I drove about 25 mi today, made a brief stop and then continued home. On the return trip, the system would not blow any air in any mode at all. While driving, I cycled it through various modes and it would not do a damn thing. Later in the day I started up and it worked fine... What might cause that to occur?
View 7 RepliesMy parking assist warning system has suddenly stopped working. (2007 LS460) I'm thinking I may have disabled it while pushing some other buttons or doing something else. I changed the distance to farthest but that didn't work. It was working perfectly last week. I did disable the auto down tilt on the steering wheel. Could this have also disable the parking assist?
View 10 RepliesThe water was not actually getting into the HVAC itself, but getting past the air inlet assembly from under the leaf screen directly into the firewall area. I will try a gasket maker that comes in rolls that I can press into place. there is no room for tools there.
Everywhere around the heater and AC module is dry. The foam on the inside firewall immediately under the air inlet assembly is soaked, yet the inside of the assembly is bone dry. I removed the entire to diagnose the leak. A light rain was enough to fill the back foot well with an inch of water.
My 2003 Passat has a musty smell coming from the HVAC system that just won't go away. Have resealed pollen filter and had airsept treatment (this worked for a while, but now the smell is worse than ever). Two dealers have tried (and failed) to fix this. It's so bad I can't take passengers in the car.
View 5 RepliesI have a 2013 Camry SE that is, out of the blue, not blowing any air from the HVAC system. I checked the 2 A/C fuses any they are ok. The lights light up on the control panel like normal and the rear window defogger works correctly, so I don't think it's the control panel. I can't find any fuses or relays relayed to the blower motor in either fuse box.
What else should I check? The car is still under warranty (for a month!) but if it's a cheap and easy fix, I'd rather save the hassle of giving it to the dealer for a day and fix it myself.
Our 2002 Camry SE V6 incurs a burning odor through the HVAC system after braking from moderate or higher speeds (at low speeds, this does not happen). It can last for a few seconds or a few minutes and then goes away (it does not happen while in motion). I cannot smell anything outside the car.
The car was inspected & serviced two months ago with no issues found. The front valve cover was replaced about a year ago but the back valve cover was OK to leave as is.
I would want to say it is the brakes or the snow tires causing the odor but it is strange it only smells inside the car.
My 08 B6 wagon has a very foul odor emanating from the HVAC system. It started after my wife washed the windshield with vinegar to get rid of some scaling from the bizarre water we have here. She thought the smell was from some of the vinegar running off the windshield. Well, that was several months ago and the smell is no better. Just recently, the temps have been down enough to turn off the AC switch and the smell is even worse.
View 4 RepliesTwo related problems:
1) Our 2008 dodge grand caravan's recycled cabin air/exterior air flipper is broken. You know, makes the clicking clunking sound until it gives up?
2) Unfortunately this has made the exhaust smell that much worse.
Usually when you drive above 35mph you don't catch engine fumes, but when its anything less you fear you're poisoning your family into early cancer. Obviously we have a leak in the HVAC system somewhere and anytime we take it somewhere for service on something else they just shrug their shoulders.
How to locate the leak so I can keep the engine compartment out of our a/c?
I was just wondering where the interior temperature sensor of the hvac system is located?
View 2 Replies2014 TDI Passat with 66k miles. No unusual problems until this point. Three days ago I began to notice a strong ammonia odor coming through the ac vents. Its become significantly worse over the last 24 hours. The vaporized ammonia is sufficiently concentrated to cause eye and nasal irritation. It occurs rapidly, within 30 seconds of turning on the recirc mode. Turning off the recirc mode can clear the cabin quite fast as well. There is no odor or leak perceptible in the engine compartment, under the car, or in the trunk space.
No check engine warning or alarm that there is a problem with the DEF system. DEF fluid container was last topped off about 5k miles ago. Clearly, this is a significant failure of the emission system. I've done a cursory search but have not seen this exact problem written up before. Wondering why a car would be designed with the HVAC close to the to the exhaust/emissions system that it could capture gasses intended for the exhaust system? Its not so much the ammonia I/m worried about as the odorless and toxic Nox gasses the emission system should be reducing. getting dropped off at the dealer tomorrow.
