the engine heats up fine. the cooling system builds up pressure, and all the hoses are getting hot. yet all i have is cold air coming out of the vents? please help it is getting cold in nebraska.
2006-12-20 02:07:59 · 3 answers · asked by natallbad 4 in Cars & Transportation ➔ Car Makes ➔ Nissan
You might have a clogged heater core. But you could also have a bad set of HVAC controls.
Have your local dealer check your vehicle out. In the meantime, try using your A/C controls, moving the temp back and forth from hot to cold. If you don't notice a measureable difference, it's probably your controls or the fuse for your controls. Might save you a trip.
2006-12-20 02:18:20 · answer #1 · answered by Lemar J 6 · 0⤊ 0⤋
You need to first check that the heater valve is opening and allowing hot water into the heater core. with the engine warmed up feel both heater hoses (small, about 1 inch, hoses going from the engine compartment in the cab) are both just as hot as the radiator hoses?
Also there is a TSB (Technical Service Bulletin) from Nissan reference little or no heat:
TSB# 02-047A dated 8/13/2003 Poor Performance Heater.
Check with a dealer to see what they would charge to perform the TSB.
Happy Holidays
2006-12-20 02:24:52 · answer #2 · answered by shovelkicker 5 · 1⤊ 0⤋
Check your anti-freeze level. It may be low.
2016-05-22 23:55:37 · answer #3 · answered by ? 4 · 0⤊ 0⤋