Grand Prix :: 2000 - Cooling Fans And AC Compressor Not Working
Cooling Fans and a/c compressor not working-2000 Grand Prix. They both work when I jumper them. Replaced coolant temperature sensor, checked fuses and relays -all good. Not sure what to troubleshoot from here.
View 4 RepliesAccent LC (2000-05) :: 2004 - Fast Idle And Cooling Fans Won't Come On
Few issues I am having with my 2004 Hyundai Accent GL Automatic 1.6 with 150k.
The first issue is the idle speed. The car idles between 1500 and 1800 RPM no matter if you just start it or if you drive it 200 miles. I have replaced the IAC valve, and that didn't change anything. I cant seem to find any vacuum leaks.
The second issue I am having is that the engine cooling fans do not come on when it gets up to temp.
I replaced the coolant temp sensor, and that didn't seem to work. I also tried swapping the relays, but nothing happened so I just pulled the relay for the cooling fan and ran a jumper wire so the fans run all the time while the car is running. It keeps the car cool, and I can drive it, but I want it to work right.
The third issue is that the car sometimes bogs out when you are pulling out or in traffic with the AC on. It almost sputters and hesitates when you try to go. It runs great at highway speeds. Could these issues all be tied together maybe the same problem?
Dodge - Caravan - Relay - Fans - Radiators :: 2000 - Cooling Fan Won't Turn On?
I have a 2000 Dodge Grand Caravan that has 195,000 miles. My radiator fan won't turn on and I'm stumped! The issue presented itself with a check engine light and the radiator cooling fan not turning on. The trouble code indicated the cooling fan relay was faulty. In all cases below, I tested the radiator fan by turning on the air conditioning (thus forcing the cooling fans to run) and also for it to come up to a high temperature coming close to the danger zone.
1. Fuse - first tested the fuse and it was OK. Had to start with simple things first.
2. Cooling fan relay - I replaced the relay which has a reputation for failing on the Dodge. Still the fan did not kick in.
3. Cooling fans - tested the cooling fans and the motor was seized. Replaced the cooling fans and tested them by jumping them. The cooling fans still do not turn on. There is no voltage leaving the cooling fan relay and coming into the cooling fan harness.
4. Wiring - tested the wiring between the relay and the fans. They checked out OK (good continuity and resistance check). There is no voltage leaving the cooling fan relay. Now it's getting more complicated... I unplugged the wiring harness from the ECM and tested the wiring between the ECM and the cooling fan relay. A-OK.
5. ECM - it is unclear how to check the ECM for functionality of the cooling fan.
There are 3 wires (supply, ground, and switch wire?) The supply voltage and ground is good, but I don't know what voltage the switch wire should be. I've read that it is pulse width modulated so I can't measure this with a simple voltmeter. I've also read that the switch wire goes to ground thus triggering the relay. I don't know which is correct. Several mechanics I talked to were skeptical that the issue is with the ECM, they knew of very few instances of this being the culprit. I even replaced the new cooling fan relay with another new cooling fan relay on the off chance that the replacement was faulty. Did I miss something in my logic and diagnostics? I've resorted to wiring a switch directly to the cooling fans and toggling them on and off.
Passat (B6) :: One Of Cooling Fans Not Shutting Off
One of my cooling fans will not shut off, I think it is the aux fan. Anyway it will fun till batt is dead either hot or cold .
View 2 RepliesLeSabre :: 1997 - Cooling Fans Won't Come On
My 97 lesabre cooling fans won't come on. the car gets pretty hot when driving around town. I saw on another form that they should come on when the Air Conditioning is on but mine does not. I got the fan to come on when connecting it directly to the battery so i know the fan is good. I replaced the high speed relay with the horn relay and still nothing.
Im not opposed to putting a switch in the cabin but im not sure the best way to go about doing that.
Touareg :: 2004 V6 - Cooling Fans Always On
I own a 2004 V6 Touareg as I have been going to the dealership for the last three months now and they cant solve the problem.
Once I start my car in the morning, immediately both cooling fans start running and they wont stop until I shut down the car, it takes them about 10 min to shut down.
Bonneville :: Cooling Fans Not Coming On
In the process of resurrecting my 93 SSEI after running at idle for awhile the engine was pretty hot. I noticed the fans never came on. I unplugged the temp sensor and both came on. So would the problem be the temp sensor, thermostat, or relay. I am not sure what the actual engine temp was because my Cluster only works when it wants to, usually when its warmed up and going down the highway or when I mat the throttle.
View 10 RepliesPrius (2004-09) :: Cooling Fans Won't Come On
I have 05 prius and the cooling fans wont kick on as well as the ac wont work. I have had the cooling fan motors checked they are good. I have changed the 2 cooling fans relays and the cooling fans still wont kick on.
