2009 Tacoma Heater, am I just being too anal here?

I missed that, if that's the case I would say the hearter core has blockage and may need to be changed out.

 

what temp thermostat did you put in.

 

Dude... just pulled out the cabin filter... FULL of dust, leaves, dirt.... could this be the issue?

 

Jake,

This was done in the Shop, they said it was replaced with the stock thermostat.

 

I would think you def have an issue. It should not cool back off after its up to temp.

 

doubt this would be your problem, but wouldnt hurt to replace. dont know if thet put different range thermostats in from factory would have to ask dealership, but could try a 195 degree one.

 

Hi All,

What is the best way to bleed the air system on this truck?

Thanks!

 

You have a low coolant level and the air pocket is preventing proper flow when idling.

http://www.google.com/#hl=en&tbo=d&sclient=psy-ab&q=Air+pocket+causing+low+heater+at+idle&oq=Air+pocket+causing+low+heater+at+idle&gs_l=hp.3...3819.16492.0.16756.37.35.0.2.2.8.1867.16752.5j14j1j0j1j4j1j5j2.33.0.les%3B..0.0...1c.1.UbmQ5dHQ_G4&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.&bvm=bv.1355534169,d.aWc&fp=eeaed9fac54bfaee&bpcl=40096503&biw=1280&bih=862

Fill the side tank.
Remove the radiator cap.
Set heater to max heat.
Run the engine up to normal temperature.
Add coolant as the level drops in the radiator.
Continue until the radiator level is stable.
Massage the upper hose as some air seems to get trapped there.

 

jimmy has a great point. especially since someone else flushed the system. adding air bleeds may be my next project on my truck lol.

and just in case, your truck didnt ask for coolant change till 100k miles. it is a good system with a good factory antifreeze. dont use anything but specified coolant.

if the above post is incorrect, your looking at a faulty water pump, a clogged coil, an innability to maintain temperature which your new t-stat should have addressed, or some other anomaly which would be considered extremely rare for your truck

what about temprature at your guage, does it fluctuate? im still learning obdII systems but i know my car will throw a code for a coolant temp fluctuation. as in it got low temp after reaching operating temp in the same operating cycle. do you have a cel? this could be inconsequential as i believe the temp. to guage and temp to ecu to use different senders. i.e. one may show fluctuations while the other may not. this would indicate an air pocket

 

This^ I live in Maine my heater works fine it's not normal for it to act like that.

 

You forgot an important step...

Re-install the radiator cap



kidding..All good points and everything I always followed but thought I'd throw this next piece in there. I don't know if it's proper, so maybe a real mechanic can chime in BUT, whenever I did a coolant flush I would have the front of the car on ramps, or at least something to elevate it. I did it w/ the hope of maybe encouraging any air bubbles to the higher point, which is hopefully away from the heater core and more towards the radiator cap. Well, truth be told, I had the front elevated so that I could crawl under there and undo the drain plug and situate the catch can, etc. I just left it on the ramps for the aforementioned reason
Don't know if it's necessary or not but I always did that and I always had luck w/ my coolant changes

 

Was there any solution to this problem?

 

Yes, This:

You have a low coolant level and the air pocket is preventing proper flow when idling.

http://www.google.com/#hl=en&tbo=d&s...w=1280&bih=862

Fill the side tank.
Remove the radiator cap.
Set heater to max heat.
Run the engine up to normal temperature.
Add coolant as the level drops in the radiator.
Continue until the radiator level is stable.
Massage the upper hose as some air seems to get trapped there.

Reinstall the Radiator Cap.