why wont the a/c on my buick take freon
after running vacuum for 45 mins to negative 30 it doesn't want to take the new refrigerant only at a very slow pace ( 15 minutes per 12 oz. can ) and thats slow
Our experts haven't test driven this car yet.
Our experts haven't test driven this car yet.
Our experts haven't test driven this car yet.
Our experts haven't test driven this car yet.
Our experts haven't test driven this car yet.
Our experts haven't test driven this car yet.
after running vacuum for 45 mins to negative 30 it doesn't want to take the new refrigerant only at a very slow pace ( 15 minutes per 12 oz. can ) and thats slow
right now i closed the vents on the right side driver vents even one on front console for the driver vent which is releasing hot air even with the AC not on
I just bought a 2010 Buick enclave and a bit after buying it my traction control light came on and it said service stibilitrac then the check engine light came on and then abs light, not all 3 were on at the same times they were all random I took it to my mechanic and he said possible timing but I had to take it to a dealer for that so I did and they said it could be timing or sludge in the engine and I needed an engine replacement. I am some fuel system cleaner threw it and the lights went away for a while but they just came back on yesterday. Traction control then check engine then abs and then brake light. Took back to my mechanic and he said he didn't think the computer was communicating right and may need reprogrammed or replaced. And now this morning it wouldn't start at all. What is going on?
Hello my name is Joel and I have a 2010 Buick Enclave and it's actually my old lady's vehicle and she brought this to my attention a few days ago that the air is only blowing out of the dash, the AC cools just fine and the heater blows warm air just fine so that is not the issue so again the temperatures work perfectly the issue is controlling which vent the air blows out of and right now it's stuck on blowing out of the dash it won't blow down at your feet and it won't blow through the defrost vents whenever you hit the mode button it stays stuck on blowing out of the dash, I went ahead and replaced the mode door actuator and put in a new one and when I put it in I turned the ignition on and I pressed the mode button and I saw the actuator turning just fine so I know that it works, but now my problem is the air is blowing just out of the defrost vent and it's stuck on that, I believe my issue is having to calibrate it which I have no clue on how to do that, I removed the fuse on the inside of the vehicle passenger side which was the 15 amp HVAC fuse and left it out for about a minute and put it back in and turned the key on without actually turning on the ignition and I saw the actuator moving thinking that it would reset but it always ends back up in the same spot and stays stuck there, I'm not a mechanic so I don't have one of those iPads where I can just push a button to recalibrate the mode door actuator, I pretty much done everything I can and I'm about ready to pull my hair out, the only thing that I have not done is disconnected the battery to try and reset the mode door actuator, I've tried googling this and on this topic it is so hard to find any answers if you please have any answers to give me I would greatly appreciate it thank you
Anybody know what else could have my car to continually run hot? I can’t drive it not even 5 minutes before it starts to run hot. I’ve gotten a new thermostat, plenty of oil and transmission fluid...could it be the radiator?
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones · Automatic climate control third row air conditioning · Single third row air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Front side curtain airbags
Audio System
Antenna Type: mast · Auxiliary audio input: jack · Rear headphone jacks · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM · Total Number of Speakers: 6
Brakes
ABS: 4-wheel · Front brake diameter: 12.8 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 13.0 · Rear brake width: 0.8 · Rear brakes: ventilated disc
Comfort Features
Floor Mat Material: carpet · Floor Mats: front · Steering wheel trim: wood
Convenience Features
Center console: front console with storage · Cupholders: rear · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry · One-touch windows: 2 · Power outlet(s): 12V front · Reading lights: front · Steering wheel: tilt and telescopic · Steering wheel mounted controls: cruise controls · Storage: front seatback · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 8
Drivetrain
Axle ratio: 3.16
Exterior Features
Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · License plate bracket: front · Mirror color: body-color · Paint: special factory paint · Rear trunk/liftgate: liftgate
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 2
In Car Entertainment
Video monitor location: dual rear · Video system: DVD player
Instrumentation
Warnings and reminders: low oil pressure
Lights
Headlights: HID
Mirrors
