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It could literally be anywhere. But usually, the radiator sludges up first, because it's cooler than other areas, allowing corrosion byproducts and chemicals in the coolant to plate out onto the radiator tubes.
Then again, there may be NO clog. It may be that your water pump impellar is so eroded from cavitation and / or so corroded from improper coolant chemistry that it can no longer pump enough coolant to keep the engine cool.
The only way to be sure is to do a total tear-down of the engine and coolant system, and inspect everything.
What else can I help you with?
P1151 in Prius?
Trouble code P1151 means: Coolant Path Clog Up for Coolant Heat Storage System
98 BMW overheats?
what is the question? why it would overheat???? if so: because -thermostat is stuck closed -or no coolant -or head gasket leak -or coolant system leak -or bad water pump -or clog in coolant system -or ......
Do you have to use Honda coolant in 96 prelude?
No, there are different types of coolant though so make sure you use/refill with something that is compatible with the liquid already in your system. If you use two different types of coolant they may clog up or end up not functioning as it should.
2000 Chevy truck heater not working?
you probably need to flush the coolant system. GM claims that the coolant is good for a ridiculous number of miles, but it is not so. The coolant breaks down and forms large clumps which will clog up the heater core. You may need to flush several times to get it all out.
What would cause 84 Chevy Celebrity to overheat?
Possible reasons for overheating: Low or out of coolant Clog in cooling system Thermostat failure Cooling fan not operating water pump failure
What is the main reason a 1989 Astor Van is overheating?
Overheating is always caused by a problem with the cooling system. you may have a leak, or a clog, or air trapped in the system. check there is no oil in the coolant, and the coolant level is sufficient. if there is oil (it will look creamy rather than translucent) or the level is low, bring it to a garage for inspection and repair.
Does radiator stop leak hurt your car?
Yes. Can clog coolant passages in your engine and other areas.
What causes a coolant reservoir to overflow in a 2001 Chevy Malibu during operation?
It could be a couple of things. The coolant system could be over full. There could be a clog in the radiator. Or possibly the thermostat but not likely. also, the ford coolant tank is pressure sealed, if the cap to the tank has a defective seal, it WILL overflow when you stop your car, or whenever the pressure builds
Your car keeps running hot so I change the radiator and it still runs hot. What else could it be?
Coolant may not be moving through the system fast enough. Possibly a bad pump or a clog somewhere.
What color is antifreeze for 1999 Saturn sL2 sedans?
1999 SL2 should have what is known as DEXCOOL in the cooling system. It's a GM special coolant that you can obtain at any Autozone or your preferred parts provider. The color in this should be a pinkish color if not orangish. Hope this helps you. DO NOT USE GREEN ANTIFREEZE/COOLANT IN YOUR ENGINE OR MIX COLORS OF COOLANT! YOU WILL CAUSE A GELATIN LIKE SUBSTANCE TO FORM, AND POSSIBLY CLOG/RUIN YOUR COOLING SYSTEM.
How do you get rid of an air pocket in an engine coolant system?
By bleeding the coolant system.
What antifreeze do you used for your pontaic grand prix?
If it's the original type of coolant it has to be Dexcool approved coolant, which is reddish in color. Most people, including myslef switch to the green color coolant when flushing the cooling system. I recommend this as Dexcool is known to "gum up" and clog engines. This usually only happens when the coolant is left in too long, or not changed when recommended. NEVER mix different color coolants, that will cause the same effect
