NEED HELP, cooling system 99, 2.5 auto P38

Irishss said:

Yes, the rad appears to be a recent installation…while vehicle was running and idling the top was very hot, actually right hose was roasting..I crawled under and across the bottom was not as hot..

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Well the bottom will be cooler than the top, the function of the RAD is too cool but the question is how much cooler? How hot is the outlet hose on the battery side of the RAD?

Datatek said:

Well the bottom will be cooler than the top, the function of the RAD is too cool but the question is how much cooler? How hot is the outlet hose on the battery side of the RAD?

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Ok rad on top is roasting
The rest of the rad is cold
Hose on battery side is lukewarm
Hose on other side is extremely got

The nissens I had did indeed have a baffle, doesn’t necessarily mean yours does, missed in manufacturing, sent wrong one there’s many reasons. Usually we do Wammers test - turn it upside down and try to roll a marble through the top before fitting - the baffle will stop it.
You could perhaps pull a pipe off and try poke something down there to feel for one?

Other thing is air lock. I’d done it a few times just like a normal car with no issues, then one time something was wrong and I couldn’t work out what. Turned out to be air stuck in there somehow. It came out when I revved it a little with cap off while having FR wheel up on few blocks to raise it. TY @Datatek
One place air tends to get stuck in a p38D is thermostat if you changed it - OE has a valve on it (fitted at 12oclock position) for this reason, many aftermarket ones don’t, some people fit anyway no issues, I just drilled my own little hole. If you changed it without a valve a good burping on that pipe once thermostat is fully open could likely clear it.

Irishss said:

Ok rad on top is roasting
The rest of the rad is cold
Hose on battery side is lukewarm
Hose on other side is extremely got

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If the outlet is cool rather than hot, sounds like the baffle is there but you have an airlock. No hole in the top of the thermostat will cause problems. I always put the front of the car on ramps when refilling as it's easier to get the air out.

Datatek said:

If the outlet is cool rather than hot, sounds like the baffle is there but you have an airlock. No hole in the top of the thermostat will cause problems. I always put the front of the car on ramps when refilling as it's easier to get the air out.

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Hey Keith, does your two have the down and under bleed pipe that goes beneath the battery tray?
I replaced the down and under type for a rubber tube that goes around the battery and directly to the coolant tank. Far less bother bleeding after that

Mark Piercy said:

Hey Keith, does your two have the down and under bleed pipe that goes beneath the battery tray?
I replaced the down and under type for a rubber tube that goes around the battery and directly to the coolant tank. Far less bother bleeding after that

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NO they are the later type where the bleed pipe stays at much the same level I think. Definitely not under the battery tray. I'll double check tomorrow.