ok I own a 94 Acura Integra ls with a transmission swap bought it used low milage about 4 months ago and it has no heat blowing outt when I turn on the heater .the blower does work just not got . my car doesn’t overheat it runs at normal temp but when I try to turn on the heat it blows outside temp ... and I live in newhampshire so it’s starting to get cold..... I have seen here many different things but always ends up in other issues or off the post so i am starting one please help as soon as possible
Also I have done the proper coolent bleeding so there is no air in it but still no heat .
thanks
grimintegra

 

check your heater hose routes

 

What line should I follow I know two smallish lines from. The bottom of the radiator has nails in them I was told it was from when it was a automatic to cool the transmission. But idk and I will do it in the morning after I get some sleep .. I work third shift .i will keep everyone posted after I trace the lines ...

 

This is where the heater hoses connect. The little valve to the left is connected to the temperature slider in the cabin and is normally connected to the leftmost nipple by a short hose. When the valve is open, hot coolant flows through it, into the left nipple, through the heater core, and out the right nipple back to the engine.

The valve could be broken/disconnected, or the heater core could be clogged. Backflushing it might buy you some time if that's the case.

 

Ok I looked I found the lines they are there and connected I turn on heat and the left line closed to the right side of the car has pressure so is it possible clogged ?? And how could I fix this with making a big mess

 

you likely need a new core which means pulling the dash, not fun but doable.
i have an extra core laying around so can send it for free. you pay postage.
fugged up my heater core connections doing the rear motor mount, pulled the dash but then
managed to unfug the connections thus the surplus core.

 

well I did read on here for average joe it takes about 14+hours to do it yourself so it would need to be a. Weekend fix I work nights Sunday night too Thursday night into Friday morning lol

 

rockauto wants 10 bucks to ship one so that sounds fair.
i'll pm you my paypal info.

 

Backflush your heater core before you replace it, MUCH easier and costs basically nothing so might as well give it a shot.

 

check to see if the thermostat failed open, that would keep the engine from heating up. It stays open and in the cold it never heats up, I have this problem in my civic. In the rain I have no heater or defroster.

 

ITs fixed my timing belt went got it fixed and I have heat after they put a new water pump and new belts in
thanks everyone for your feedback and help