Exterior mirrors: integrated turn signals
Passenger Seat
Adjustable lumbar support: manual · Power adjustments: 2
Rear Seats
Type: captains chairs
Roof
Roof rack: with crossbars · Roof rack color: chrome
Safety
Parking sensors: rear
Seatbelts
Seatbelt pretensioners: front
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Passenger Seating: 8 · Passenger seat manual adjustments: reclining · Rear seat folding: flat · Third row seat folding: split · Upholstery: premium cloth
Spare Tire
Kit: tire sealant · Size: temporary
Spare Wheel
Rim Type: steel · Rim type: aluminum alloy
Steering
Steering ratio: 16.1 · Turns lock-to-lock: 2.90
Suspension
Front Arm Type: lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: MacPherson struts · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Phone: voice activated · Phone wireless data link: Bluetooth · Satellite communications: OnStar
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Wheels
Wheel spokes: 6
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones · Automatic climate control third row air conditioning · Single third row air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: mast · Auxiliary audio input: jack · Rear headphone jacks · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM · Total Number of Speakers: 6
Brakes
ABS: 4-wheel · Front brake diameter: 12.8 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 13.0 · Rear brake width: 0.8 · Rear brakes: ventilated disc
Comfort Features
Floor Mat Material: carpet · Floor Mats: front · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cupholders: front · Dimming rearview mirror: auto-dimming · Multi-function remote: keyless entry · One-touch windows: 2 · Power outlet(s): 115V · Reading lights: front · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio · Storage: cargo net · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 8
Drivetrain
4WD Type: full time · Axle ratio: 3.16 · Limited slip differential: center
Exterior Features
Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · License plate bracket: front · Mirror color: body-color · Paint: special factory paint · Rear trunk/liftgate: power operated
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 2
In Car Entertainment
Video monitor location: dual rear · Video monitor size: 7 · Video system: DVD player
Instrumentation
Warnings and reminders: low fuel level
Lights
Headlights: HID
Mirrors
Exterior mirrors: manual folding
Passenger Seat
Adjustable lumbar support: manual · Power adjustments: 2
Rear Seats
Type: 60-40 split bench
Roof
Roof rack: with crossbars · Roof rack color: chrome
Safety
Parking sensors: rear
Seatbelts
Seatbelt pretensioners: front
Seats
Driver seat power adjustments: height · Front seat type: bucket · Passenger Seating: 8 · Passenger seat manual adjustments: reclining · Rear seat folding: flat · Third row seat folding: split · Upholstery: premium cloth
Spare Tire
Kit: inflator kit · Size: temporary
Spare Wheel
Rim Type: steel · Rim type: aluminum alloy
Steering
Steering ratio: 16.1 · Turns lock-to-lock: 2.90
Suspension
Front Arm Type: lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: MacPherson struts · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Phone: voice activated · Phone wireless data link: Bluetooth · Satellite communications: OnStar
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Wheels
Wheel spokes: 6
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones · Automatic climate control third row air conditioning · Single third row air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: mast · Auxiliary audio input: jack · Rear headphone jacks · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · Bose premium brand speakers · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM · Surround audio: 5.1 · Total Number of Speakers: 10
Brakes
ABS: 4-wheel · Front brake diameter: 12.8 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 13.0 · Rear brake width: 0.8 · Rear brakes: ventilated disc
Comfort Features
Armrests: rear center folding with storage · Floor Mat Material: carpet · Floor Mats: front · Steering wheel trim: wood
Convenience Features
Center console: front console with storage · Cupholders: rear · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: side mirrors · Multi-function remote: keyless entry · One-touch windows: 2 · Power outlet(s): 12V front · Reading lights: front · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio · Storage: cargo net · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 8
Drivetrain
Axle ratio: 3.16
Exterior Features
Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · License plate bracket: front · Mirror color: body-color · Paint: special factory paint · Rear trunk/liftgate: power operated
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 2
In Car Entertainment
Video monitor location: dual rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: low oil pressure
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: integrated turn signals
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 4
