Forum Replies Created
-
Replies
-
I’m gonna call the Honda Tech Line tomorrow.I wanna talk to them and see if they have seen any cases like this. The most annoying thing is that it does not happen when i drive the car. I drove this thing full heat literally an hour on the highway and around town..The customer says he has had the car over 7 years and this is the first year this is happening..Also there is no hot tank in this car but again, this car is first generation hybrid so the motor runs at all times with or without battery assist.. so does the water pump..I think as long as the water pump turns, it has to flow the coolant all around cooling components. I can’t wait to see what tech line is gonna tell me tomorrow..
I’m gonna call the Honda Tech Line tomorrow.I wanna talk to them and see if they have seen any cases like this. The most annoying thing is that it does not happen when i drive the car. I drove this thing full heat literally an hour on the highway and around town..The customer says he has had the car over 7 years and this is the first year this is happening..Also there is no hot tank in this car but again, this car is first generation hybrid so the motor runs at all times with or without battery assist.. so does the water pump..I think as long as the water pump turns, it has to flow the coolant all around cooling components. I can’t wait to see what tech line is gonna tell me tomorrow..
Water pump is driven by the serpentine belt and the only way water pump can fail is it can freeze up(wont turn anymore), water pump can leak or shatter internally which would make so much noise. I do not have any of these symptoms..
Water pump is driven by the serpentine belt and the only way water pump can fail is it can freeze up(wont turn anymore), water pump can leak or shatter internally which would make so much noise. I do not have any of these symptoms..
Let’s think about this.. The car does not overheat and has constant good heat all week long.. but some days it has this heat problem. So if this was related to air in the system which I bled for about 30 minutes and thermostat, It would happen every time you drive the car. Customer says that in 2 weeks, it happened twice only.. heater core and the radiator are all OEM Honda products. Nothing on this car is after market. Any more ideas? How about some restriction inside the engine? Coolant restriction inside the engine block coolant passages? or inside the cylinder head? Cylinder leak down test checked perfect. No leakage. I wouldn’t think it would be related to head gasket..The oil condition and level look normal. No white smoke or hesitation with this car. No power loss.
Let’s think about this.. The car does not overheat and has constant good heat all week long.. but some days it has this heat problem. So if this was related to air in the system which I bled for about 30 minutes and thermostat, It would happen every time you drive the car. Customer says that in 2 weeks, it happened twice only.. heater core and the radiator are all OEM Honda products. Nothing on this car is after market. Any more ideas? How about some restriction inside the engine? Coolant restriction inside the engine block coolant passages? or inside the cylinder head? Cylinder leak down test checked perfect. No leakage. I wouldn’t think it would be related to head gasket..The oil condition and level look normal. No white smoke or hesitation with this car. No power loss.
That’s a good approach but there are 2 things..when there is auto climate you choose that option. I mean there is an ” auto button” you push on..that adjusts the temp. In this case customer is not using the auto button. Even if he did, the blower shouldn’t blow cold and run at the same speed..that’s my theory..anyone else has any ideas?
That’s a good approach but there are 2 things..when there is auto climate you choose that option. I mean there is an ” auto button” you push on..that adjusts the temp. In this case customer is not using the auto button. Even if he did, the blower shouldn’t blow cold and run at the same speed..that’s my theory..anyone else has any ideas?
The car blows heat at all times when I have it. Customer has a commute of approximately 40miles. So generally he is on the highway. At highway speed, it blows hot and all of a sudden cool air would start coming out of the vents. this would be like that for a little bit and then it would go back to hot air. So if there was any air in the system, most likely car would overheat. He does not have any issues like that. Temp gauge is perfect where it’s supposed to be.. 50-60mph on a highway speed, cool air would come out of the vents..after a while, it would go back to hot. Is there anyone else that want to suggest or give any ideas?
The car blows heat at all times when I have it. Customer has a commute of approximately 40miles. So generally he is on the highway. At highway speed, it blows hot and all of a sudden cool air would start coming out of the vents. this would be like that for a little bit and then it would go back to hot air. So if there was any air in the system, most likely car would overheat. He does not have any issues like that. Temp gauge is perfect where it’s supposed to be.. 50-60mph on a highway speed, cool air would come out of the vents..after a while, it would go back to hot. Is there anyone else that want to suggest or give any ideas?
Customer left the car over the weekend and I had a chance to drive around and try to duplicate the problem after i replaced all those components. So I went from hot to cold, cold to hot so many times and had no issues with it. This car is automatic HVAC. It has a nob and It tells you the degrees as you turn the nob either way such as 85Degrees and whatnot on the display. Blend door is operated by the actuator which controls the cable for the door. When I removed the case for the heater core, I played with the blend door to make sure it was not stuck or anything. It was moving just fine. I dont know what else can cause heat to pause and resume..
Customer left the car over the weekend and I had a chance to drive around and try to duplicate the problem after i replaced all those components. So I went from hot to cold, cold to hot so many times and had no issues with it. This car is automatic HVAC. It has a nob and It tells you the degrees as you turn the nob either way such as 85Degrees and whatnot on the display. Blend door is operated by the actuator which controls the cable for the door. When I removed the case for the heater core, I played with the blend door to make sure it was not stuck or anything. It was moving just fine. I dont know what else can cause heat to pause and resume..