No heat in 4650 cab

Bought a Deere 4650 a couple of weeks ago. I posted about it back when I was dickering on it back in December. Well I made the buy and picked it up from the dealer on Jan 5. Drove it home and there was no heat in the cab. Fan ran but no heat. Dealer mechanic comes out to my shop and said the heater valve was probably bad. He'll order one. Sat in the shop a week while I did some other piddly stuff on it. He came back, replaced the valve and still no heat so I drove it back to the dealer. They blew out the core, no heat. Then they replaced the water pump. Said they had had some trouble with impellers spinning on the shaft. Still no heat.

Then an older mechanic said to pull the heater line from the engine and put a clear hose on it and watch what coes through it. All they had was air and a sprinkling of anti-freeze. Then they pulled the rad cap and found bubbles.

Head is coming off tomorrow. I did buy this tractor right so I can afford to spend some money on it. I rented it for 75 hours last spring and it pulled and ran OK so everything else seems to be OK. I have known the dealer for forty years and he's a square shooter who wants a happy customer so I'm fairly confident he'll go at least part way on this. You just never know when you buy used stuff and when you do you have to buy it cheap enough so you have a cushion. I guess you can't win em all!!! Jim

Ask REAL NICE for some help,you'll probally get some.Yell,scream,and be a jerk about it,he'll probally tell you to "get f*****d".thats how one local dealer handles it.Another local dealer(a crook),as soon as the check is in his hand,you're on your own.I wonder how he is still in busness .

fixerupper
Are you sure there isn't a heater hose cutoff valve that hasn't been opened? I seen cutoff valve added because heater(coolant) control valve wouldn't shut coolant flow off 100% to heater core limiting AC cooling. Did dealer pressure test radiator or just see bubbles?

The first thing I did was check for a cutoff valve. I stopped and checked for one when I was three miles away from the dealer on the way home. Second, there was spent combustion gas coming out of the heater hose port on the engine. The mechanic who suggested putting the clear test hose in the line learned that trick when he worked for a Case dealership years ago. It's a neat trick to keep in mind for future reference.

I haven't talked to the dealer himself yet but I'm pretty sure he'll have a peace offering in mind. We've been friends for forty years and I plan to keep it going. I'm not a yelling, screaming type of guy until I'm loading hogs, but that's a forgivable sin. Jim

The dealer should foot the whole bill. It wasn't right when you got it.

I think that the heater core may be plugged. If someone used bars leak or another type of sealant it will plug the heater core and not allow fluid through it. I learned this the hard way one time. Something to check is for gooey build up in the radiator. Hope this helps.

I'll keep you guys posted on the final outcome. They did blow out the core and it was clear. Head gasket was seeping out the right side slightly when I used it last spring so I was expecting to do a head gasket job sometime down the road. I just didn't expect it now. Jim

Yep. There you go. What tx jim said. That's what it was with my 4230.

By the sounds of it I am having the same problem with my 3140. Did you ever get it figured out?