Rear Seats
Type: 60-40 split bench
Roof
Rear sunroof: fixed glass · Roof rack: with crossbars · Roof rack color: chrome · Sunroof: dual-panel
Safety
Camera system: rearview · Child seat anchors: LATCH system · Parking sensors: rear
Seatbelts
Front seatbelts: 3-point · Seatbelt pretensioners: front · Second row seatbelts: 3-point
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Passenger Seating: 8 · Passenger seat power adjustments: reclining · Rear seat folding: flat · Third row seat folding: split · Upholstery: leather
Spare Tire
Mount Location: underbody · Size: temporary
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 16.1 · Turns lock-to-lock: 2.90
Suspension
Front Arm Type: lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: MacPherson struts · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): front
Telematics
Navigation system: DVD navigation system · Phone: voice activated · Phone wireless data link: Bluetooth · Satellite communications: OnStar
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome aluminum
Wheels
Wheel spokes: 15
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: with washer
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones · Automatic climate control third row air conditioning · Single third row air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: mast · Auxiliary audio input: jack · Rear headphone jacks · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · Bose premium brand speakers · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM · Surround audio: 5.1 · Total Number of Speakers: 6
Brakes
ABS: 4-wheel · Front brake diameter: 12.8 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 13.0 · Rear brake width: 0.8 · Rear brakes: ventilated disc
Comfort Features
Armrests: rear center folding with storage · Floor Mat Material: carpet · Floor Mats: front · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cupholders: rear · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: side mirrors · Multi-function remote: keyless entry · One-touch windows: 2 · Power outlet(s): 115V · Reading lights: rear · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio · Storage: cargo net · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 8
Drivetrain
4WD Type: full time · Axle ratio: 3.16 · Limited slip differential: center
Exterior Features
Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · License plate bracket: front · Mirror color: body-color · Paint: special factory paint · Rear trunk/liftgate: power operated
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 2
In Car Entertainment
Video monitor location: dual rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: coolant temperature warning
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: manual folding
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 4
Rear Seats
Type: captains chairs
Roof
Rear sunroof: fixed glass · Roof rack: with crossbars · Roof rack color: chrome · Sunroof: power glass
Safety
Camera system: rearview · Child seat anchors: LATCH system · Parking sensors: rear
Seatbelts
Front seatbelts: 3-point · Seatbelt pretensioners: front · Second row seatbelts: 3-point
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Passenger Seating: 8 · Passenger seat power adjustments: reclining · Rear seat folding: flat · Third row seat folding: split · Upholstery: leather
Spare Tire
Mount Location: underbody · Size: temporary
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 16.1 · Turns lock-to-lock: 2.90
Suspension
Front Arm Type: lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: MacPherson struts · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): front
Telematics
Navigation system: DVD navigation system · Phone: voice activated · Phone wireless data link: Bluetooth · Satellite communications: OnStar
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Wheels
Wheel spokes: 15
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: with washer
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones · Automatic climate control third row air conditioning · Single third row air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: mast · USB auxiliary audio input · Rear headphone jacks · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · Bose premium brand speakers · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM · Surround audio: 5.1 · Total Number of Speakers: 10
Brakes
ABS: 4-wheel · Front brake diameter: 12.8 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 13.0 · Rear brake width: 0.8 · Rear brakes: ventilated disc
Comfort Features
Armrests: rear center folding with storage · Floor Mat Material: carpet · Floor Mats: front · Steering wheel trim: wood
Convenience Features
Center console: front console with storage · Cupholders: front · Dimming rearview mirror: auto-dimming · Memorized settings: side mirrors · Multi-function remote: keyless entry · One-touch windows: 2 · Power outlet(s): 115V · Reading lights: front · Steering wheel mounted controls: cruise controls · Storage: cargo net · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 8
