Passat (B5) :: Radiator Fan Not Turning On When Hot Outside
May 20, 2011
1.8t 5.5 radiator fan does not kick on when its hot? my clutch fan works obviously but the one next to it thats controlled by the elec. motor only turns on for about 3-5 seconds on warmup and then does not come on again! Its about 70 degrees out and i made sure to get the motor hot and still nothing at a stop! does it have to be EXTREMELY hot to kick it on?
View 4 Replies
Advertisement
2006 Hyundai Sonata Radiator fan is not turning on at temp or with AC. Fan works with 12 volts and a good ground at the connector. The car side of the connector has 14.5 volts on the positive side and 12.5 volts on the negative side with car running and AC on. Why is there 12.5 volts on the negative side and more importantly. how to resolve?
View 5 Replies
My radiator fan is not turning on in my 2002 Jeep Liberty. The belts look fine and it turns by hand. My radiator overheated last summer but since has been fixed now my fan doesn't work, but hasn't overheated. No parts of the the radiator or fan were removed. We fixed a part in the water pump this past sunday and when we had the engine running for about 15 minutes, the fan did not turn on or even act like it was going to try. What the issue could be?
View 9 Replies
I recently had my radiator replaced on my 1992 accord lx. Now I have notice that my temp. gage starts to climb up. All of the hoses are not leaking. I was wondering could this be a relay problem or a switch or motor fan. The a/c fan does come on when it is engaged.
View 6 Replies
What is the secondary electric fan behind the radiator for? I never see mine running.
View 8 Replies
So i cant figure out how to remove the radiator side of the upper radiator hose. I pulled out the pin but i cant remove the hose.
Do I just pull it straight out? Or do I twist and pull? I dont want to break the connection.
View 2 Replies
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.
View 3 Replies
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?
View 1 Replies
So my mechanical fan came apart and punctured several holes in my radiator and my car leaked water and coolant everywhere. So it happened right after startup and I drove it until the coolant light came on, the car wasn't even to full temp.
I started the car a few times between the time I parked it after the fact and when it was finally in my garage. I had to move it into a parking lot after I parked it because it would have to sit over night. Then it was started to put it on a Tow Dolly (AAA has stupid rules, but that's another story) and when I had to pull it off. I also moved it closer to my garage door prior to actually pulling it apart.
Then after I finished changing out the radiator and filling back up with tap water and G12, the thing won't start. It turns over and is getting fuel, but just isn't firing. I didn't disconnect anything other than the hoses for the radiator, the trans coolant lines on the radiator and the coolant temp sensor. So I don't know why this would cause the car not to start.
My car:
1999 VW Passat GLS Variant
1.8T Tiptronic
Giac X Chip
View 5 Replies
My radiator fan didn't turn off tonight. Used to Audi's I didn't think much of it as they often run after car is off. Battery died later tonight. The fan will not turn off.
I tried pulling the fuses listed for the fan and it didn't turn off after I got home and would not drive the car anymore. Car sat for 3 hours when the battery died, so it was not a heat issue.I had to disconnect the battery to stop the fan and enable me to start the car again. How do I stop the fan with a fuse/relay so I can use the car until I get to the dealer? 2008 6MT
View 11 Replies
I have 98 passat V6 and the lover radiator hose is leaking at the connector between radiator and the hose. Do I need to change the whole hose or is there maybe an o-ring that should be changed? How hard is to remove the hose? Do I have to go to the dealer?
View 2 Replies
92 Toyota Pickup (22RE auto). New block, rebuilt head, new water pump at 300k about a year ago. Sounds strange I know but that's what seems to have happened. Ive never been able to get heat from the truck since Ive owned it so Ive been trying to fix that. I flushed the coolant out and replaced the tstat. I brought the car to a mechanic and he put a pressure tester on the cooling system and he said it wasn't holding any pressure. He also pulled off the heater core inlet hose with the truck running and no coolant was coming out. He thought there was a blockage somewhere but how to fix it. I figured I might as well try replacing the old radiator cap with a new one so I did. Once I did this, the first time the truck went out, it overheated and the radiator crimped upper seam (on the plastic) burst outward.So all in all...something is wrong.
