X2! Make sure and let us know what fixes this.
FJ62 little heat from front heater - help needed
- Thread starter Rigger
- Start date
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X2! Make sure and let us know what fixes this.
ntsqd
technerd
I made the recommendation of using white vinegar from the grocery store instead of HCL ('Muriatic Acid' or 'pool acid') as it is far less harsh on things. I let it soak over two nights and I now have full garden hose flow thru the heater core where I barely had a trickle before. I flushed the core completely in both directions. Vinegar can still corrode bare metal though, so be thorough with the rinse cycle and don't let any spilled vinegar sit without a thorough rinsing.
not a problem...when I had the stock I-6 in my truck and I swapped out the thermostat and o ring and some other stuff, it was a good job to bleed the air out of the system.. The biggest issue is that your front heater core is the high point in the cooling system. When its freezing....the heat is important.
The "o" ring just sits atop the thermostat...its not a big deal to install, but many people forget to put one in. I too would avoicd installing a heater core unless it was the only option. You have to make sure the air is out of the system and you have to make sure that your two heater hoses are hot.
Nicely done! I've been curious about this one since last year!!
- Thread starter
- #48
Thanks. I didn't do anything with it all summer. Then, as soon as it started getting cooler, I thought, time to open it up. I went after that t-stat first, thinking it was the easiest thing to check. Amazing how important that o-ring is!
This morning, my boy climbed into the back seat. I had the truck idling in the driveway, as I was getting ready to go to the hardware store. He said, "Dad, it's hot in here!" I said, "Nice, ain't it?!"
I love it when a problem gets solved! You mudders were a big help to me.
That's awesome! Again, good to hear and thank you for updating the solution back to the forum.
Koby
Koby
Speaking of O-rings; is it just me or did Toyota recently reduce the width of the upper Tstat O-rings? Either the ID is larger or the OD is smaller, but it seems like there's a lot less material there now. I've notived this on my last two tstat changes (I always change it out for preventative maintenance whenever I tear into the H/C system, and I'm a bit OCD with that stuff).
I've had similar issues with tepid air from the main heater with good heat from the rear. Went to do a flush of my core yesterday and found this:
A little overzealous hose clamp tightening on the part of the PO. I straightened it out as best I could and the heat works much better now--once the truck warms up.
I went ahead and did the flush anyways with muriatic acid. I didn't get much brown stuff out or see much improvement in flow, so I don't think that was a big contributor to my problem.
The truck still takes f o r e v e r to warm up . . . so I'll be attacking the thermostat and checking that gasket next. My commute is only three miles, I want to be able to enjoy my new found heat!
A little overzealous hose clamp tightening on the part of the PO. I straightened it out as best I could and the heat works much better now--once the truck warms up.
I went ahead and did the flush anyways with muriatic acid. I didn't get much brown stuff out or see much improvement in flow, so I don't think that was a big contributor to my problem.
The truck still takes f o r e v e r to warm up . . . so I'll be attacking the thermostat and checking that gasket next. My commute is only three miles, I want to be able to enjoy my new found heat!
Hey guys, noobie here. Not sure if anyone will reply to this b/c this thread is so old (great thread by the way, very informative) but I got a heater question. I've scoured all these threads and not seeing an answer to my problem.
In general the engine runs pretty cool, barely above the C even when doing 60 uphill heading to the mountains. When I'm in traffic she gets up to midway between C/H, and that's the ONLY time when I get heat. Runs cool/tepid at best any other time. Rear heater doesn't do anything. I guess I have 2 questions... 1) should I be concerned engine runs so cool, and 2) what can I do to get heat ALL the time?
Background-- I've only had the trucks a few months, and before I even drove it I flushed the radiator b/c it came from warm climate and wanted to get the ratio better for the north winters. No idea if heater worked before that.
I'm going to burp it (seems that could help) but before I replace the thermostat / O-ring thought I'd ask for any other suggestions, since it does get heat sometimes but not all the time. The worst part is I am not a wrench so I gotta take it to my guy down the street-- who I do trust, but yknow, would rather not walk in and say "here, fix this" and get a bill for $500 b/c he did more than needed.
Thanks guys.
In general the engine runs pretty cool, barely above the C even when doing 60 uphill heading to the mountains. When I'm in traffic she gets up to midway between C/H, and that's the ONLY time when I get heat. Runs cool/tepid at best any other time. Rear heater doesn't do anything. I guess I have 2 questions... 1) should I be concerned engine runs so cool, and 2) what can I do to get heat ALL the time?
Background-- I've only had the trucks a few months, and before I even drove it I flushed the radiator b/c it came from warm climate and wanted to get the ratio better for the north winters. No idea if heater worked before that.
I'm going to burp it (seems that could help) but before I replace the thermostat / O-ring thought I'd ask for any other suggestions, since it does get heat sometimes but not all the time. The worst part is I am not a wrench so I gotta take it to my guy down the street-- who I do trust, but yknow, would rather not walk in and say "here, fix this" and get a bill for $500 b/c he did more than needed.
Thanks guys.
Highly likely you have exactly the same problem....defective thermostat or o ring. Need to replace the thermostat/o-ring washer/gasket all at the same time. If the truck sits on "C" ....thats a good clue that you probally have the same issue as it would appear its not warming up.
Highly likely you have exactly the same problem....defective thermostat or o ring. Need to replace the thermostat/o-ring washer/gasket all at the same time. If the truck sits on "C" ....thats a good clue that you probally have the same issue as it would appear its not warming up.
Thanks Elbert. Hoping I don't need to dig into the heater core etc. I'll keep this updated.
I just had my radiator rodded and reinstalled. My mechanic capped off the heater return line. Now I have no heat and I can't find a diagram of where the return line is supposed to connect back at the water pump.
It's an FJ60 1983 F2 engine.
Heater valve is clean and the heat worked great before the radiator was removed.
Any thoughts?
It's an FJ60 1983 F2 engine.
Heater valve is clean and the heat worked great before the radiator was removed.
Any thoughts?
gregnash
Anal Retentive Analyst
Sure that someone like @Output Shaft can throw up some pics for you. If I don't see any by lunch time I will pop my hood and snap a couple.
ntsqd
technerd
Ask your mechanic to do the fix correctly?
Here's the Toyota drawing
