Cooloing system???

[Rider0033]

ok so i bought a truck from my sister (95 s10 2.2L) and yeaaaaaaah when i changed the oil it was evident that there has been no love given to this truck for a while. so just for an all around tune up i changed

1. air filter (changed to cold air intake)
2. pvc valve
3. fuel filter
4. oil filter
5. oil
6. spark plugs
7. spark plug wires

ran like a champ (even now) except now it is building alot of pressure in the cooling system. started getting around the 210 temp and a little above so i parked and killed the truck. as soon as the engine stopped the 50/50 was spewing. so i changed

1. lower radiator hose (where i thought leak was coming from)
2. thermostat and seal
3. radiator cap (16psi)
4. 50/50

the same problem happened today and it's not the lower radiator hose thats leaking. I'm going to chage the water pump because the system is still building loads of pressure.

the hose/line that is leaking is a line that is half rubber and half metal piping . it feeds in right next to the lower radiator hose on the block. hopefully this fixes the problem. any thougths are good

[Dr_Zero]

You might consider a good radiator flush if it was not maintained it might be full of scale and junk.

Also you can get a rad cheap from radiator classic on ebay I got a 2 row for my 97 Yukon for$100 delivered to the house.
I found that nugget out after I paid $70 to get the old one rodded out

Oh and check out Rockauto.com for the pump I got a new Ac Delco water pump from them for less than a no name here in town!

[vncj96]

New T-stat, and power flush, its the cheapest to start to diagnose it

[Rider0033]

thanks for the info guys. the websites will come in handy in about 5 minutes Dr 0. what do you mean by power flush vncj? i dropped a new t stat in so that part is done. wont be able to get to it until this weekend though

[Dr_Zero]

thanks for the info guys. the websites will come in handy in about 5 minutes Dr 0. what do you mean by power flush vncj? i dropped a new t stat in so that part is done. wont be able to get to it until this weekend though

Cooling system power flush and refill
While you can replace old coolant by draining it out and replacing it with fresh coolant, the best way to properly maintain your cooling system is to have the system power flushed. Power flushing will remove all the old coolant and pull out any sediment and scale along with it.

Power flushing requires a special machine that many auto repair shops have for the purpose. The procedure requires that the thermostat is removed, the lower radiator hose is disconnected, and the flush machine is connected in line. The lower hose is connected to the machine and the other hose from the machine is connected to the radiator where the lower hose was disconnected from.

Water, and sometimes, a cleaning agent is pumped through the cooling system in a reverse path from the normal coolant flow. This allows any scale to be loosened and flow out. Once clear water is coming out of the system, the hose is reconnected and a new thermostat is installed. Then the cooling system is refilled with the appropriate amount of antifreeze to bring the coolant to the proper mixture of antifreeze and water. For most vehicles and most climates, the mixture is 50 percent antifreeze and 50 percent water. In colder climates, more antifreeze is used, but must never exceed 75 percent antifreeze. Check your owner's manual for the proper procedures and recommendations for your vehicle.