View 2 Replies
I picked up a used 99 Passat with 79000 miles. I just changed the oil and found the pan pretty well sludged up - typical from what I read on the forum. I noticed the coolant looked pretty diluted - so I drained and filled with 50/50 mix. After starting I felt for the upper and lower hoses heating up and the lower one never did. I guess I should have tested this out before draining and refilling - also typical. Question is - is this a thermostat issue? My Haynes manual says if the top hose becomes hot the thermostat is operational. Heater has plenty of heat, temp gauge stays pegged at 190 degrees top dead center of the gauge.
View 5 Replies
Had a small leak on show up in my transmission cooler line at the radiator connection. After replacing the o-ring, which was pinched, I had lost some fluid up to about 3-4 oz. I had stopped by the local VW dealer and picked up a liter of ATF fluid and noticed the colors of the fluid differed from what drained out from the cooler line. Fluid that drained out was a cloudy darker green/grey and the new ATF fluid had a clear yellowish tint. Is this vehicle equipped with a closed loop cooling system or does it use the actual ATF fluid as the cooling medium?
View 2 Replies
I have an 05, 2.0 TDI which recently got a a PO118 fault. My mechanic replaced the green top sensor with one with a blue top (having been told that the green top sensors have been updated to blue). I am still getting an occasional PO118 fault but now the auxiliary (a/c) fan or the radiator starts running within a few seconds of start up, A/C on or not. SO, bad sensor, wrong sensor or something else entirely?
View 2 Replies
I go to turn the heat on in my car for the defrosters the other day and the heat wasn't turning on. No the slightest bit warm, would this be a thermostat problem or a heater core?
View 1 Replies
Car just wont start we thought it was the starter, we changed it and still not turning over. We ruled out the battery, and starter. Anything else we should be looking for??
View 13 Replies
My grandmothers car was running when she parked it. She went to start it the next morning and it was turning over, would not start. I'm towing it today to see what's up with it. Any common issues?
View 2 Replies
Lately, I've begun to hear squeaking sounds when I turn my steering wheel to the right or left on my '99 Passat. What should I look at first, steering fluid?
View 4 Replies
The light that comes on when you're turning, it's located behind the parking lights and lights up to the side, has went out on the drivers side. I am needing to know how to change it out and if you know what bulb it takes.
View 7 Replies
Just yesterday, my 2001.5 Passat GLX had trouble starting. I got a lot of rapid clicking and after a few tries, it finally turned over. Then I drove it around a bit and it started fine after a quick lunch. A few hours later, it hesitated again, so i thought maybe I didn't charge it up enough, so I took a trip down to my local Kragen and thought I'd get the battery tested just in case.
They did a test of the battery with some handheld device and said it came back fine. The guy did say that if I could take the battery out and bring it back, they could test it in a different machine, though, but otherwise the battery was charging fine and was holding the charge fine.
This morning I started up the car to see if it would start. Started fine. Then I did it again and it started fine again. OK, must have just drained somehow and now it's got some juice again. Fast forward to this afternoon and my wife was going to the grocery store and she says "The car is dead!". Yup, dead. Just rapid clicking again, but not turning over.
After checking out some threads in here it looks like it could be the battery. And it is about 5 years old according to the date sticker on it (Duralast, btw). So to test it as best I could, I charged it up with a battery charger, then took a reading with my multimeter. With the car off, I could literally see the voltage dropping in the readings. It started around 13v, but got progressively lower and lower as if it was a timer counting down seconds. I then disconnected the Terminals and took more readings. This time the voltage maintained it's reading and was static.
ok, so now maybe something is draining the battery (and fast!). One thing I noticed when I re-connected the Terminals is a sort of whining sound coming from the area of the coolant reservoir. When I put my ear closer, I could hear liquid moving around there. Is that normal that it would be on when the car if off? Could that be my culprit?
View 4 Replies