Cooling System Questions

[SEAKSR]

Here's the deal:

1990 Jeep Ch. 6 cylinder inline engine.

What it's doing: dying at stop lights/signs, boiling over when driving, over heating (in 15 degree weather), and not blowing any heat through the heating system either.

The radiator reservoir is full, 50/50 mix, but doesn't seem to be circulating to keep the engine cool. Nothing's pointing to a blown head gasket, i.e. oil looks normal, everything sounds normal, and it's running normal, except on longer excursions (more than 3 miles one way... Hey I live in a tiny ass town, and don't go very far).

My questions are: What parts should I look at replacing? Is there anything else that needs to be checked? Is it a possibility that the (my mind is gone completely blank at the moment) part that regulates the gas to the engine is frozen open, therefore flooding the engine as well?

[Terracoma]

Since you mentioned non-circulation... Have you checked the thermostat for proper operation? Replacements are cheap.

Has the cooling system been flushed within the last 30,000 miles? Within the last 60,000 miles? Could be a blockage somewhere.

[SEAKSR]

We haven't driven it 30,000 miles, but it hasn't been flushed since we bought it about a year ago. The plan is to do without wheels and take it to the mechanic (I'm not supposed to work on it in my driveway, never mind the 0 degree weather right now) and have it flushed etc. I know it will drive across two streets to the mechanic. That's a good suggestion, and I was thinking that myself.

[dangeranger01]

Could have a stuck tstat, also the heater core could be plugged. Why cant you work on it? HOA?

[83nismo]

sounds like 2 diff. problems happening at once. I would check the tstat first. As far as dieing the cold weather an elevation could have alot to do with that. ( just threw a code in my durango do to cold weather the vss didnt like me spining tires.) weather puts a huge strain on rigs...

[SEAKSR]

Why cant you work on it? HOA? lack of tools mostly... and i like my fingers alive, as opposed to frostbit. And the h20 is turned off to the outside faucet.

[ramtime]

I would say it's a t-stat that your having problems with. Replace it with a new one, they only cost a couple of bucks and can normally be replaced with just a screw driver. Next, what type of car is this? It's hard guessing what the stalling problems are without knowing what motor your talking about.

[Terracoma]

Next, what type of car is this? It's hard guessing what the stalling problems are without knowing what motor your talking about.
Here's the deal:

1990 Jeep Ch. 6 cylinder inline engine.


:rocker: