Cold Air Blowing out the Heater and temp guage wacky

wakaa06 · #1 02-01-2010, 10:38 PM

I just got a 94 ranger STX with the 4.0 and the heater is blowing cold air, my tamp guage goes up to the line and sometimes stays there, and There is a ticking sound coming from the motor. Any Help would be greatly appriciated Thanks

bigcountry · #2 02-02-2010, 12:27 AM

id say you have a problem with little knowledge on this id say it could be a couple of things. 1.thermostat maybe bad. 2. id say blocked heater core. 3. dirty coolant system. start off first by running some coolant system cleaner and flush the entire thing even the heater core lines.

wakaa06 · #3 02-02-2010, 05:37 AM

I had it kinda down to those 3 things but I wasnt sure I just wanted to get more info from someone else before I start buying all kinds of stuff Thanks tho

FireRanger · #4 02-02-2010, 06:21 AM

Quote:

Originally Posted by wakaa06

...the heater is blowing cold air, my tamp guage goes up to the line and sometimes stays there

The gauge goes up to what line???

Cold air usually means either you have low coolant or the thermostat is sticking open. On a cold engine, your radiator should be full and the reserve tank should be 1/2 filled. You need a 50/50 mix of water and antifreeze. The thermostat is easy to unbolt and replace and its cheap. When it sticks open, the engine will never warm up.

wakaa06 · #5 02-02-2010, 08:33 PM

Well I replaced the heater core and thermostat and it is still over heating and it still plays cold air I dont get it. I drained the radiator and it was nasty my buddy told me to just leave the radiator cap off and put the hose in it and let it run for about 10 min any ideas plz I just got this truck

ObsoleteE · #6 02-02-2010, 08:35 PM

Hopefully the coolant flush will help. Were you losing coolant at all? Any white smoke coming from the exhaust? I hope its not a bad head gasket. Check your oil to see if it looks milky.

wakaa06 · #7 02-02-2010, 08:45 PM

I looked at the oil its not milky I wasn't losing coolant, and I havnt noticed any white smoke

ObsoleteE · #8 02-02-2010, 08:55 PM

Well, that's good. Can't be worse than a head gasket. GL.

bigcountry · #9 02-02-2010, 09:10 PM

i would get some flush and and with flush you have to run straight water with it and it needs to run for about 10 to 20 mins with the heater on full blast. after all that is said on here im out of ideas

wakaa06 · #10 02-03-2010, 04:33 AM

only other thing I can think of is the water pump or the radiator is extremly dirty but it doesnt look like it

FireRanger · #11 02-03-2010, 05:03 AM

Its either clogged or your water pump is not working.

wakaa06 · #12 02-03-2010, 10:22 PM

I figured it out after replacing the thermostat, heater core, and radiator it was the water pump all along that dirty devil lol Thanks for all the help