation for 2 weeks and the car didn't get driven. I found out that's not good for an older prius.
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Fourth attempted fix failed. 2 times with "regular" mechanics, once with Kia dealership. My 2006 Kia Optima will drive fine for about 20-30 minutes (last time 18 miles) I'll hit a bump, stop, or turn a corner and then it acts up (engine light comes and goes). I have to drive with my foot on the gas at stops it wont come down from 40mph unless I break, It once wouldn't go past 40 though and I thought it was going to stall out on me. Once shut off, It has trouble starting, but will start.
Shut it off, it runs again fine for the next 10min or more. I have had the crank-shaft sensor replaced three times, (last by dealer for double the cost) New battery just put in a couple of months ago, spark plugs, the throttle body was cleaned, and threw in some high octane gas cleaner in the tank as well.Every time I take it in, they say "it's not acting up right now so we don't know" ....The only other issues that don't seem too important right now are back sway bar and flex pipe.
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2012 F150 FX4 ecoboost electric fans not kicking on. I've checked all the fuses and relays and the are good.
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OK Wife has been coming home and the car smells like coolant. The tiny hose from the rad cap to the reservoir isn't pressurized and popping the res cap does not release pressure. Do they are supposed to pressurized?
The coolant level is in the exact middle of high and low just after a 25 minute highway drive. I cant see any puddles or leaks anywhere on the tray; but I have pulled the tray anyway to see if leaks show up on my floor. Temp gauge never wavers at all from what she tells me.
This is a bit perplexing. Maybe a bad rad cap?
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I start the car, with AC on, radiator fan starts and within a few minutes the engine radiator fan stops working, idles rough since the AC compressor pump keeps cycling on and off and engine starts to overheat. After shutting down I check the engine cooling fan fuse and it sure enough is blown.
How do I determine as to where the short is? Is the short in the wiring somewhere or can the actual motor short out?
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I just bought a used 2010 Camry 2.5 (31K miles) couples of weeks before. After weeks driving, I found some problems about the car.
1. when i start it in the morning (cold start), there is a electric currant noise coming from the steering part, when i press the break pedal, the noise disappear, but then it comes back when I release the brake pedal. It just last like half minute, the noise total gone when I drive or the car warms up. I cannot figure it out.
2. the steering is too..... light. I do not know whether the camry is this style or I just doubt whether the tie rod ends have problem. the steering always move with the tyres even just a little disperfection of the road.
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As it was such a matter of time, my fans on my 24v gave up during winter, no big deal as it was a pretty cold winter but now that spring is around the corner, I gotta fix this issue. To they change for the same OEM unit that will die in the next 30k miles.
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First summer with 2014 Passat. We have been getting close to 90 degree days this early in Summer and I have noticed a sensation that I have not had with almost the first year of ownership.
The last couple of days in stop and go traffic I have noticed that when the Radiator Fans edge up to the fastest cooling speed I can feel a vibration in the steering wheel. It is a strong vibration feeling. I had a friend turn off the car while the fans were going full speed. The largest fan on the drivers side seems to wobble as it cost down from the high speed. I am wondering if these fans can be balanced with counter weights.
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I have a 1987 Chevrolet Celebrity that on the exterior is in pretty rough shape but seems to run great overall. The car is only driven to and from work which is only about 4 miles each direction. So it is drive 8-10 miles a day 5 days a week. It starts great and doesn't seem to have any problems except for the flickering oil light. After about 10 minutes of driving the oil light will start to flicker whenever the car is stopped (i.e., a stop light or drive-through) As soon as I start to drive again it will stop flickering. This problem seems exacerbated on especially not days and it happens earlier than normal. It does have an oil leak so I check the oil often but this happens even when the oil is at a normal level. I don't really want to take the car in because it isn't worth anything and I don't really want to invest money into it. What might cause a flickering oil light?
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What is the secondary electric fan behind the radiator for? I never see mine running.
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I can usually find what Im looking for with a quick search but I have had no luck with this issue.
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So this seems to be a common code that is thrown when you near 100k miles, I'm at 77k .. This thread seems to be the most organized [URL] ....
"Long story short, there are 5 main reasons this problem can pop up, listed in order of likelihood, least to greatest:
1) Coolant sensor
2) Thermostat
3) Bad fans
4) Coolant mixture
5) Water pump "
My issue is that the only ones I'm (probably) able to rule out is coolant mixture and bad fans. My radiator fans do turn on from time to time, so I thought I'd ruled that out (unless it would throw a code for not turning on at appropriate times?)
I heard of a test to turn on your AC and see if they turn on, but my AC hasn't blown cold air like ever, so I don't know if that affects the test (probably not?)
A couple years ago I had a shop replace the original thermostat with the new one, or was it the coolant sensor, or both (ugh, I don't remember!) That leaves thermostat, coolant sensor, and water pump.
I guess my main question is is there anyway to find out which it is between these 3, without spending so time, money, parts etc? It doesn't seem the coolant sensor is easily accessible for one.
My car has been really slow recently but I also need to change the spark plugs, I'm doing that this week. I cleared the CEL/P2181 code and it returned a few weeks later,
I'm starting to change my mind about this car being easy to maintain/reliable, I'm always on time with maintenance and with only 77k miles on a 2004 car.
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I bought my car last May and never noticed the radiator fans running, but over the past couple of months they've been coming on (or at least running at a higher speed) pretty much every time I take it for a longer drive. They appear to come on only when I'm idling and turn off when I start moving again. The temperature gauge is steady at just below halfway. I'm certain this didn't happen previously, or if it did the fans were at a low enough speed that I didn't hear them. In my inexperience I would have thought they'd be less likely to run in the winter, and we've been having continuously cold weather (<30 C).
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I don't understand what is going on I noticed smoke coming from my fans radiator fans and I'm pretty sure that it was motor being fried I've gone to the junkyard and bought a used assembly hooked it up and still nothing could be a possibility that when the motor fried it fried the control module for the fans
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I m having trouble figuring out why the radiator fans wont turn on, Even when the ac is turned on it still doesn't turn on, I changed the coolant temp senser. still nothing, i also ran a whire from the battery to the fan and they both turned on. I also stitched around relays and checked fused still nothing. 2000 pontiac grand am 2.4L engine 4dr auto trans.
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Radiator fans making tons of noise on my newly purchased gli jetta...
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