I have a 2007 GX 470 that I use to tow a boat ~3500 lbs. Typically, when I attach the boat to the trailer hitch, the rear end of my GX 470 will lower ~1.5", then the air suspension will activate and bring the rear end back up to a nearly level position. Lately, the air suspension has quit working.
I've taken it to my dealership, they've checked it out and told me that the system is working fine. When I brought it home and attached the boat, the air suspension is still not working. I've got an appointment on Monday to haul the boat up to the Lexus dealer and show them the problem. I can use the air suspension switch to raise the the rear end and the pump seems to work just fine.
I'm thinking that, although the "system" is working fine, somewhere there has to be a sensor or switch that tells the system to work - that isn't working.
This car has been great in terms of reliability and no leaks (read not a drop) anywhere.
Today it has decided to quit without notice.
Turn the ignition and it appears to be turning off/on rapidly sort of like maybe it's shorting or something. Dash lights go off/on as this occurs. No attempt to start... as you hold the key on start dash lights the rapid on/oof action described above.
Where I should start troubleshooting this thing??
Experienced the problem of a flashing defrost button and the entire HVAC system "frozen"? All the other buttons become useless while the defrost button is flashing on and off. If I then hold either the a/c button or the auto button, the system starts up at 75 degrees with the air running. I can then adjust to where I want it to be.
View 13 RepliesI was recently on a trip pulling my 32' Travel Trailer, and out of the Hvac system started blowing scalding hot air and soot and smoke into the cab. I pulled over to check things out and could find nothing wrong. When the turbo kicks in it blows even hotter. I could find nothing wrong at the time. As I got back on the road again it started again a few miles down the road.
I made it home and started checking things out. Around the dash, airbag, glove box, on the window , headliner and carpeting, is covered in soot and smoke. the computer is now telling me that ALL the doors are ajar, power locks and key fob do not work, 3/4 of the window switches do not work and 1 window does not work now. I removed the glove box and the panel underneath it to look at the HVAC system.
What I saw about made me cry. The Plastic that houses the HVAC system had started melting and the HVAC hoses have melted. I have still not found the reason for any of this to happen. Also when I got the truck a year ago the Turbo would spool up around 1800 to 2000 RPM. Now it does not spool up until around 3000 to 3250 RPM.
HVAC system and hose
HVAC system housing
Glove Box and Vent
Air bag and Vent
I've got a 2008 GX470 with 38K miles. My problem is that the driver's side front turn signal has quit now for the fifth time! The first 3 times, the dealer's shop said that it was a loose bulb, the was some grit in the socket (which there should not be), etc. The fourth time they replaced the wiring harness. Yesterday, the bulb went out for the fifth time. This is occurring every 4-6K miles. I use my vehicle exclusively on city/highway driving. No off/rough road at all.
View 5 RepliesMy 2007 F150's turn signals and hazard lights quit working. I checked the fuse and it was blown. Once I pulled the old fuse out the truck wouldn't start at all. What happened?
View 3 RepliesI have recently decided to not renew any XM services on my 13 GS. One unintended consequence of that decision seems to be a surprise. My slow start of the navigation system is gone. The system starts up instantly every time. I have observed it for 4 days now, and not a single slow start. Not sure if the problem is in the XM receiver, or the way the navigation tries to consume the XM data services, but it's definitely related to XM.
View 7 RepliesI have a 2008 Chevy HHR. On Monday both the key fobs for the keyless entry system quit working. I took both fobs to my local auto parts place where they had a tester and both seemed to work ok. What inside the car receives the signal from the remotes and activates the locking mechanism. All other electronics within the car is working. On Monday we had to have the car jump started when someone left the key in the ignition on Acc setting. Besides testing the fobs I changed the fuse for the Body Control Module (BCM).
View 1 RepliesI drove the car yesterday night for about 30 mins and parked it at home and after one hour went back to start the car but it wont start. All the lights working fine it gave me an error saying check VSC system and whenever i start the car it gives me sound zzzzzzzzzzzzzzzzz and ends with a fan sound but wont start ...
View 14 RepliesMy dual gas tanks quit switching over. I replaced the fuel line selector valve and the selector switch. Now my gas gauge will not work on either tank.
1979 camper special E350 fuel system...
Started the car this morning- and got a message. "Check parking brake system" .
The Auto button for the parking brake seems to flicker, and the park light on the dash blinks. Car make ding sound while driving.
2008 LS460