Ok Guys,
Have a F150 2004 Lariat 5.4 Triton Crew Cab with Electronic/Auto Climate control (digitally displayed). Problem I'm having is it sounds like there is a vent door that is continuously opening and closing in the upper dash area near windshield in front of the steering wheel. When I turn the the system on the fan works but will cycle on and off ever 3 seconds or so. Have swapped out relays to check and didn't help, thinking either there might be something blocking the vent door from closing (or opening fully) so it's disabling the system, or that the controller is buggered. I've heard that there have been issues with foam etc. blocking vents and not allowing hot or cool air, but I would tend to think it would be something more electronic than mechanical given the symptoms.
Any input would be greatly appreciated.
regards,
Steve
Have a F150 2004 Lariat 5.4 Triton Crew Cab with Electronic/Auto Climate control (digitally displayed). Problem I'm having is it sounds like there is a vent door that is continuously opening and closing in the upper dash area near windshield in front of the steering wheel. When I turn the the system on the fan works but will cycle on and off ever 3 seconds or so. Have swapped out relays to check and didn't help, thinking either there might be something blocking the vent door from closing (or opening fully) so it's disabling the system, or that the controller is buggered. I've heard that there have been issues with foam etc. blocking vents and not allowing hot or cool air, but I would tend to think it would be something more electronic than mechanical given the symptoms.
Any input would be greatly appreciated.
regards,
Steve