Drivetrain
Axle ratio: 3.16
Exterior Features
Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · License plate bracket: front · Mirror color: body-color · Paint: special factory paint · Rear trunk/liftgate: liftgate
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 2
In Car Entertainment
Video monitor location: dual rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: lamp failure
Lights
Headlights: Auto on/off
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 4
Rear Seats
Type: captains chairs
Roof
Rear sunroof: fixed glass · Roof rack: with crossbars · Roof rack color: chrome · Sunroof: sliding sunshade
Safety
Camera system: rearview · Parking sensors: rear
Seatbelts
Seatbelt pretensioners: front
Seats
Driver seat power adjustments: height · Front seat type: bucket · Passenger Seating: 8 · Passenger seat power adjustments: reclining · Rear seat folding: flat · Third row seat folding: split · Upholstery: leather
Spare Tire
Mount Location: underbody · Size: temporary
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 16.1 · Turns lock-to-lock: 2.90
Suspension
Front Arm Type: lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: MacPherson struts · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): rear
Telematics
Navigation system: DVD navigation system · Phone: voice activated · Phone wireless data link: Bluetooth · Satellite communications: OnStar
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: intermittent
Air Conditioning
Automatic climate control front air conditioning · Dual front air conditioning zones · Automatic climate control rear air conditioning · Single rear air conditioning zones · Automatic climate control third row air conditioning · Single third row air conditioning zones
Airbags
Dual front airbags · Passenger airbag deactivation: occupant sensing deactivation · Front side airbags · Rear side curtain airbags
Audio System
Antenna Type: mast · Auxiliary audio input: jack · Rear headphone jacks · Wireless headphones · Single disc in-Dash CD · MP3 player: CD MP3 Playback · Premium Brand: Bose · Bose premium brand speakers · AM/FM radio · Rear audio: rear volume control · Satellite Radio: SiriusXM · Surround audio: 5.1 · Total Number of Speakers: 10
Brakes
ABS: 4-wheel · Front brake diameter: 12.8 · Front brake width: 1.1 · Front brakes: ventilated disc · Rear brake diameter: 13.0 · Rear brake width: 0.8 · Rear brakes: ventilated disc
Comfort Features
Armrests: rear center folding with storage · Floor Mat Material: carpet · Floor Mats: front · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cupholders: front, rear and third row · Dimming rearview mirror: auto-dimming · Memorized settings: side mirrors · Multi-function remote: keyless entry · One-touch windows: 2 · Power outlet(s): 12V · Reading lights: front · Steering wheel mounted controls: audio · Storage: front seatback · Vanity mirrors: dual illuminating
Driver Seat
Adjustable lumbar support: power · Power adjustments: 8
Drivetrain
4WD Type: full time · Axle ratio: 3.16 · Limited slip differential: center
Exterior Features
Exhaust: dual exhaust tips · Exhaust tip color: chrome · Grille color: chrome · License plate bracket: front · Mirror color: body-color · Paint: special factory paint · Rear trunk/liftgate: liftgate
Headrests
Front headrests: adjustable · Number of front headrests: 2 · Number of rear headrests: 2 · Number of third row headrests: 2
In Car Entertainment
Video monitor location: dual rear · Video monitor size: 8 · Video system: DVD player
Instrumentation
Warnings and reminders: coolant temperature warning
Lights
Headlights: Auto on/off
Passenger Seat
Adjustable lumbar support: power · Power adjustments: 4
Rear Seats
Type: captains chairs
Roof
Rear sunroof: fixed glass · Roof rack: with crossbars · Roof rack color: chrome · Sunroof: dual-panel
Safety
Camera system: rearview · Parking sensors: rear
Seatbelts
Seatbelt pretensioners: front
Seats
Driver seat power adjustments: reclining · Front seat type: bucket · Passenger Seating: 8 · Passenger seat power adjustments: reclining · Rear seat folding: flat · Third row seat folding: split · Upholstery: leather
Spare Tire
Mount Location: underbody · Size: temporary
Spare Wheel
Rim type: aluminum alloy
Steering
Steering ratio: 16.1 · Turns lock-to-lock: 2.90
Suspension
Front Arm Type: lower control arms · Front Shock Type: gas shock absorbers · Front Spring Type: coil springs · Front Suspension Classification: independent · Front Suspension Type: MacPherson struts · Rear Shock Type: gas shock absorbers · Rear Spring Type: coil springs · Rear Suspension Classification: independent · Rear Suspension Type: multi-link · Stabilizer bar(s): front
Telematics
Navigation system: DVD navigation system · Phone: voice activated · Phone wireless data link: Bluetooth · Satellite communications: OnStar
Third Row Seat
Type: 40-60 split bench
Tires
Type: all season
Tires and Rims
Wheel type: aluminum alloy · Wheels: chrome aluminum
Windows
Front wipers: intermittent · Liftgate window: fixed · Rear wiper: intermittent