When I bought the car the check engine light was on so I had it scanned and it threw the code P1121 coolant valve control. so I went and bought this part since I heard it was a common problem but haven't got it put on yet. Could this cause the cooling fans to not kick on and ac not to work or is it something else?
Passat (B6) :: 2006 - Cooling Fans Won't Shut Off
I have an 06 Passat 2.0T, and last night whenever I shut off the car, the cooling fan is constantly running. I had to unplug the battery so it wouldn't drain it, and about 5 hours later, I hooked it up and it stays off. I also noticed when turning on the air conditioning, the smaller fan doesnt kick on. I'm lost and don't know where to start. Could it be a thermal switch or the whole fan assembly
View 19 RepliesGolf IV R32 :: Cooling Fans Not Turning On And A/C Not Cold
The last few times I drove my car, I noticed the A/C didn't feel very cold. I checked today, and noticed that neither cooling fan comes on with the A/C on. My understanding is that both fans should be in LOW mode with the A/C on. Also, after idling for a while and even after doing some spirited driving and pulling over, the fans never turned on.
From what I'm reading, this sounds like it probably is either the fan control module or the fans themselves failed. Is the fact that both fans don't work in either high or low speed point to this being more likely to be a fan control module? Would this show up as a fault code on a VAG-Com scan?
Camry :: 2004 - Cooling Fans Not Turn On At Any Stage
I have a 2004 Camry that the cooling fans won't turn on at all. I checked one of the cooling fans by running direct power and it worked. I then checked all the fuses relating to fans and A/C. Then checked relays by using the horn relay in Fan 1 and Fan 3, which are both 4 pin. I bought a new relay for Fan 2 as it was a 5 pin and still no change. The fans don't come on at any stage, turning on A/C or letting the car idle to the point of the water boiling from overflow. I'm thinking it's not the sensors as the fans should turn on when the A/C is turned on.
View 3 RepliesPrius (Gen 2) :: Radiator Cooling Fans Running Constantly?
I can usually find what Im looking for with a quick search but I have had no luck with this issue.
View 19 RepliesGolf IV R32 :: Cooling Fans Continue To Run Until Battery Disconnected
After about 3 weeks, I finally get my 04 .:R32 back from the shop after getting a new fuel pump (long story there) and the mechanic mentioned the fans began to run and stay running when the key is turned to the on position and then turned off, key removed etc. I picked the car up tonight and repeated his claim turning the key to the on position and the fans kicked on and stayed on until the battery was disconnected. I am hoping there is an easy fix. What this could be? FCM maybe?
View 20 RepliesCaravan/Voyager :: 1998 - Engine Cooling Fans Won't Go On
I have a 1998 Caravan and the engine cooling fans wont go on. Ive replaced the relay and the temp sensor. When I pull the connector off the temp sensor the fans go on so I know the fans and fuses are fine. For some reason it seems the computer module isnt sending a signal to the relay to turn the fan on. I get the trouble codes P1491(radiator fan relay circuit fault) and P0118(engine coolant temp circuit high input).
I am also having a problem with the air conditioning not working. When I do the self diagnostic test on the A/C the results are that it fails the cool-down test. Why the computer module isn't sending a signal to the relay? Could the A/C problem be causing the cooling fans not to come on?
Celica :: Engine Cooling Fans Are Running All The Time
Both engine cooling fans on my 1986 Camry are running all the time; even when the engine is cold.
View 12 RepliesGTI 337/20th Anniversary :: Engine Cooling Fans Not Working At All
1999.5 golf afp engine cooling fans not working at all. fter run coolant pump also does not seem to be working. fcm changed still no luck fans do work when jumped straight to battery.
View 1 RepliesGolf IV / Jetta IV :: Only One Of Radiator Cooling Fans Working
I have a quick question, I got a 2005 mk4 gli, and when the cooling fans go on, only one works, the other one does not, I checked the fuse and its fine.
View 13 RepliesGolf IV R32 :: Cooling Fans Cycle On And Then Off Every Three Seconds When Start The Car?
Why recently the fan comes on when I start the car, then a few seconds later it turns off, then a few seconds later it's on regardless of outside temp or engine temp? Is this simply caused by a malfunctioning green coolant temp sensor? What type of electrical Gremlin causes our cooling fans to cycle "on" and then "off" every three seconds?!
View 1 RepliesPrius (Gen 2) :: 2006 - Radiator Cooling Fans Stopped Working
I own a 2006 Prius with 52k miles on it. Great car BTW. The problem is simple, the radiator cooling fans stopped working on high mode; they run around 25% only even, not removing the heat from the a/c evaporator and the radiator coolant. I checked fuses: OK, checked relays: OK. They spin freely and nothing is blocking the front face of the evaporator. Funny I noticed it when I started hearing the a/c compressor buzzing noise and then I realized the fan noise wasn't there!
View 7 Replies