Ford A/C :: Clicking Relay Sound Under The Truck Only When AC Turned On
Jul 14, 2012
I'm new to diagnosing AC issues in automotive applications but understand how it works and am mechanically capable. Anyway, when i turn the AC on, to max or normal the fan blows with no cold at all. I did notice a clicking relay sound under the truck only when the AC was turned on, it happens every 2-3 seconds. Does my system need recharged, or is it a bad relay? Also, is there a guide on recharging my sig rig?
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2005 passat
Turn on blinker , turn, blinker shuts off.. But the relay keeps clicking for a 20 seconds. It's kinda annoying... Sounds like it coming from behind the stereo..
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2000 excursion V-10. I parked the truck, went back to start it and all my gauges blink, and the number one relay under the dash (interior light relay) begins clicking. The truck will not even crank. The relay will continue clicking (even with the key off) until you remove and replace the relay. Sometimes I will get absolutely nothing when I turn the key. I have tried jumping the battery, no change. Also tried starting it in neutral to trouble shoot the NSS, but it won't even click when in neutral. I checked battery connection, and followed the battery cables to look for a short but found nothing.
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I have a 1985 Cutlass Ciera Brougham with the 2.5L four cylinder. It was driving and running great, and then one day it would not start. At first I thought that it might be the battery. I put my jump battery on and still nothing. I checked the battery voltage and it was good. Then I thought that it might be the starter. I crawled under the car and pulled the starter out. I took it to the store where I bought it just a year ago and had it tested, it passed. When the key is turned on all of the lights on the dash light up and the only sound that is heard is the fuel relay clicking on. The starter does not spin, click, hum, engage or make any indication that it is getting power. I put a wrench to the harmonic balancer bolt and I am able to spin the engine freely, so the engine is not seized. When the poles on the starter are jumped via a screwdriver the engine will crank, but will not start. Could a neutral safety switch or ignition switch that has gone bad cause such symptoms?
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I am having trouble with my 2001 F-150. Starting yesterday it would not start. At 1st i thought it wa the battery, so i took it off, charged it, put it back in the truck and still no start. There is a clicking noise coming from a relay in the cabin fuse box, disconnected the battery, removed relay to inspect and everything looks good. After plugging it back in, and connecting the battery, the truck still wont start and there is a clicking sound coming from the dash near the radio. Rhis is my work vehicle!!!
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My wife had the misfortune of the horn sounding each time the signal was turned on. Solved problem by not using signal... However, the horn still went off after the truck had been turned off for an extended period of time (long enough for her to leave and not hear the horn until returning a couple hours later). She was able to stop the horn by placing the vehicle in neutral (manual transmission). I have not been able to reproduce the problem. I thought it may be the "relay integration", but after removing this from the vehicle the signal does not work, but the horn still works. Is there a relay, switch, etc. that controls both of these devices?
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Can't seem to figure out what is making this clicking noise. It comes from under the dash, drivers side, under the steering column... Now as for when this happens, anytime! Truck on, idling, driving, truck off, key turned to acc or key to on. Also happens even when key is not in ignition?! What this could be? Brand new battery and connecting rings/wires.
Additional info: 1996, 2.3L about 150k miles on her and she's still going strong
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Relay-clicking sound coming from under the hood? at low speed in transition from brake to accelerator.
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Our V6 just turned 40k and it's developed some interesting sounds. First of all, from time to time at highway speed a whirring/whinning sound has developed. I was driving down the road the other night, no rain, about 60 degrees temp outside, and between 50 and 80 mph this noise seemed constant. I turned off the radio, turned off the climate control and the problem still existed.
It *sounds* like a drive train noise (my old jeep would make a sound when it was in a low gear that is similar). Second, also intermittent, a clicking relay from inside the dash on the drivers side. The frequency and rate are inconsistent and I can't correlate it to anything happening while driving.. just highway driving.
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The 2011 sonata gls won't start - i put key in, turn, lights come on but there is a clicking sound and the car won't start. Is this a battery issue?
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So as per my prior post i was having issues with my directional (blinker) the clicking sound would continue after the blinker turned off. Replaced the hazard warning relay (whole hazard switch) and the problem is still happening. I was playing with the actual blinker control arm today and i got it to make the clicking noise without the flashing light to come on so that seems to be what the problem is. Thinking to have that signal arm replaced? I think that it is not totally disengaging after i turn the wheel. is this something i could do myself? I have the bentley manual to take apart the steering wheel.
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I have a 2000 Ford X diesel with the 7.3 engine. About 2 years ago whenever I would drive it during the summer, and I would shut it off and then a few minutes later tried starting it again, it would start. It doesn't even turn over or making a clicking sound but it acts like the motor is dead. The lights and all the electrical work, but it doesn't turn over at all. It will start back whenever it cools down. It doesn't happen during the winter time or when its cool outside, only when the weather is hot. I've replaced both batteries and the starter but nothing happens. Tonight it did it again and I have to wait 20-30 minutes in the parking lot until it would start again.
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I have a 2002 Passat GLS and when I tried to start my car this morning, it would not start. When I turn on the ignition, the car gives off a loud clicking sound. The interior and exterior light works, the panel light works, and the radio works as well. What might be the problem?
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So I just replaced the front rotors and brake pads on my 06 Sonata. Before I replaced them, the front passenger side had a clicking sound coming from it when I turned. So I thought this whole time that I needed a new CV joint. But after I replaced the rotors and pads I took it for a test drive and I noticed that the clicking noise was gone! So I guess my question is, can bad brake pads and rotors cause a clicking sound when turning?
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When I turn off my car I always get out within 10-20 seconds until today. When I shut it off after a errand I was checking messages on my phone and after about 45 seconds I started hearing this repetitive clicking noise from the left side of the dash near the vent area by the door. It clicked about 5 times and stopped for about 20 seconds, then clicked 5 more times, stopped for 20 seconds and again, 5 clicks, then it stopped and didn't start again. I am not sure if it is just the computer making adjustments, etc, but it is a little unsettling on a new car with 320 miles.
I thought maybe a bomb was in there. It was about 90 degrees outside and I had been using the A/C. I plan on listening again tomorrow evening when I get home from work and see if it does it again. (My car is a '15 SE 2.4L if that makes a difference). Maybe I am just paranoid, but you buy a new car to get rid of worries, not still have to worry if your car is breaking down, but I know new cars have a lot of features/settings/computers, etc and certain sounds may be normal.
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My sis drove the Phaeton yesterday and we had to go through some nerve-wrecking parking. The gaps were only a few milimetres across but luckily we made it through the lot in the end. Anyway, we had to do a lot of full steering turns (that is, when the wheel is turned to its maximum) and there's a worrying clicking sound that goes on until the steering is turned back from its maximum radius. Is it a problem or just a minor thing?
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I just bought a 00 f150 4x4 with a 5.4 auto...it wouldn't start but not because something was wrong. it kept making a clicking sound and the theft light was one blinking...took my bronco to work and when I came home it started right up...I was thinking one of the keys didn't have the chip in it but it started with both keys....it doesn't have a key fob or keyless entry. I tried locking my drivers door with the key and unlock it...
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My 2001 F150 was dead, my son came in and told me Dad when I open the door I hear a clicking. Upon investigation a relay in fuse panel was clicking and I had to jump start the truck. NOTE- The truck has a brand new battery purchased 3 days prior to this issue.
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I installed an EP27 electronic turn signal relay and changed the tail bulbs to Sylvania red 3157Rs in our Exped and everything works fine. I installed another EP27 in our Excur and the relay starts clicking when nothing is on and nothing else has been changed - all stock bulbs and working fine before.
No lights are blinking, but the EP27 turn signal relay is clicking away. Select left turn, right turn or hazard lights and they blink fine. Deselect the lights and the relay continues to click. Swapped the relay from the Exped to the Excur and it clicks, too. Reinstalled the stock turn signal relay and all is fine. There must be some difference or problem in the wiring, it doesn't make sense.
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Ranger wont fire! fuel pumps not pumping..... Jumped fuel pump relay and got both pumps working, but while jumping relay and cranking motor, still no fire. Plenty of fuel pressure though. got spark too. Replaced relay and no pumps working while key is turned to run or while cranking. I got to get this sweet puppy back on the tarmac...
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I have a 98 f150 Lariat 4wd Automatic with a 2000 4.6. When i turn the key the only thing that happens is i hear a relay in the fusebox in the dash clicking. I can cross the starter relay on the firewall with a screwdriver and itll start right up. Heres what ive done troubleshooting wise.
1. Checked battery terminals. Fine, it will start with jumping the relay so it seems good with that regard.
2. Tested the relay per the manual. Good.
3.Ohms Tested the white ignition switch box under the dash per manual. Good
4. Voltage tested the Trans Range Sensor per manual. Good.
5. Checked over all fuses, none blown.
6. No theft lights come on.
I figure since it will start jumping the relay that the battery, starter, and starter solenoid are all good. Only thing i cant seem to find is the Starter Interrupt Relay, or any sign of fusible links on the main battery cables. I am really at a loss here i figured one of the components ive tested would be it.
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